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CBA2 Review

Total questions: 133

Worksheet time: 33hrs 15mins

Name
Class
Date
1.

Elements that are mostly shiny, silver or gray in color, malleable, ductile, and good conductors of heat and electricity are referred to as _______________.

a)

Metals

b)

Nonmetals

c)

Metalloids

d)

Conductor

2.

A(n) _______________ is a material that allows electricity and heat to pass through it easily.

a)

Ductility

b)

Nonmetals

c)

Conductor

d)

Insulator

3.

Chlorine (Cl) is a yellow-green gas at room temperature. Based only on this information, where would you expect to find this element on the Periodic Table?

a)

Left side

b)

Right side

c)

At the top

d)

At the bottom

4.

Which of the following elements could be the possible identity of Mystery Element 2?

a)

Aluminum (Metal)

b)

Fluorine (Non-Metal)

c)

Germanium (Metalloid)

d)

none

5.

Which of the following elements could be the possible identity of Mystery Element 1?

a)

Magnesium (Metal)

b)

Carbon (Non-Metal)

c)

Boron (Metalloid)

d)

none

6.

Which element is a metalloid?

a)

Titanium

b)

Selenium

c)

Potassium

d)

Polonium

7.

Which elements are found on the right side of The Periodic Table?

a)

Metals

b)

Nonmetals

c)

Metalloids

d)

Water

8.

How do metals differ from nonmetals?

a)

metals are shiny, nonmetals are dull

b)

metals are good insulators, nonmetals are good conductors

c)

metals are powdery

d)

nonmetals are shiny

9.

When an object changes shape when struck by a hammer it is said to be...

a)

luster

b)

malleable

c)

brittle

d)

ductile

10.

Metalloids _____________

a)

have no properties of metals.

b)

have no properties of nonmetals.

c)

have some properties of both metals and nonmetals.

d)

none of the above

11.

Iron is a good conductor, malleable and magnetic. What type of element is Iron? 

a)

Metal

b)

Nonmetal

c)

Metalloid

d)

Pretty

12.

Which of the following is a property of a non-metal?

a)

Conducts electricity and heats well

b)

Can be hammered into thin sheets

c)

Is brittle and breaks easily

d)

Has a shiny, metallic luster

13.

A student tests an unknown substance that he or she believes to be a metal. Which of the following observations would indicate that the unknown substance is a metal?

a)

It is a good conductor of electricity

b)

It is very brittle and breaks easily

c)

It can easily float in water

d)

It is brown and dull.

14.

Arsenic is a metalloid. Which of the following best describes arsenic?

a)

Arsenic is like a nonmetal because it is a gas at room temperature but like a metal because it is not malleable.

b)

Arsenic is like only a nonmetal because it is a good conductor and is reflective.

c)

Arsenic is like only a metal because it is not ductile and is a gas at room temperature.

d)

Arsenic is like a nonmetal because it is brittle but like a metal because it conducts heat and electricity well

15.

Metalloids such as silicon and boron

a)

Always conducts electricity.

b)

May contain characteristics of metals and nonmetals.

c)

Always have a metallic luster and are malleable.

d)

Are all brittle and ductile.

16.

Metalloids tend to be

a)

Good semiconductors only when they are mixed with nonmetals.

b)

Good semiconductors.

c)

Poor semiconductors only when they are mixed with metals.

d)

Poor semiconductors

17.

What does the number 3 represent in 4NH3?

a)

Subscript

b)

Superscript

c)

Coefficient

18.

What does the number 4 represent in 4NH3?

a)

Subscript

b)

Superscript

c)

Coefficient

19.

How many Nitrogen (N) atoms are in 4NH3?

a)

4

b)

1

c)

3

d)

12

20.

How many Hydrogen (H) atoms are in 4NH3?

a)

4

b)

1

c)

3

d)

12

21.

In the equation shown, what are the reactant(s)?

a)

N2 + H2

b)

NH3

22.

In the equation shown, what are the product(s)?

a)

N2 + H2

b)

NH3

23.

Is this equation balanced?

a)

Yes

b)

No

24.

Is this equation balanced?

a)

Yes

b)

No

25.

Is this equation balanced?

a)

Yes

b)

No

26.

To balance an equation you should:

a)

ONLY change subscripts.

b)

ONLY change coefficients.

c)

Change BOTH subscripts and coefficients.

27.

Is this equation balanced?

a)

yes

b)

no

c)

Not enough information

28.

No new substance is formed in a physical change.

a)

True

b)

False

29.

Chemical channges are ______________ chnages.

a)

Temporary

b)

Permanent

30.

What kind of change is breaking a window?

a)
b)
31.

Is sour milk a physical or chemical change?

a)

Physical

b)

Chemical

32.

Is melting iron a physical or chemical change?

a)

Physical

b)

Chemical

33.

Is digesting your food a physical or chemical change?

a)

Physical

b)

Chemical

34.

What kind of change is crushing a soda can?

a)
b)
35.

Is ice melting a physical or chemical change?

a)

Chemical

b)

Physical

36.

Is frying an egg a chemical or physical change

a)

Chemical

b)

Physical

37.

A chemical change

a)

changes the physical properties of an object, but does not create a new substance.

b)

creates a new substance and cannot be undone.

38.

Is this an example of a physical or chemical change?

a)

physical

b)

chemical

39.

Is this an example of a physical or chemical change?

a)

physical

b)

change

40.

Is this an example of a physical or chemical change?

a)

physical

b)

chemical

41.

Which of the following options provides evidence of a CHEMICAL change?

a)

Wood is burned releasing ash and smoke

b)

Rocks separate when soil is sifted

c)

Boiling water bubbles when heated

d)

Salt dissolves in water

42.

Which observations prove a chemical change occurred

a)

Dissolving and expected color change

b)

Mixing and dissolving

c)

State of matter change and boiling water bubbles

d)

Unexpected color change and temperature change

43.

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. 

44.

Forces that have a net force of zero ( the object is still).

a)

Balanced force

b)

Unbalanced force

45.

Balanced or unbalanced?

a)

balanced

b)

unbalanced

46.

A ____________ is a push or a pull on an object.

a)

friction

b)

force

c)

magnet

d)

gravity

47.

If these teams 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.

48.

Are the forces acting on the rope balanced or unbalanced?

a)

Balanced

b)

Unbalanced

49.

The forces balance each other.

a)

true

b)

false

50.

There is ___

a)

motion

b)

no motion

51.

When forces are acting in the same direction they should be added together.

a)

True

b)

False

52.

Forces that are acting in opposite directions should be subtracted from each other.

a)

True

b)

False

53.

The net force acting on the object is acting

a)

to the right

b)

up

c)

down

d)

to the left

54.

The net force acting on the object is (a)   N.

55.

Is it balanced?

a)

Yes

b)

No

56.

The net force is (a)   N.

57.

What force holds the planets in motion around the sun?

a)

magnetic

b)

electrical

c)

graviational

d)

air resistance

58.

If there are two forces going in the same direction how would you find net force?

a)

subtract

b)

add

c)

neither

d)

multiply

59.

With unbalanced forces, the object will move in the direction of the _________ force.

a)

larger

b)

smaller

c)

equal

60.

What is a force?

a)

the motion the object creates

b)

the object hitting one another

c)

the push or pull of an object

d)

really going fast

61.

What is the net force?

a)

20 N

b)

0 N

c)

400 N

d)

40 N

62.

What is the net force and direction?

a)

4 N to left

b)

4 N to right

c)

0 n to left

d)

4 N

63.

What is the net force and direction?

a)

4 N to left

b)

4 N to right

c)

0 N

d)

0 N to right

64.

What is the net force and direction?

a)

4 N to left

b)

4 N to right

c)

0 N

d)

0 N to right

65.

What is the net force and direction?

a)

3 N to left

b)

3 N

c)

0 N

d)

3 N to right

66.

What is the net force and direction?

a)

5 N to left

b)

7 N

c)

2 N to right

d)

5 N to right

67.

What is the net force and direction?

a)

1 N to left

b)

5 N to left

c)

1 N to right

d)

4 N to right

68.

Which law of motion says that you must push or pull objects harder if they have more mass?

a)

1st

b)

2nd

c)

3rd

d)

4th

69.

Which law of motion says that for anything to move you must apply an unbalanced force to it?

a)

1st

b)

2nd

c)

3rd

d)

5th

70.

Which is newtons first law states

a)

An object at rest will remain at rest unless a force is applied

b)

An object is moving

c)

An object has stopped

d)

An moving object will keep going when a force is applied to it

71.

Which is newtons 3rd law

a)

for every thing there is reaction

b)

for every reaction there is a unusual action

c)

For every reaction there is an equal and opposite reaction

d)

for every reaction there is an good action

72.

Newton's third law states that any action will have a(n) _______ and ______ reaction

a)

equal and same

b)

equal and opposite

c)

equal and equal to

73.

The tendency of objects to resist a change in motion is called:

a)

Friction

b)

Inertia

c)

Gravity

d)

Velocity

74.
a)
1st
b)
2nd
c)
3rd
d)
law of motion
75.
A person not paying attention while skateboarding hits a rock. The skateboard stops...they don't.
a)
The Law of Inertia (1st law)
b)
The Law of Acceleration (2nd law)
c)
The Law of Conservation of Momentum
d)
Action Reaction Law (3rd law)
76.
What Unit do we Measure Force in? 
a)
Newtons
b)
Joules
c)
Force
d)
Kilograms
77.
A 20 kg bike accelerates at 10 m/s2.  what was the force
a)
25 Newtons
b)
20 Newtons
c)
200 Newtons
d)
10 Newtons
78.
What is the net force?
a)
5 N
b)
45 N to the left
c)
5 N to the right
d)
45 N to the right
79.
Calculate the net force shown in the  diagram?
a)
41 N
b)
25 N
c)
16 N
d)
9 N
80.
Calculate the net force shown in the  diagram?
a)
6 N
b)
0 N
c)
3 N
d)
9N
81.
If Justin races his Chevy S-10 at the track for 2,560 meters in 60 seconds, what is his average speed?
a)
0.023 m/s
b)
153,600 m/s
c)
42.7 m/s
d)
60 m/s
82.
What is the speed of a car that traveled 32 m in 2 seconds?
a)
64 m/s
b)
34 m/s
c)
16 m/s
d)
0.0625 m/s
83.

Bob ran the 50 meter dash. It took him 6.3 seconds. What was his average speed in meters/second?

a)

7.9 m/s

b)

0.1 m/s

c)

50 m/s

84.
What is the speed of a car that travels 400 m in 20 minutes?
a)
20 mi/hr
b)
20 m/min
c)
800 m/min
d)
200 mi/hr
85.

Match the description to the graph:

"The car is traveling at a constant speed."

a)
b)
c)
86.

Segment A-B The bus is _________________.

a)

at rest

b)

returning (to original position)

c)

moving forward

87.
What two measurements are necessary for calculating speed?
a)
Mass and time
b)
Temperature and mass
c)
Mass and distance
d)
Distance and time
88.

Which is faster?

a)

walking

b)

skating

c)

biking

89.

Which scene matches the graph?

a)

Jonathon walked to his girlfriends house - stayed a while then walked home

b)

Justice rode her bike to the mall

c)

Yeshua walked home from school

90.
What does this graph represent?
a)
Constant Speed
b)
Acceleration
c)
Not moving
91.
How long did it take this object to travel back to its reference/starting point?
a)
20 s
b)
30 s
c)
60 s
d)
100 s
92.
At 60 seconds, how far had this object traveled? 
a)
0 m
b)
10 m
c)
20 m
d)
40 m
93.
What does this graph represent?
a)
Constant speed
b)
Acceleration
c)
Not moving
94.

Match the description to the graph:

"The car is stopped."

a)
b)
c)
95.

Match the description to the graph:

"The car is traveling at a constant speed."

a)
b)
c)
96.

Match the description to the graph:

"The car is coming back."

a)
b)
c)
d)
97.

Segment A-B The bus is _________________.

a)

at rest

b)

returning (to original position)

c)

moving forward

98.

Segment C-D The bus is _________________.

a)

at rest

b)

returning (to original position)

c)

moving forward

99.

Which of the graphs shows that one of runners started in the same place?

a)
b)
100.

In which of the following graphs below did one runner overtake (run past) the other?

a)
b)
c)
d)
101.

Match the description to the graph:

"The car is slowing down."

a)
b)
c)
d)
102.
What two measurements are necessary for calculating speed?
a)
Mass and time
b)
Temperature and mass
c)
Mass and distance
d)
Distance and time
103.
A measurement of how fast an object is moving
a)
Velocity
b)
Speed
c)
Vector
d)
Acceleration
104.
Can be measured in meters (m)
a)
Distance
b)
Time
c)
Speed
d)
Acceleration
105.

Describe the motion in the graph:

a)

Constant Speed (positive slope)

b)

Stopped (at rest)

c)

Acceleration (increasing speed)

d)

Return Home (negative slope)

106.

Describe the motion in the graph:

a)

Constant Speed (positive slope)

b)

Stopped (at rest)

c)

Acceleration (increasing speed)

d)

Return Home (negative slope)

107.

A measurement of how fast an object is moving with direction

a)

Velocity

b)

Speed

c)

Vector

d)

Acceleration

108.
The graph shows Ashley riding her bike to Maria's house. 
What was occurring from point B to point C?
a)
She was increasing her speed.
b)
She stopped for 4 minutes
c)
She was decreasing in speed
109.

Which is faster?

a)

walking

b)

skating

c)

biking

110.

Which of these graphs do not show the object staying still?

a)
b)
c)
d)
111.

Which scene matches the graph?

a)

A boy walked to his girlfriends house - stayed a while then walked home

b)

Justice rode her bike to the mall

c)

Yeshua walked home from school

112.
At which point is potential energy greatest?
a)
W
b)
X
c)
Y
d)
Z
113.
__________ is stored energy. 
a)
Potential
b)
Kinetic
c)
None of the above 
d)
All of the above 
114.
The faster an object moves, the ________ kinetic energy it has. 
a)
more
b)
less
c)
none of the above
d)
same
115.
What kind of energy is in a rock at the edge of a cliff?
a)
Potential
b)
Kinetic
c)
Both potential and kinetic energy
d)
none of the above
116.
Which is the best example that something has kinetic energy?
a)
a. a car parked on a steep hill 
b)
b. a tennis ball rolling across the court
c)
c. a picture hanging on the wall 
d)
d. a piece of coal before it's burned 
117.
Energy due to motion is ____________ energy. 
a)
Potential 
b)
Energy
c)
Kinetic
d)
Friction
118.
Energy can be _____________ or changed from one type to another.
a)
destroyed
b)
transferred
c)
created
d)
ignored
119.
What kind of energy is in a stretched rubber band?
a)
Potential
b)
Kinetic
120.
Energy can not be created or destroyed, only converted from one form to another.
a)
true
b)
false
121.
Energy can not be created or destroyed, only converted from one form to another.
a)
true
b)
false
122.
At which point is kinetic energy greatest? 
a)
W
b)
X
c)
Y
d)
Z
123.
Gravitational potential energy depends on the ________ and ________ of the object. 
a)
Height and mass
b)
Friction and movement
c)
Mass and Movement
d)
Height and Friction 
124.
What kind of energy is in a person climbing a ladder?
a)
Potential
b)
Kinetic
c)
Both
125.
When a pendulum swings, at which point is kinetic energy highest?
a)
1
b)
2
c)
3
d)
4
126.
When a pendulum swings, at which point is potential energy at its greatest?
a)
1
b)
2
c)
3
d)
4
127.
What are the two factors that affect kinetic energy?
a)
time and energy
b)
power and mass
c)
mass and speed
d)
time and work
128.
Which of the following is an exmaple of a change of kinetic energy into gravitational potential energy?
a)
a person parachuting out of a plane
b)
a car racing around an oval track
c)
a person skiing down a hill
d)
a person walking up a hill
129.
Which is an example of potential energy?
a)
a roller coaster speeding down a hill
b)
the pulled back string on an archers's bow
c)
releasing the strings on a guitar
d)
an electric current lighting a light bulb
130.

Choose the BEST answer that is an example of an energy transformation from potential energy to kinetic energy.

a)

a ball standing still then rolling down a ramp

b)

a picture hanging on the wall

c)

a swing swaying back and forth

d)

a coat hanging on a hook

131.
Explain what happens to the potential energy of a rock as it falls off the side of a cliff.
a)
The kinetic energy decreases as the potential energy increases.
b)
The kinetic energy decreases as the potential energy decreases.
c)
The potential energy decreases as the kinetic energy increases.
d)
The potential energy decreases as the kinetic energy decreases. 
132.
When riding a roller coaster, you go up and down many hills. As you get to the top of a roller coaster, what energy change is taking place.
a)
Potential energy is changed into kinetic energy.
b)
Kinetic energy is changed into potential energy.
c)
Chemical energy is changed into heat energy.
d)
Heat energy is changed into chemical energy. 
133.
When riding a roller coaster, you go up and down many hills. When do you have the maximum (most) kinetic energy?
a)
At the top of each hill.
b)
As you go down each hill.
c)
At the bottom of each hill.
d)
As you go up each hill.

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