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Worksheets

10 Chemistry and Physics

Total questions: 194

Worksheet time: 20hrs 3mins

Name
Class
Date
1.
What coefficient should be used to make the following equation balanced?
N2+O2--> _NO 
a)
1
b)
2
c)
3
d)
4
2.

Which equation is balanced?

a)

PbO2 + 2H2

b)

SO2 + H20 --> H2SO4

c)

2Na + 2H2O --> 2NaOH + H2

3.
How many HCl molecules do you need to balance this equation? 
Mg +  __HCl --->  MgCl2 + H2
a)
1
b)
2
c)
3
d)
4
4.

What law governs the balancing of chemical equations?

a)

Law of Energy

b)

Law of Conservation of Matter/Mass

c)

Law of Gravity

d)

Law of Matter Movement

5.
What is the total number of atoms present in 5Na3PO4
a)
5
b)
40
c)
55
d)
8
6.

Balance this equation

_Al +_HCl --> _H2 +_AlCl3

a)

2,6,3,2

b)

it's already balanced

c)

4,12,3,4

d)

2,1,4,5

7.

What are the coefficients that would properly balance this equation?

__Ca + __H2O --> __Ca(OH)2 + __H2

a)

2,1 --> 2,1

b)

1,2 --> 1,1

c)

1,2 --> 2,4

d)

1,2 --> 2,1

8.
What is the right ratio of chemicals for the BCE (Balanced Chemical Equation)?__CO + __Fe2O3--> __Fe + __CO2
a)
3,1 --> 2,3
b)
3,2 --> 1,1
c)
3,2 --> 2,4
d)
3,2 --> 2,1
9.

What are the coefficients that would properly balance this equation?

__AgNO3 + __H2S --> __Ag2S+ __HNO3

a)

2,1 --> 1,2

b)

1,2 --> 1,1

c)

1,2 --> 1,2

d)

1,2 --> 2,1

10.

What are the coefficients that would properly balance this equation?

__H2 + __S --> __H2S

a)

1,1 --> 1

b)

2,2 --> 2

c)

1,2 --> 1

d)

1,2 --> 2

11.

What are the coefficients that would properly balance this equation?

__Al + __O2--> __Al2O3

a)

4,1 --> 2

b)

4,3 --> 4

c)

3,4 --> 1

d)

4,3 --> 2

12.
What is the total number of atoms present in 5Na3PO4
a)
5
b)
40
c)
55
d)
8
13.

Determine the coefficients to make the following equation balanced?

__N2 + __O2--> __NO

a)

1, 1, 1

b)

1, 1, 2

c)

2, 2, 2

d)

1, 2, 2

14.

Determine the coefficients to balance the equation.

__Al +__HCl --> __H2 +__AlCl3

a)

2,6,3,2

b)

it's already balanced

c)

4,12,3,4

d)

2,1,4,5

15.

Balance the the following equation.

__Zn+__HCl -->__ZnCl2 +__H2

a)

1,1,2,1

b)

1,1,1,2

c)

1,2,1,1

d)

2,1,1,1

16.
Which number should go in the blank?
Mn + _ HNO3 → Mn(NO3)2 + H2
a)
1
b)
2
c)
3
d)
0
17.
Which number should go in the blank?
Al(NO3)3 + _  NaOH -> Al(OH)3 + 3 NaNO3
a)
1
b)
2
c)
3
d)
0
18.
The numbers needed to balance the equation are:
a)
1, 1, 1, 2
b)
1, 1, 2, 2
c)
1, 1, 1, 1
d)
2, 3, 1, 3
19.
The numbers needed to balance the equation are:
a)
2, 7, 6, 4
b)
2, 1, 3, 2
c)
1, 1, 3, 2
d)
2, 3, 1, 3
20.
The numbers needed to balance the equation are:
a)
2, 7, 6, 4
b)
2, 1, 3, 2
c)
3, 1, 1, 3
d)
2, 3, 1, 3
21.

Increase in temperature causes the particles to

a)

slow down

b)

move faster

c)

stay apart from each other

d)

move in the correct order

22.

Why does a higher concentration increase the rate of reaction?

a)

it increases the amount of reactants

b)

it lowers the activation energy

c)

it increases the energy of reactant particles

d)

it increases the frequency of collision

23.

Why does a higher temperature increase the rate of a reaction?

a)

It increases both the frequency collision and energy of reactant particles

b)

It only increases the frequency of collision

c)

It only increases the energy of reactant particles

d)

It reduces the activation energy of the reaction

24.
What is the rate of reaction?
a)
How fast a reaction is 
b)
How big a reaction is
c)
How loud a reaction is
d)
How much gas a reaction produces
25.

Grinding an effervescent tablet into powder increases the rate of reaction due to increase of

a)

concentration

b)

total surface area

c)

temperature

d)

size

26.

Which factors increase the rate of a reaction?

a)

increasing temperature

b)

increasing concentration

c)

increasing total surface area

d)

All of these

27.

Increasing pressure causes the reacting particles

a)

to bond together

b)

to repel from each other

c)

gain more kinetic energy

d)

to move closer together

28.

Increasing the temperature gives particles more __________.

a)

time

b)

energy

c)

space

d)

frequency

29.

As the frequency of ________________ collision increases, the rate of reaction increases.

a)

time

b)

speed

c)

effective

d)

efficient

30.

You add more bodies into a "mosh pit" to hope for more collisions. You have increased

a)

temperature

b)

concentration

c)

pressure

d)

catalyst

31.

Why does a higher concentration increase the rate of reaction?

a)

it increases the amount of reactants

b)

it lowers the activation energy

c)

it increases the energy of particle collisions

d)

it increases the frequency of collisions

32.
the starting materials in a chemical reaction
a)
Products
b)
Reactants
c)
Starters
d)
Enders
33.
a substance that is formed as the result of a chemical reaction
a)
Product 
b)
Reactant
c)
Starters
d)
Enders
34.
A charged particle that has gained or lost electrons is called a _____.
a)
molecule
b)
ion
c)
isotope
d)
element
35.

Nitrogen, N, will form which of the following ions?

a)

N

b)

N-3

c)

N-5

d)

N+5

36.
Write the correct chemical formula for Ag +  and  Br -
a)
AgBr
b)
silver bromide
c)
Ag2Br2
d)
gold bromide
37.
Write the correct formula for an ionic compound formed from S2- and Rb1+.
a)
SRb2
b)
SRb
c)
Rb2S
d)
RbS2
38.

What will be the charge of a bromine ion?

a)

+7

b)

-7

c)

-1

d)

+1

39.
What molecule is this?
a)
CO
b)
CO2
c)
C2O
d)
C2O2
40.
What region of the periodic table contains atoms that form covalent bonds?
a)
the left side
b)
the middle
c)
the right side
d)
top left
41.
In chemical compounds, covalent bonds form when
a)
the electronegativity difference between two atoms is very large.
b)
electrons are completely transferred between two metals.
c)
pairs of electrons are shared between two nonmetal atoms.
d)
two nonmetal atoms are attracted to each other by opposite charges.
42.
Which of the following is an example of an IONIC COMPOUND?
a)
NaCl
b)
H2O
c)
CO2
d)
NO
43.
Which of the following is an example of a COVALENT COMPOUND?
a)
H2S
b)
KI
c)
CaCl2
d)
MgO
44.
Name this compound: LiO
a)
lithium oxide
b)
oxygen monolithium
c)
monolithium dioxide
d)
dilithium dioxide
45.
What charge does a potassium (K) ion have?
a)
+1
b)
-1
c)
+2 
d)
-2
46.
What is the right ratio of chemicals for the BCE (Balanced Chemical Equation)?__Na + __H2O --> __NaOH + __H2
a)
2,2 --> 2,1
b)
4,4 --> 4,1
c)
1,2 --> 2,4
d)
1,2 --> 2,1
47.

What criteria must be met for reactant collisions to result in a successful product?

a)

The reactants must collide with each other

b)

The reactants must collide with enough energy and be in the right positions

c)

The reactants must have enough energy to form the activated complex

48.

What is the chemical symbol for Hydrogen

a)

H

b)

He

c)

Hy

d)

Hg

49.

What element has the symbol Al

a)

Argon

b)

Aluminium

c)

Silver

d)

Gold

50.

What is the symbol for Carbon

a)

Ca

b)

C

c)

Co

d)

Cr

51.

What is the symbol for Neon

a)

No

b)

Nn

c)

Ne

d)

N

52.

What is the symbol for Potassium

a)

P

b)

Po

c)

K

d)

Pt

53.

Which element has the symbol Cl

a)

Carbon

b)

Chlorine

c)

Cadium

d)

Copper

54.

What is the symbol for Sodium

a)

S

b)

Au

c)

So

d)

Na

55.

What is the symbol for Magnesium

a)

Mn

b)

Mc

c)

Mg

d)

Md

56.

What is the symbol for Zinc?

a)

Z

b)

Zi

c)

ZN

d)

Zn

57.

What is the symbol for Iron?

a)

Ir

b)

In

c)

Fe

d)

FE

58.
the central region of an atom where its neutrons and protons are is its 
a)
nucleus 
b)
electron cloud
c)
core 
d)
center 
59.
Particles in an atom that are neutral and have no charge are 
a)
negatrons 
b)
electrons 
c)
neutrons 
d)
protons 
60.

The positive parts of an atom are 

a)
electrons 
b)
positrons 
c)
neutrons 
d)
protons 
61.
electrons have this type of charge?
a)
negative
b)
positive
c)
neutral
62.
How does the size of a proton compare to the size of a neutron?
a)
larger
b)
smaller
c)
equal
63.
These particles orbit around the nucleus of an atom.  What are they called?
a)
electrons
b)
protons
c)
neutrons
d)
photons
64.
An atom with atomic number 6 would have how many protons 
a)
6
b)
12
c)
3
d)
cannot be determined 
65.
True or False? Neutrons have a negative charge
a)
True
b)
False
66.
What is the atomic number for an element with three protons?
a)
2
b)
1
c)
3
d)
6
67.
What is the number of protons that the element in this image contain?
a)
14
b)
7
c)
15
d)
18
68.

A helium atom has 2 protons. It has an atomic mass of 4. How many neutrons does it have?

a)

2

b)

4

c)

6

d)

8

69.

A phosphorus atom has 15 protons. It has a mass number of 31. How many neutrons does it have?

a)

15

b)

16

c)

31

d)

6

70.

True or false: The mass number is the number of protons + the number of neutrons.

a)

True

b)

False

71.

A sodium atom has 11 protons. It has a mass number of 23. How many neutrons does it have?

a)

11

b)

23

c)

12

d)

5

72.

A berilium atom has 4 protons. It has a mass number of 9. How many neutrons does it have?

a)

5

b)

4

c)

9

d)

8

73.

A mercury atom has 80 protons. It has a mass number of 201. How many neutrons does it have?

a)

201

b)

121

c)

80

d)

281

74.

A calcium atom has 20 protons. It has a mass number of 40. How many neutrons does it have?

(a)  

75.

The atomic number of nitrogen is 7. Its mass number is 14. How many neutrons does it have?

a)

7

b)

48

c)

14

d)

4

76.

If an element has 5 protons and 9 neutrons, what is its mass number?

a)

14

b)

5

c)

9

d)

2

77.

If an element has 17 protons and 20 neutrons, what is its mass number?

a)

17

b)

10

c)

20

d)

37

78.

If an element has 1 proton and 0 neutrons, what is its mass number?

a)

0

b)

1

c)

2

d)

3

79.

If an element has 10 protons and 12 neutrons, what is its mass number?

(a)  

80.
What is the electron configuration of sodium?
a)
2.8
b)
2.8.2
c)
2.8.1
d)
11
81.
What is the electron configuration of calcium?
a)
2.8.8.2
b)
2.8.10
c)
20
d)
2.18.2
82.
Which element has an electron configuration of 2.5?
a)
Oxygen
b)
Nitrogen
c)
Phosphorus
d)
Carbon
83.
Which element has an electron configuration of 2.8.8?
a)
Lead
b)
Flourine
c)
Neon
d)
Argon
84.
What is the electron configuration of Aluminium?
a)
2.8.3
b)
2.11
c)
13
d)
2.8.2
85.
What is the electron configuration of chlorine?
a)
17
b)
2.7
c)
2.8.7
d)
2.8.4
86.
Which element has the electron configuration of 2.8.2?
a)
Magnesium
b)
Sodium
c)
Sulfur
d)
Arsenic
87.
Which element has the electron configuration of 2.8.4?
a)
Neon
b)
Boron
c)
Gallium
d)
Silicon
88.
What is the electron configuration of beryllium?
a)
2.2
b)
2.4
c)
4
d)
6
89.
Which element has the electron configuration of 2.7?
a)
Krypton
b)
Iodine
c)
Flourine
d)
Barium
90.

What reaction has the following general formula:

A + CD --> C + AD

a)

Combination

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

91.

What reaction has the following general formula:

AB --> A + B

a)

Combination

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

92.

What reaction has the following general formula:

A + B --> AB

a)

Combination

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

93.

What reaction has the following general formula:
CxHy + O2 −>CO2 + H2OC_xH_y\ +\ O_2\ ->CO_{2\ }+\ H_2O  

a)

Combination

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

94.

What is the general reaction scheme for a single replacement reaction?

a)

A + B --> AB

b)

AB --> A + B

c)

A + CD --> C + AD

d)

AB + CD --> CB + AD

e)

CxHy+O2 −> CO2+H2OC_xH_y+O_2\ ->\ CO_2+H_2O

95.

What is the general reaction scheme for a combustion  reaction?

a)

A + B --> AB

b)

AB --> A + B

c)

A + CD --> C + AD

d)

AB + CD --> CB + AD

e)

CxHy+O2 −> CO2+H2OC_xH_y+O_2\ ->\ CO_2+H_2O

96.

What is the general reaction scheme for a combination reaction?

a)

A + B --> AB

b)

AB --> A + B

c)

A + CD --> C + AD

d)

AB + CD --> CB + AD

e)

CxHy+O2 −> CO2+H2OC_xH_y+O_2\ ->\ CO_2+H_2O

97.

What is the general reaction scheme for a double replacement reaction?

a)

A + B --> AB

b)

AB --> A + B

c)

A + CD --> C + AD

d)

AB + CD --> CB + AD

e)

CxHy+O2 −> CO2+H2OC_xH_y+O_2\ ->\ CO_2+H_2O

98.

What type of reaction is the following:
BaCl2+2KI −> 2KCl + BaI2BaCl_2+2KI\ ->\ 2KCl\ +\ BaI_2  

a)

Combination

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

99.

What type of reaction is the following:
2KI −> 2K + I22KI\ ->\ 2K\ +\ I_2  

a)

Combination

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

100.

What type of reaction is the following:
C11H24+17O2−> 11CO2 + 12H2OC_{11}H_{24}+17O_2->\ 11CO_2\ +\ 12H_2O  

a)

Combination

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

101.

What type of reaction is the following:
2NaHCO3−> Na2CO3+CO2+H2O2NaHCO_3->\ Na_2CO_3+CO_2+H_2O  

a)

Combination

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

102.

What type of reaction is the following:
Zn + 2HCl −> ZnCl2+H2Zn\ +\ 2HCl\ ->\ ZnCl_2+H_2

a)

Combination

b)

Decomposition

c)

Single Replacement

d)

Double Replacement

e)

Combustion

103.
How are elements on the periodic table arranged by?
a)
in alphabetic order
b)
simular physical & chemical properties
c)
their symbols
d)
Just simular physical properties
104.
Each column in the periodic table is called a _________ .
a)
period
b)
group
c)
cluster
d)
unit
105.
Two elements chemically bonded form
a)
element
b)
compound
c)
mixture
d)
solutions
106.
Periods on the periodic table are __________.
a)
Horizontal Rows
b)
Vertical Columns
107.
Groups on the periodic table are __________.
a)
Horizontal Rows
b)
Vertical Columns
108.

The Atomic number is known as the _______

a)

Number of electrons in an atom

b)

Number of Protons in an atom

c)

Number of neutrons in an atom

d)

Number of Protons and electrons in an atom

109.

What charge do protons have?

a)

Positive

b)

Negative

c)

Neutral

110.

What is Atomic Mass Number ?

a)

Number of Protons

b)

Number of Neutrons

c)

Number of Protons and Neutrons

d)

Number of Protons and Electrons

111.

The number of electrons in an atom is equal to the...

a)

Atomic number

b)

Protons

c)

Atomic Mass

d)

Neutrons

112.

The formula used to calculate the number of neutrons is:

a)

Mass Number - Atomic Number

b)

Protons + Electrons

c)

Atomic Number - Mass Number

d)

Protons x2

113.

How many periods are on the periodic table?

a)

5

b)

6

c)

7

d)

8

114.

Elements in the same group have : (2 correct answers)

a)

Similar chemical properties

b)

Similar names

c)

Same number of outer (valence) electrons)

d)

The same number of protons

115.
"For every action, there is an equal and opposite reaction."
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
d)
Newton's 4th Law
116.
Force = Mass x Acceleration
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
d)
Newton's 4th Law
117.
The tendency of an object to resist changes in its motion is...
a)
inertia
b)
force
c)
acceleration
d)
velocity
118.
Any push or pull on an object.
a)
force
b)
velocity 
c)
inertia
d)
momentum
119.
The force that opposes motion between two surfaces in contact with each other.
a)
inertia
b)
friction
c)
momentum
d)
gravity
120.
A force that opposes motion between a surface in contact with the atmosphere.
a)
air resistance
b)
gravity
c)
momentum
d)
terminal velocity
121.
The combination of all the forces acting on an object is the...
a)
net force
b)
action force
c)
reaction force
d)
balance force
122.

An archer pulls the bowstring back, then releases the string and the arrow flies forward. Pulling the string back is the...

a)

action force

b)

reaction force

c)

net force

d)

inertia

123.

When two equal forces act in opposite directions on an object, they are called ______________________.

a)

frictional force

b)

balanced force

c)

centripetal force

d)

gravitational force

124.

When an unbalanced force acts on an object, the force ______________________.

a)

changes the motion of the object

b)

is cancelled by another force

c)

does not change the motion of an object

d)

is equal to the weight of the object

125.
An automobile you are riding in suddenly stops, but you continue to go forward.
a)
Newton's
1st
Law of Motion
b)
Newton's
2nd
Law of Motion
c)
Newton's
3rd
Law of Motion
126.
You push against a wall and the wall is pushing back on you.
a)
Newton's
1st
Law of Motion
b)
Newton's
2nd
Law of Motion
c)
Newton's
3rd
Law of Motion
127.

What is the acceleration of a 50 kg object pushed with a force of 500 newtons?

a)

100 m/s2

b)

25,000 m/s2

c)

10 m/s2

d)

25 m/s2

128.

A cannonball with a mass of 0.5 kg is flying at an acceleration of 10 m/sec/sec. What is its force?

a)

50 Newtons

b)

5 Newtons

c)

20 Newtons

d)

9.5 Newtons

129.
Which force produces a change in motion?
a)
unbalanced force
b)
balanced force
c)
gravitational force
d)
frictional force
130.
A crumpled piece of paper hits the ground before a flat sheet of paper because
a)
the acceleration of gravity is greater on the  crumpled paper.
b)
there is more air resistance against the flat paper.
c)
the crumpled paper is more massive
d)
the crumpled paper is less massive.
131.
A sled sliding on a flat, icy surface with a constant velocity is best described by
a)
Newton’s first law of motion for objects at rest.
b)
Newton’s first law of motion for objects in motion.
c)
Newton’s second law of motion.
d)
Newton’s third law of motion.
132.
Which of the following explains the difference between speed and velocity?
a)
One has motion, and the other does not.
b)
One has direction, and the other does not.
c)
One involves time, and the other does not.
d)
One involves acceleration, and the other does not.
133.
The gravitational force of any object near Earth's surface is ____.
a)
unknown
b)
friction
c)
Newton's first law
d)
9.8 m/s2
134.
A magician pulls a tablecloth out from under dishes and glasses on a table without disturbing them.
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
d)
None of them
135.

An example of scalar magnitude is _____.

a)

velocity

b)

mass

c)

acceleration

d)

force

136.

Which statement describes a scalar?

a)
It has magnitude but no direction
b)
It has direction but no magnitude
c)
It has both direction and magnitude
d)
It has constant magnitude but no
 direction
137.
Find the distance Sara walks from A to B,  B to C then C to D?
a)
11m
b)
3m
c)
5m
d)

8m

138.

Distance and direction of an object's change in position from a starting point is called _____.

a)
displacement
b)
distance
c)
motion
d)
reference point
139.

Speed in a specific direction is called _____.

a)

velocity

b)

motion

c)

position

d)

displacement

140.

Is this a scalar quantity or a vector quantity?

A deer running 15 meters per second due west.

a)
Scalar
b)
Vector
141.

Is this a scalar quantity or a vector quantity?

Wind blowing at 20 m/s.

a)
Scalar
b)
Vector
142.
The _______ of two or more vectors is the sum of the vectors.
a)
components
b)
scalar
c)
resultant
d)
magnitude
143.
Which of the following quantities are vectors?
a)
speed, velocity, acceleration
b)
velocity, acceleration, force
c)
force, acceleration, mass
d)
length, mass, time
144.
Which of these is not a vector quantity? 
a)
displacement 
b)
time
c)
velocity 
d)
acceleration
145.
Which statement describes a vector?
a)
It has magnitude but no direction
b)
It has direction but no magnitude
c)
It has both direction and magnitude
d)
It has constant magnitude but no
 direction
146.
Which of the following could never be negative?
a)
a distance
b)
a velocity
c)
a displacement
d)
a vector
147.

The students are arguing over the differences between speed and velocity. One student says, “Speed is a vector because it describes how fast an object traveling. Velocity is a scalar because it tells how fast and what direction an object is traveling.” Which of the following statements is correct?

a)

The students' understanding of all four terms (speed, velocity, scalar, and vector) is correct.

b)

The students' understanding of all four terms (speed, velocity, scalar, and vector) is incorrect.

c)

The students' understanding of speed and velocity is incorrect but their

understanding of scalar and vector is correct.

d)

The students’ understanding of speed and velocity is correct but their understanding of scalar and vector is incorrect.

148.

How do scalars and vectors differ?

a)

scalers have units

b)

scalers have direction

c)

vectors have units

d)

vectors have direction

149.

7. For winter, a duck flies 10 m/s due to south against a gust of wind with a speed 2.5 m/s. What is the resultant velocity of the duck?

a)

7.5 m/s, north

b)

12.5 m/s, south

c)

7.5 m/s, south

d)

12.5 m/s, north

150.

What is the resultant force?

a)

40 N left

b)

0 N Balalnced

c)

400 N right

d)

40 N right

151.
How will this object move? 
a)
It won't move. 
b)
It will move to the right. 
c)
It will move to the left. 
d)
It will move in both directions. 
152.

What is the resultant/ net force?

a)

400 N Up

b)

400 N Down

c)

- 400 N Down

d)

800 N Down

153.

What is the resultant force?

a)

17 N, Left

b)

6N, Right

c)

None of the above

d)

11N, Left

154.
What is the net force?
a)
5.5 N left
b)
5.5 N right
c)
2.5 N left
d)
2.5 N right
155.

a force exerted by an object with mass to

another object with mass. It is also called as gravity.

(a)  

156.

What is force in physics?

a)

A power in star wars

b)

A push or pull on an object

c)

A stop on an object

d)

The start of an object

157.

What can force do to an object?

a)

Accelerate an object

b)

Slow down an object

c)

Have the object remain in place

d)

Have the object change shape

e)

All of the above

158.

What is the measure of force?

a)

Newtons

b)

Light years

c)

Inches

d)

Gallons

159.

What is the unit for FORCE?

a)

N (Newtons)

b)

lbs (pounds)

c)

g (grams)

d)

m/s (meters per second)

160.
If these boys are pulling with the same amount of force.  What will happen?
a)
The boy in blue will win.
b)
They will not move at all.
c)
The boy in red will win.
d)
Both will fall down.
161.
What force holds the planets in motion around the sun?
a)
Magnetic
b)
Electrical
c)
Gravitational
d)
Air Resistance
162.
Jupiter has about 317 times more mass than Earth. What can you infer from this fact? 
a)
That Jupiter’s gravitational force is much weaker than on Earth’s gravitational force.
b)
That Jupiter’s gravitational force is much stronger than Earth’s gravitational force.
c)
That Jupiter’s and Earth’s gravitational forces are equal.
d)
Mass has no effect on the gravitational force between two objects
163.
This type of force resist motion between two surfaces that are pressed together
a)
contact
b)
gravity
c)
friction
164.

What type of force was at work in the parachute?

a)

elastic spring force

b)

frictional force (air resistance)

c)

magnetic force

d)

gravitational force

165.
a)
Balanced
b)
Unbalanced
166.
a)
Balanced
b)
Unbalanced
167.

___________ is an opposing force that makes objects in motion slow down.

a)

force

b)

speed

c)

friction

d)

mass

168.

The girls in this picture represent ________ forces (or 2 objects in equilibrium). 

a)
kinetic
b)
balanced
c)
unbalanced
d)
chemical
169.
What will cause an object to move?
a)
Applied forces
b)
Balanced forces
c)
Unbalanced forces
170.
With unbalanced forces, the object will move in the direction of the _______ force.
a)
larger 
b)
smaller 
c)
equal 
171.

Balanced Force

a)

When forces are balanced, there is no change in motion

b)

When two forces act upon each other in opposite directions, and they are both the same size.

c)

Equal in size and opposite in direction

d)

Occurs when objects change in motion and can happen in two different ways.

172.

Which image is an example of a balanced force?

a)

Image 1

(Top Image)

b)

Image 2

(Bottom Image)

173.

Which boy will have an easier time getting down the hill?

a)

Boy A , because he is experiencing less friction than boy B.

b)

Boy B, because he is experiencing more friction than boy A.

174.

How does the mass of an object affect it's motion?

a)

It has no effect

b)

The less the mass the less effect a force will have

c)

The greater the mass the greater the effect a force will have

d)

The greater the mass the less effect a force will have

175.

What is acceleration?

a)

Constant velocity

b)

The rate at which the velocity of an object changes

c)

Displacement/Time

d)

When an object slows down

176.

The average speed of a car that travels 180km in 3 hours is

a)

50km/h

b)

55km/h

c)

60km/h

d)

65km/h

177.

If a person walks 50km North and 50km South, what is the total distance covered?

a)

0km

b)

50km

c)

100km

d)

150km

178.

If a person walks 50km North and 50km South, what is the final displacement?

a)

0km

b)

50km South

c)

100km North

d)

150km North

179.

Which object is travelling faster?

a)

Top

b)

Bottom

c)

Both are travelling the same speed

180.

The bottom ticker tape shows an object

a)

Not moving

b)

Travelling at a constant speed

c)

Accelerating

d)

Decelerating

181.

What is the object doing between 0-10s?

a)

Moving north

b)

Moving South

c)

Stationary

182.

What is the overall distance travelled by the car?

a)

60m

b)

0m

c)

200m

d)

40m south

183.

What is the final displacement of the car?

a)

60m

b)

0m

c)

200m

d)

40m south

184.

What is the velocity of the car between 40-55s

a)

6m/s North

b)

0m/s South

c)

4m/s South

d)

2.66m/s North

185.

An athlete runs a marathon (42.2km) with a speed of 10km/h. How long did they take to complete the marathon?

a)

2.44h

b)

4.44h

c)

4h

d)

4.22h

186.

A car speeds up to 60km/h from rest in 5 seconds. Calculate its average acceleration in km/h/s

a)

60km/h/s

b)

5km/h/s

c)

12km/h/s

d)

300km/h/s

187.

An object accelerations at 10km/h^2 for a period of 12 minutes. If it was originally stationary, what is the final velocity?

a)

10km/h

b)

12km/h

c)

0km/h

d)

2km/h

188.

What is the formula for velocity?

a)

v = s/t

b)

a = (v-u)/t

c)

F = ma

d)

F = mg

189.

What is the formula for acceleration?

a)

v = s/t

b)

a = (v-u)/t

c)

F = ma

d)

F = mg

190.

What is the symbol for displacement?

a)

d

b)

s

c)

v

d)

t

191.

The gradient (or slope) of a displacement time graph gives

a)

velocity

b)

displacement

c)

time

d)

space

192.

'v' in the formula for acceleration is

a)

Final velocity

b)

Initial velocity

c)

Acceleration

d)

Time

193.

'u' in the formula for acceleration is

a)

Final velocity

b)

Initial velocity

c)

Acceleration

d)

Time

194.

If an object has negative acceleration it is

a)

A calculation error

b)

Accelerating

c)

Decelerating

d)

Maintaining constant velocity

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