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Unit 2 Review

Total questions: 216

Worksheet time: 7hrs 32mins

Name
Class
Date
1.

Identify the Reactants in this equation.

a)

A

b)

B

2.

Identify the number in blue.

a)

Product

b)

Reactant

c)

Coefficient

d)

Subscript

3.

How many atoms of nitrogen are in the compound shown above?

a)

1

b)

2

c)

3

d)

4

4.

What are the blue numbers called?

a)

oxidation numbers

b)

subscripts

c)

group numbers

d)

product numbers

5.

How many atoms of nitrogen are present in this molecule?

a)

1

b)

2

c)

3

d)

4

6.

What does the symbol inside the circle mean?

a)

"yields, or produces"

b)

"dissolved in water"

c)

"forms a precipitate"

d)

"released as a gas"

7.

Is the compound in the pink box a Reactant or a Product?

a)

Reactant

b)

Product

8.

How many molecules of KNO3 are shown?

a)

1

b)

2

c)

3

d)

4

9.

How many atoms of oxygen are represented in the picture?

a)

2

b)

3

c)

5

d)

6

10.
How many oxygen atoms are present in the following? 
4Ca(OH)2
a)
4
b)
6
c)
8
d)
1
11.
The substances listed on the right side of a chemical equation are the
a)
Yields
b)
Reactants
c)
Products
d)
Precipitates
12.
In chemical reactions, what does the principle of conservation of mass mean?
a)
Matter is not created or destroyed.
b)
The total mass of the reactants is greater than the total mass of the products.
c)
The total mass of the reactants is less than the total mass of the products.
d)
Matter is not changed.
13.
A molecule is smaller than an atom.
a)
True
b)
False
14.
How many Oxygen (O) atoms are in 2C2HO8Cl2
a)
2
b)
16
c)
8
d)
5
15.
Which is the name of the kind of solid substance formed in this figure?  
a)
aqueous 
b)
precipitate
c)
acid
d)
synthesis 
16.
Provides evidence that a chemical reaction has occurred. 
a)
dissolving 
b)
melting
c)
formation of a gas
d)
bending
17.
Describes the number of atoms in a compound of each element. 
a)
coefficient 
b)
superscript 
c)
subscript 
d)
SI unit 
18.
In a ___________change, a substance changes into a different substance.
a)
Physical
b)
Chemical
19.
The Law of Conservation of Mass states
a)
that matter exists in all states and reacts the same
b)
that matter can only be changed into new substances by introducing a catalyst
c)
that matter exists in the same state throughout any chemical change
d)
that matter cannot be created or destroyed and that the mass of the products must equal the mass of the reactants
20.
a copper penny turning greenish after a few years.
a)
Chemical Change
b)
Physical Change
21.
An gel ice pack getting cold after you put it in the freezer for an hour.
a)
Chemical Change
b)
Physical Change
22.
The smell your dog makes after eating to much people food.
a)
Chemical Change
b)
Physical Change
23.
___________________ are the elements are compounds that leave (are formed in) a chemical
reaction.
a)
Polymers
b)
Bonds
c)
Reactants
d)
Products
24.
Which of the following IS a physical change?
a)
Getting a haircut
b)
Rusty metal
c)
sour milk
d)
A compound
25.
How many F atoms are in this compound?
6MgF2 
a)
2
b)
6
c)
8
d)
12
26.

Which statement correctly describes the location and charge of the neutrons in an atom?

a)

The neutrons are inside the nucleus and have a positive charge.

b)

The neutrons are outside the nucleus and have a neutral charge.

c)

The neutrons are outside the nucleus and have a negative charge.

d)

The neutrons are inside the nucleus and have a neutral charge.

27.

What type of particles are found in the cloud surrounding the atom's nucleus?

a)

Neutral particles and positively charge particles

b)

Positive charge particles only

c)

Negatively charge particles and positively charge particles

d)

Negatively charge particles only

28.

Which of the following best describes a proton?

a)

It has a positive charge and the same mass as an electron

b)

It has a neutral charge and the same mass as an neutron

c)

It has a positive charge and the same mass as an neutron

d)

It has a negative charge and the same mass as an electron

29.
Where is most of the mass in an atom located?
a)
in the nucleus
b)
in the protons
c)
in the neutrons
d)
in the electrons
30.
The particles with no charge in an atom are the _______.
a)
electrons
b)
neutrons
c)
protons
d)
protons and neutrons
31.
 What is the mass number of this element?
a)
5
b)
27
c)
32
d)
59
32.
What is the atomic number?
a)
number of protons
b)
number of neutrons
33.
What is the mass number?
a)
the number of protons
b)
the sum of the number of protons and the number of neutrons in the nucleus of an atom 
c)
the number of electrons
d)
the number of neutrons
34.
Which statement best describes an electron?
a)
Smaller mass than a proton and a negative charge
b)
Smaller mass than a proton and a positive charge
c)
Greater mass than a proton and a negative charge
d)
Greater mass than a proton and a positive charge
35.

How many atoms are represented in the reactants in the equation?

a)

6

b)

7

c)

4

d)

5

36.

In which of these compounds are there twice as many oxygen atoms as hydrogen atoms?

a)

H3PO4

b)

H2SO4

c)

HCIO3

d)

H2O

37.

The chemical formula for sodium sulfate is Na2SO4. How many sulfur atoms are in the formula for sodium sulfate?

a)

1

b)

2

c)

6

d)

7

38.

How many atoms of oxygen are in a molecule of glucose (C6H12O6)?

a)

4

b)

6

c)

12

d)

24

39.

How many atoms in all are found in the compound above?

a)

3

b)

4

c)

5

d)

6

40.

Which of the models best represents CaCO3?

a)
b)
c)
d)
41.

How many elements are in C6H12O6?

a)

1

b)

2

c)

3

d)

4

42.
How many Hydrogen are in 4H2O?
a)
6
b)
8
c)
2
d)
4
43.
How many O's are in Al₂(SO₄)₃
a)
4
b)
12
c)
7
d)
24
44.

Sodium sulfate is used in laundry detergent. It is a compound that contains 2 atoms of sodium, 1 atom of sulfur, and 4 atoms of oxygen. What is the correct chemical formula for sodium sulfate?

a)

NA2SO4

b)

Na2S2O4

c)

Na2SO4

d)

Na2SO8

45.
Which of the following is an element?
a)
FeO
b)
O2
c)
NaOH
d)
SiO2
46.
Which of the following is a compound?
a)
Ca
b)
Pb
c)
H2
d)
MgBr
47.
How many elements are in the compound C2H8O ?
a)
2
b)
1
c)
3
d)
0
48.
How many total atoms are in the compound H2SO4?
a)
6
b)
5
c)
7
d)
3
49.
Which one of the following compounds is organic?
a)
H2O
b)
CaCu3
c)
C6H12O6
d)
H2Cl3
50.
How many Sodium atoms are in the compound 6NaCl?
a)
1
b)
12
c)
6
d)
4
51.
How many Carbon atoms are on the product side of this chemical equation?            
2C2H2 + 5O2  --->  4CO2 + 2H2O
a)
2
b)
3
c)
4
d)
5
52.
How many Hydrogen atoms are on the reactant side of this chemical equation?            
2C2H2 + 5O2  --->  4CO2 + 2H2O
a)
2
b)
4
c)
6
d)
8
53.
Does this chemical equation follow the Law of Conservation of Mass? (Hint: Is it balanced?)       
2C2H2  +  5O2 ---> 4CO2  +  2H2O 
a)
No
b)
Yes
c)
maybe
d)
huh?
54.
According to the Law of Conservation of Mass, –
a)
matter is not created or destroyed in a chemical reaction.
b)
matter is always created in a chemical reaction.
c)
matter is always destroyed in a chemical reaction.
d)
matter is created and then destroyed in a chemical reaction.
55.

The process by which one or more substances change to produce one or more different substances.

a)

Evidence

b)

Chemical Reaction

c)

Substance

d)

Reactants

56.

A solid that is deposited from a solution

a)

Exothermic Reaction

b)

Endothermic Reaction

c)

Precipitate

d)

Product

57.

The mass of all reactants must equal the mass of all products. Matter is neither created nor destroyed.

a)

Coefficient

b)

Subscript

c)

Products

d)

The Law of Conservation of Mass

58.

Which of the following examples shows that a chemical reaction has occurred?

a)

A rock breaks into smaller pieces when it is struck with a hammer.

b)

Bubbles form when baking soda is added to vinegar and mixed.

c)

A cup of water turns pink when a few drops of red food coloring are added.

d)

A solid is formed when heat is removed from a sample of water.

59.

Evidence of a chemical reaction includes anything that shows -

a)

a new substance has been formed

b)

a solid has dissolved in a liquid.

c)

an interaction between two gases.

d)

a change in the state of matter.

60.

A clear liquid from a flask is poured into another clear liquid in a beaker. Which of the following results of this procedure would indicate a new substance was formed?

a)

The level of the substance in the beaker is higher after the other liquid is added.

b)

A yellow solid forms and then settles to the bottom of the beaker.

c)

Small white crystals are left behind in the flask that held the first liquid.

d)

The mass of the combined liquids is greater than either original liquid.

61.

In air, phosphorous, a white solid, spontaneously reacts to produce a pale, green light. Why might the green light be evidence of a chemical reaction?

a)

Green is a color associated with reactions.

b)

Phosphorous is a solid at room temperature.

c)

The reaction will not occur in a closed container.

d)

It indicates a change in temperature.

62.

Which of the following is an example that includes evidence of a chemical reaction?

a)

A sample of zinc is placed in water and settles to the bottom.

b)

A solid block of ice is heated and completely melts into a liquid.

c)

Sugar that is burned gives off an odor and turns brown and then black.

d)

A tomato is placed into a blender and chopped up into smaller pieces.

63.

A chemical reaction is represented in the equation provided.

3H2 + 3Cl2 → ? HCl

What number needs to go in front of the HCl to balance the equation?

a)

2

b)

3

c)

5

d)

6

64.

Which of the following examples shows that a chemical reaction has occurred?

a)

Teeth chop up an apple slice into smaller pieces.

b)

Sugar placed in sugar water sinks to the bottom.

c)

A glass jar shatters into many pieces when dropped.

d)

Bleach gets rid of a ketchup stain on a white shirt.

65.
A change in which NEW substances are formed.
a)
Chemical change
b)
Physical change
c)
Casual change
d)
Formal change
66.
Which of the following could indicate a chemical change? 
a)
All of the answers could indicate Chemical Change 
b)
a color change has occurred 
c)
bubbles appear 
d)
identifying one or more new chemical products 
67.
 Which is NOT an example of chemical change?
a)
production of gas.
b)
change in color.
c)
change in size.
d)
transfer of energy.
68.
A copper penny turning greenish after a few years is an example of...
a)
Chemical Change
b)
Physical Change
69.
Which of the following is a PHYSICAL change?
a)
Getting a haircut
b)
Rusty metal
c)
sour milk
d)
A compound
70.
What is the law of conservation of mass?
a)
The part of the universe being studied
b)
The rest of the universe that interacts with the system
c)
Within a closed system, mass does not change
d)
A system that freely exchanges matter and energy
71.
A scientist performed four investigations using eight different liquids. In each investigation, the scientist combined two of the liquids and recorded observations. In which investigation is it LEAST likely that the liquids reacted chemically?
a)
1
b)
2
c)
3
d)
4
72.
Four students performed four different investigations by combining different substances. Their results are shown in the table provided. In which experiment are new substances being formed?
a)
Experiment 1
b)
Experiment 2
c)
Experiment 3
d)
Experiment 4
73.

Which of the models of a chemical reaction best represents the Law of Conservation of Mass?

a)

A

b)

B

c)

C

d)

D

74.

How many grams of OXYGEN would be needed to show conservation of mass in the example below?

a)

100 g

b)

93 g

c)

7 g

d)

0 g

75.
Evidence of a chemical reactions is anything that shows - 
a)
a new substance has formed
b)
a solid dissolved in a liquid
c)
interaction between 2 gases
d)
a change in the state of matter
76.

You know that a chemical reaction is occurring here because you see __________________ . (Pick 3)

a)

purple color

b)

smoke

c)

ice formation

d)

fire

e)

a yellow precipitate

77.

Which is the name of the kind of solid substance formed in this figure?  

a)
aqueous 
b)
precipitate
c)
acid
d)
synthesis 
78.

Baking soda and vinegar combine to make carbon dioxide, which is a (a)   change?

79.

Which statement best describes evidence that a chemical reaction occurs as a cake bakes?

a)

The water in the cake batter evaporates.

b)

The cake rises as gas bubbles form in the baking cake.

c)

The cake takes the shape of the container in which it is baked.

d)

The water in the cake batter is used to keep the cake moist as it bakes.

80.
In a container, a solid consisting of clear crystals is combined with a blue liquid and the following observations are obtained.
 How many of the listed observations indicate a new substance was formed?
a)
1
b)
2
c)
3
d)
4
81.
For an investigation a student poured a blue solution of CuSO4 into a beaker. The student placed a shiny, silver-colored strip of zinc metal in the solution and observed the changes.
The student inferred that a chemical reaction occurred. What evidence supports this inference?
a)
A dark solid formed on the zinc metal.
b)

The zinc metal remained silver-colored and shiny
c)
The CuSO4 solution turned blue when the zinc metal was added.
d)
None of these
82.
A change in the size, shape, or state of matter.
a)
chemical change
b)
physical change
c)
chemical reaction
d)
electron change
83.
Which of the following could indicate a chemical change? 
a)
All of the answers could indicate Chemical Change 
b)
a color change has occurred 
c)
bubbles appear 
d)
identifying one or more new chemical products 
84.
Exothermic reactions...
a)
Absorb energy
b)
Release energy
c)
Release Color
d)
Absorb Color
85.
 Which is NOT an example of chemical change?
a)
production of gas.
b)
change in color.
c)
change in size.
d)
transfer of energy.
86.
Chemical reactions that absorb energy are known as ________________________.
a)
Endothermic
b)
Exothermic
c)
Boring
d)
Reactions
87.

Melting sugar

a)

Physical

b)

Chemical

88.

Are the forces acting on the object balanced or unbalanced? The man does a flip on the fly board.


(a)  
Choose from the below words
unbalanced
balanced
89.

How will this object move?

a)

It will not move

b)

It will move in both directions

c)

It will move to the right

d)

It will move to the left

90.

How will this object move?

a)

It will not move

b)

It will move in both directions

c)

It will move to the right

d)

It will move to the left

91.

Shadell pushes a box 35 N to the right. Nazai pushes the box 25 N in the same direction. What is the net force?


(a)  
Choose from the below words
60 N unbalanced to the right
60 N balanced to the right
10 N balanced to the right
10 N unbalanced to the right
92.

What is net force?

(a)  

93.

Balanced or Unbalanced

(a)  

94.

What is the net force?


(a)  
Choose from the below words
5 N left
30 N left
25 N right
55 N right
95.

Which of the answer choices is not a characteristic of a balanced force?

a)

no change in motion

b)

moving at a constant speed

c)

causes a change in motion

d)

net force of zero

96.

If an object is not moving the forces acting upon it are (a)  

97.

A (a)   is a push or a pull on an object.

98.
What will cause an object to move?
a)
Applied forces
b)
Balanced forces
c)
Unbalanced forces
99.

Balanced forces causes

a)

speed of an object

b)

change in motion

c)

no change in motion

d)

no friction on object

100.
What is the net force?
a)
17 N Right
b)
3 N Right
c)
3 N Left
d)
17 N Left
101.
The forces represented by the arrows in the diagrams are applied to the four objects that are at rest on a table. Which object is most likely to move to the right?
a)
Object W
b)
Object X
c)
Object Y
d)
Object Z
102.

Calculate the net force shown in the  diagram?

(a)  

103.
What is the net force?
a)
20 N 
b)
0 N 
c)
400 N 
d)
40 N 
104.
What is the unit to MEASURE force?
a)
Kilogram
b)
Meter
c)
Pascal
d)
Newton
105.
What is the net force?
a)
10 N
b)
0 N
c)
25 N
d)
1 N
106.
A runners races in the 100 meter dash.  It takes her 10 seconds to finish.  What is her average speed?
a)
10 m/s
b)
1000 m/s
c)
100 seconds
d)
10 seconds
107.
If an object is stationary (not moving) the forces acting upon it are _____________
a)
unbalanced
b)
weak
c)
balanced
d)
Hulk Smash!
108.
What is the speed of a man who runs 10 miles in 1 hr?
a)
20 miles
b)
10 m/min
c)
10 miles/hr
d)
20 hrs
109.
What is the equation to calculate speed?
a)
speed = distance/time
b)
speed = time/distance
c)
speed = time x distance 
d)
speed = speed/time 
110.
1. Which of the following statements about speed and velocity is correct?
a)
Velocity only describes an object’s rate of motion.
b)
Speed describes how an object is changing its velocity.
c)
Speed and velocity both describe how an object is speeding up.
d)
Only velocity includes the direction an object is traveling.
111.

The motorcycle slowed down as it approached the yield sign. This is an example of

a)

speed

b)

velocity

c)

acceleration

112.

Speed in a given direction is the definition of ____.

a)

Speed

b)

Velocity

c)

Acceleration

d)

Direction

113.
Which of the following is a unit for acceleration?
a)
km/s
b)
m/s2
c)
mi/hr
d)
ft
114.
65mi/hr South is an example of...
a)
Speed
b)
Velocity
c)
Acceleration
d)
Direction
115.
In each of the following cases, determine where the car has no acceleration ?
a)
A car shortly after a stoplight turns green.
b)
A car approaching a red light
c)
A car with the cruise control set at 80 km/h
d)
A car turning a curve at a constant speed
116.
Find the net force: 15 N to the right, and another 15 newtons to the right.
a)
0 N Right
b)
0 N Left
c)
30 N Left
d)
30 N Right
117.
8 N to the left , and 4 N to the right. Find the net force. Is this balanced 
a)
12 N Right  No
b)
4 N Left  No
c)
12 N Right  Yes
d)
4 N Left  Yes
118.
What is force?
a)
A push exerted on an object
b)
A push or pull exerted on an object
c)
A pull exerted on an object
d)
Nothing
119.
Forces that have a net force of zero ( the object is still).
a)
Balanced force
b)
Unbalanced force
120.
What will cause an object to move?
a)
Applied forces
b)
Balanced forces
c)
Unbalanced forces
121.
Balanced or Unbalanced?
a)
Balanced 
b)
Unbalanced
122.
When forces are ___________ the object will move.
a)
unbalanced
b)
balanced
c)
light
d)
gravity
123.

Calculate the Net Force.

a)

60N, Right

b)

60N, Left

c)

100N, Right

d)

100N, Left

124.
Are forces balanced or unbalanced when a car is moving at a constant speed in a straight line?
a)
Balanced
b)
Unbalanced
125.
Sometimes tectonic plates do not move easily past one another, and the plates become stuck. Forces build up, and when the plates finally move, tension is released, as shown below. The sudden movement of the plates is caused by -

a)
the mass of the plates
b)
the weight of the plates
c)
unbalance forces
d)
gravitational force
126.

Which of the following objects will experience an unbalanced force?

a)

A bike rider on a smooth and level road, pedaling at a constant rate.

b)

A train pulling on another train, each with the same amount of force.

c)

A chair sitting on the floor with balanced forces acting in opposite directions.

d)

A ball rolling across the floor with friction acting in the opposite direction.

127.
You and your dad are moving the couch from one side to another. Your dad pushes with a force of 35 N to the right and you push with a force of 25 N right. What is the net force on the couch?
a)
60 N right
b)
10 N left
c)
60 n right
d)
50 N left
128.

A wheeled cart is moving to the right at a constant speed. Two forces of equal magnitude are acting upon the cart. Which of the following best describes the forces and motion of the cart?

a)

Balanced Forces, Constant Speed

b)

Balanced Forces, Acceleration

c)

Unbalanced Forces, Constant Speed

d)

Unbalanced Forces, Acceleration

129.

What is the net force?

a)

400 N Up at an increasing speed

b)

400 N Down at an increasing speed

c)

400 N Down at a constant speed

d)

800 N Down at a constant speed

130.
Why does a book on a table not move?
a)
No forces are acting on the book
b)
Gravity is the only force acting on the book
c)
Forces of the table pushing up and gravity pulling down are balanced
131.
(T or F?) A balanced force is only an object that is not moving. 
a)
True 
b)
False
132.
The distance an object travels in a specific amount of time.
a)
Speed
b)
Velocity
c)
Acceleration
133.
An object speeding up, slowing down, and/or changing directions.
a)
Speed
b)
Velocity
c)
Acceleration
134.
Canadian geese can fly approximately 75 miles in 3 hours.
a)
Speed
b)
Velocity
c)
Acceleration
135.
A trip from Austin to Dallas takes about 3 hours going 65 mph north.
a)
Speed
b)
Velocity
c)
Acceleration
136.

How will the object act in response to these forces?

a)

The object will move upward and toward the right.

b)

The object will move to the right only.

c)

The object will move upward only.

d)

The object will remain at rest.

137.

Based on the information in the diagram, what will happen next?

a)

The flag on the rope will be pulled to the right.

b)

Both teams will be pulled toward the center.

c)

The flag on the rope will be pulled to the left.

d)

Both teams will be pushed away from the center.

138.

The graphs show the motion of four different objects. Each object moved in a single direction during the time period shown in the graph. Which of the objects were acted on by unbalanced forces?

a)

Only B,C, & D

b)

Only A

c)

Only A & B

d)

Only D

139.
a)

Green object is moving at a faster constant speed than Red

b)

Red object is moving at a faster constant speed than Green

c)

Green object is moving at a slower constant speed than Red

d)

Red object is moving 2 times faster than Green

140.

What is the person doing from 5 seconds to 10 seconds?

a)

Walking

b)

Running

c)

Standing Still

d)

Walking Fast

141.

What is the speed of this object at 3 seconds?

a)

5 m/s

b)

45 m/s

c)

5 s/m

d)

45 s/m

142.

Two students apply force to a box at rest on the floor. What is the total amount of force in Newtons acting on the box and in which direction?

a)

10 N Left

b)

10 N Right

c)

70 N Left

d)

70 N Right

143.
Acceleration only takes place when things speed up. 
a)
True
b)
False
144.
When are you undergoing an acceleration in a car? 
a)
speed up
b)
slow down
c)
make turns
d)
all of these!
145.
Changes in our speed, direction or both are called _________.
a)
gravity
b)
changes
c)
acceleration
d)
displacement
146.
What is the net force on this box?
a)
30 N left
b)
25 N right
c)
5 N left
d)
55 N right
147.
How will this object change its motion? 
a)
It will not change its motion. 
b)
It will accelerate to the right. 
c)
It will accelerate to the left. 
d)
It will move in both directions. 
148.
The total amount of forces acting on an object is called...
a)
Contact Force
b)
Balanced Force
c)
Unbalanced Force
d)
Net Force
149.
Which of the following has a net force of 0 Newtons?
a)
An asteroid moving at a constant speed through space 
b)
A car accelerating from a stop sign
c)
A box of dishes falling from a counter 
d)
A rocket taking off 
150.
Balanced or Unbalanced?
a)
Balanced 
b)
Unbalanced
151.
Which could be an example of an unbalanced force?
a)
A plate sitting on a dining table
b)
A ball at the top of a hill that is not moving
c)
A soccer ball kicked in space, traveling at a constant speed
d)
A baseball that has just been thrown to home plate.
152.
When an object has a net for that is GREATER than 0 Newtons, the object is...
a)
balanced and still
b)
balanced and moving at a constant speed
c)
unbalanced and accelerating
d)
unbalanced and still
153.
You and your dad are moving the couch from one side to another. Your dad pushes with a force of 35 N to the right and you also push with a force of 25 N right. What is the net force on the couch?
a)
60 N right, unbalanced
b)
10 N left, unbalanced
c)
60 N right, balanced
d)
50 N left, balanced
154.
What is the unit of force?
a)
Kilogram
b)
Meter
c)
Pascal
d)
Newton
155.
What will cause an object to change its motion?
a)
Applied forces
b)
Balanced forces
c)
Unbalanced forces
156.
Why does a book on a table not move?
a)
No forces are acting on the book
b)
Gravity is the only force acting on the book
c)
The forces of the table pushing up and gravity pulling down are balanced
157.
Objects that have a net force of zero are...
a)
Balanced
b)
Unbalanced
c)
Accelerating
158.
Calculate the Net Force. 
a)
60N, Left unbalanced
b)
40N, Right unbalanced
c)
0N balanced
d)
60N, Right, unbalanced
159.
8 N to the left , and 4 N to the right. Find the net force. Is this balanced?
a)
12 N Right  No
b)
4 N Left  No
c)
12 N Right  Yes
d)
4 N Left  Yes
160.
In a tug of war game, the NET FORCE is 50N to the LEFT.  The left team pulled with a force of 200N to the left. How much force did the losing team pull with?
a)
150N right
b)
250N right
c)
100N right
d)
50N right
161.
A wheeled cart is moving to the right at a constant speed. Which of the following best describes the forces and motion of the cart?
a)
Balanced Forces, Constant Speed
b)
Balanced Forces, Acceleration
c)
Unbalanced Forces, Constant Speed
d)
Unbalanced Forces, Acceleration
162.
Solve the problem. Careful! CHECK your math!
a)
5N
b)
8N
c)
3N
d)
11N
163.
In which of these cases is the car is balanced?
a)
A car shortly after a stoplight turns green.
b)
A car approaching a red light
c)
A car with the cruise control set at 80 km/h
d)
A car moving down a ramp
164.
What is the net force of an object that is not moving?
a)
0N
b)
100N
c)
Upward force
165.
Describe the motion of the car:
a)
accelerating left
b)
constant speed
c)
accelerating right
d)
constant speed
166.
What is the net force on this box?
a)
30 N left
b)
25 N right
c)
5 N left
d)
55 N right
167.
What is the unit of force?
a)
Kilogram
b)
Meter
c)
Pascal
d)
Newton
168.
The total amount of forces acting on an object is called...
a)
Contact Force
b)
Balanced Force
c)
Unbalanced Force
d)
Net Force
169.
Which of the following has a net force of 0 Newtons?
a)
An asteroid moving at a constant speed through space 
b)
A car accelerating from a stop sign
c)
A box of dishes falling from a counter 
d)
A rocket taking off 
170.
(T or F?) A balanced force is only an object that is not moving. 
a)
True 
b)
False
171.

To calculate net force you must

a)

Add the forces

b)

Subtract the forces

172.
Which could be an example of an unbalanced force?
a)
A plate sitting on a dining table
b)
A ball at the top of a hill that is not moving
c)
A soccer ball kicked in space, traveling at a constant speed
d)
A baseball that has just been thrown to home plate.
173.
When an object has a net for that is GREATER than 0 Newtons, the object is...
a)
balanced and still
b)
balanced and moving at a constant speed
c)
unbalanced and accelerating
d)
unbalanced and still
174.
Why does a book on a table not move?
a)
No forces are acting on the book
b)
Gravity is the only force acting on the book
c)
The forces of the table pushing up and gravity pulling down are balanced
175.

In a tug of war game, the NET FORCE is 50N to the LEFT. The winning team pulled with a force of 200N to the left. How much force did the losing team pull with?

a)

150N right

b)

250N right

c)

100N right

d)

50N right

176.
What is speed?
a)
how far you go
b)
how much distance is covered over a period of time
c)
how fast you accelerate
d)
the change in the location of a object
177.
What is the formula to calculate speed?
a)
Speed = time/distance
b)
Speed = distance/time
c)
Speed = distance x time
d)
Speed = time x distance
178.
Which of the following is a unit for acceleration?
a)
km/s
b)
m/s2
c)
mi/hr
d)
ft
179.
What is velocity?
a)
the quickness of an object
b)
the location of an object
c)
acceleration
d)
speed in a specific direction
180.
A measurement of how fast an object is moving
a)
Velocity
b)
Speed
c)
Vector
d)
Acceleration
181.
A description of the speed and direction of an object's motion
a)
Velocity
b)
Speed
c)
Acceleration
d)
Vector
182.
When a car goes around a corner at 20 mph, why do we say it  accelerates?
a)
The car is accelerating because of the velocity is constant
b)
The car accelerates because it's going 20 mph
c)
Cars always accelerate when they are in motion
d)
The car is accelerating because it's changing direction
183.
Why does a car accelerate as it round a corner at a constant speed?
a)
Its direction changes
b)
It doesn't
c)
It slows down
d)
Its speeds up  
184.
Acceleration only takes place when things speed up. 
a)
True
b)
False
185.
A roller coasters accelerates from an initial velocity of 6.0 m/s to a final velocity of 70 m/s over 4 seconds.  What's the acceleration?
a)
24 m/s2
b)
18 m/s2
c)
16 m/s2
d)
16 m/s
186.
A drag racer accelerated from 0 m/s to 200 m/s in 5 s.  What was the acceleration?
a)
0 m/s
b)
40 m/s2
c)
-40 m/s2
d)
40 m/s
187.
Acceleration can be classified as _______________
a)
Speeding up
b)
Slowing Down
c)
Changing directions
d)
All of the above
188.
a)
Object not moving
b)
Object accelerating
c)
Object slowing down
d)
Object at a constant speed
189.
a)

Green object is moving at a faster constant speed than Red

b)

Red object is moving at a faster constant speed than Green

c)

Green object is moving at a slower constant speed than Red

d)

Red object is moving 2 times faster than Green

190.
Which graph shows: A car travelling at a constant speed.
a)
A
b)
B
c)
C
d)
D
191.

Which graph represents slowing down?

a)

A

b)

B

c)

C

d)

D

192.
Which graph represents the greatest acceleration?
a)
A
b)
B
c)
C
d)
D
193.
The graph below represents
a)
Speed
b)
Velocity
c)
Acceleration
d)
Deceleration
194.
In which time interval was the object speeding up?   
a)
between 0 s and 2 s
b)
between 2 s and 4 s
c)
between 6 s and 8 s
d)
between 8 s and 10 s
195.
What is the person doing from 5 seconds to 10 seconds?
a)
Walking 
b)
Running
c)
Standing Still 
d)
Walking Fast
196.
88 m/s
a)
Speed
b)
Velocity
c)
Acceleration
197.
88 m/s north
a)
Speed
b)
Velocity
c)
Acceleration
198.
20 m/s west
a)
Speed
b)
Velocity
c)
Acceleration
199.
88 m/s2
a)
Speed
b)
Velocity
c)
Acceleration
200.
47 mph
a)
Speed
b)
Velocity
c)
Acceleration
201.
slow down
a)
Speed
b)
Velocity
c)
Acceleration
202.
increase speed
a)
Speed
b)
Velocity
c)
Acceleration
203.
turn left
a)
Speed
b)
Velocity
c)
Acceleration
204.
speed with direction
a)
Speed
b)
Velocity
c)
Acceleration
205.
change in velocity
a)
Speed
b)
Velocity
c)
Acceleration
206.
72 m/s
a)
Speed
b)
Velocity
c)
Acceleration
207.
Traveling a certain distance in a specific amount of time (ex. m/s)
a)
Speed
b)
Velocity
c)
Acceleration
208.
Traveling a certain distance in a certain amount of time in a given direction (ex. m/s north)
a)
Speed
b)
Velocity
c)
Acceleration
209.
An increase or decrease in speed (m/s2), changing direction, or changing speed and direction
a)
Speed
b)
Velocity
c)
Acceleration
210.
A child rides their bike around the block.
a)
Speed
b)
Velocity
c)
Acceleration
211.
A dog runs on the sidewalk at 9 mi/hr.
a)
Speed
b)
Velocity
c)
Acceleration
212.
While going to school, a student walks an average of 5 km/hr west for 12 blocks.
a)
Speed
b)
Velocity
c)
Acceleration
213.
While on a trip, a family travels east from San Antonio to Houston going 70 mph.
a)
Speed
b)
Velocity
c)
Acceleration
214.
Some motorcycles can go from 0 mi/hr to 60 mi/hr in under 4 seconds.
a)
Speed
b)
Velocity
c)
Acceleration
215.
Jacob ran a 5k in 24 minutes.
a)
Speed
b)
Velocity
c)
Acceleration
216.
An airplane travels 1260 km from San Francisco northeast to Chicago in 3.5 hours.
a)
Speed
b)
Velocity
c)
Acceleration

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