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Unit 2 Energy Review

Total questions: 50

Worksheet time: 4hrs 36mins

Name
Class
Date
1.
Where in the skatepark are potential and kinetic energy of the skater roughly equal?
a)
Point A
b)
Point B
c)
Point C
2.

Which would have the LEAST gravitational potential energy (GPE)?

a)

A ball sitting on the ground

b)

Moon viewed from the Earth

c)

An airplane flying 30,000 feet above the ground

d)

A rock sitting on top of Mt. Everest

3.

What is the value of the Earth's acceleration due to gravity (g)? (a)  

Choose from the below words
9.8 m/s2
100 m/s2
25 m/s2
3.14 m/s2
4.
(8.6A) For an investigation, a student measures the speed of a cart as it rolls down a ramp. The student then records data in the table below.
Which of these best explains the student's data?
a)
The speed of the cart decreases as the cart rolls down the ramp because of friction between the cart and the ramp.
b)
The speed of the cart increases as the cart rolls down the ramp because the force acting on the cart is greater than the force of gravity.
c)
the speed of the cart increases as the cart rolls down the ramp because the forces acting on the cart are unbalanced.
d)
the speed of the cart decreases as the cart rolls down the ramp because the forces acting on the cart are balanced
5.
What is this graph showing?
a)
Constant Speed
b)
Acceleration (speeding up)
c)
Deceleration (slowing down)
d)
No motion
6.
How far did a baseball travel in 5 seconds?
a)
10 meters
b)
5 meters
c)
150 meters
d)
15 meters
7.
What two measurements are necessary for calculating speed?
a)
Mass and time
b)
Temperature and mass
c)
Mass and distance
d)
Distance and time
8.
How far did they run?
a)
A)100 seconds  
b)
B)100 meters
c)
C)18 meters 
d)
D)18 seconds
9.
What does the flat line mean for Charlie?
a)
He stayed at the same speed
b)
He slowed down
c)
He stopped running 
d)
He stayed at the same speed but at a slower rate
10.
What is the speed of the object shown in the graph?
a)
A)2 m/s  
b)
B)4 m/s
c)
C)1 m/s
d)
 D)10 m 
11.
(8.6A) The diagram below shows a boat moving north in a river at 3 m/s while the current in the river moves south at 1 m/s.
How will the boat be affected if it enters a part of the river where the current is moving south at 2 m/s?
a)
The boat will move slower.
b)
the boat will move faster.
c)
The boat will stop.
d)
The boat will move to the west.
12.
(8.6C) Two cars with different masses travel at the same speed down a hill toward a stop sign. What will happen when both cars apply brakes at the same time to stop?
a)
The car with the smaller mass will require less force to stop than the car with the larger mass.
b)
The car with the larger mass will maintain its velocity while traveling down the hill.
c)
The car with the smaller mass will take longer to stop than the car with the larger mass.
d)
The car with the larger mass will have less inertia than the car with the smaller mass.
13.
(8.6A) For an investigation, a student measures the speed of a cart as it rolls down a ramp. The student then records data in the table below.
Which of these best explains the student's data?
a)
The speed of the cart decreases as the cart rolls down the ramp because of friction between the cart and the ramp.
b)
The speed of the cart increases as the cart rolls down the ramp because the force acting on the cart is greater than the force of gravity.
c)
the speed of the cart increases as the cart rolls down the ramp because the forces acting on the cart are unbalanced.
d)
the speed of the cart decreases as the cart rolls down the ramp because the forces acting on the cart are balanced
14.
A student graphed the position of a car during  4 hour period. Which graph best represents when the car was moving at a constant velocity?
a)
Graph A
b)
Graph B
c)
Graph C
15.

A push or pull that can change the motion of an object.

a)

force

b)

energy

c)

work

d)

energy

16.

Potential energy due to a higher position; also called gravitational field energy.

a)

gravitational potential energy

b)

magnetic potential energy

c)

chemical potential energy

d)

electric potential energy

17.

Required for changes to happen within a system.

a)

work

b)

energy

c)

force

d)

gravity

18.
When one energy form is changed into another it is called a
a)
transformation
b)
transfer
c)
translocation
d)
transcription
19.
The Law of Conservation of Energy states that
a)
energy cannot be created nor destroyed, only transformed or transferred
b)
energy can be destroyed but not created
c)
energy can be created but not destroyed
20.

Where do humans get the energy to run a mile?

a)

Gravitational potential energy

b)

Elastic energy

c)

Nuclear energy

d)

Chemical energy

21.

At the top of the highest point/peak on a roller coaster, how is the energy split between potential and kinetic energy?

a)

100% PE, 0% KE

b)

0% PE, 100% KE

c)

50% PE, 50% KE

d)

25% PE, 75% KE

22.
Which 2 letters have the most kinetic energy
a)
W & Y
b)
X & Z
23.
Which would have the greatest gravitational potential energy?
a)
A 4lb rat on a school desk
b)
A 45lb dog in an oak tree
c)
A 14 pound platypus on a swing
d)
A 45lb child on a bike
24.
Which of the following has no energy?  
a)
A. A wrecking ball 
b)
B. A pot of water
c)
C. A moving vehicle
d)
D. None of the above
25.
Is this activity as an example of potential or kinetic energy Choose “PE” or “KE”:
A child on his way down a playground slide.
a)
PE
b)
KE
26.
What kind of energy is represented in this picture?
a)
Thermal
b)
Potential
c)
Nuclear
d)
Mechanical
27.
A battery converts what type of energy to another?
a)
sound to kinetic
b)
light to heat
c)
mechanical to electrical
d)
chemical to electrical
28.
What kind of energy does this device use?
a)
Chemical
b)
Electrical
c)
Thermal
d)
Chemical
29.
What type of energy is in this picture?
a)
Kinetic
b)
Potential
c)
Chemical
d)
Sound
30.
What kind of energy is represented in the picture?
a)
Thermal
b)
Chemical
c)
Sound
d)
Nuclear
31.
The glow sticks produce light for a short amount of time. The light from the glow stick is a conversion from what to what?
a)
thermal to light
b)
gravitational to potential
c)
radiant to electrical
d)
chemical to light
32.
On a roller coaster, where is maximum potential energy?
a)
At the bottom of a big hill
b)
When going around a corner
c)
When going upside down
d)
At the top of a big hill
33.
Exothermic reactions...
a)
Absorb energy
b)
Release energy
c)
Release Color
d)
Absorb Color
34.

Fill in the blanks with the correct terms.


When a thing gets hotter, its molecules are moving _______ and have _______ kinetic energy.

a)

faster and have more kinetic energy.

b)

slower and have less kinetic energy.

35.

Fill in the blanks with the correct terms.


When a thing gets colder, its molecules are moving ______ and have ________ kinetic energy.

a)

slower and have less kinetic energy.

b)

faster and have more kinetic energy.

36.

What is thermal energy?

a)

cool

b)

moving parts

c)

heat

37.
Energy of motion is which type of energy?
a)
Potential
b)
Kinetic
c)
Sound
d)
Gravitational
38.

What is the transformation shown in the picture?

a)

electrical to light

b)

electrical to chemical

c)

potential to sound

d)

sound to potential

39.
As mass increases, KE ...
a)
increases
b)
decreases
c)
stays the same
40.

Motion is:

a)

Distance traveled in a period of time

b)

Energy of motion

c)

A change in position relative to a reference point

d)

Speed with a direction of motion

41.

Hot objects begin to cool as...

a)

cooler air is transferred to the object.

b)

energy in the object is transferred to the surrounding air.

c)

atoms in the object react with the oxygen in the air.

d)

energy in the object cancel out energy in the air.

42.

Laura bruised her knee. She applied an ice pack to the bruised area. When she removed the ice pack from the injured knee, she noticed that the temperature of her skin was lower than the rest of her body. What is the most likely reason this occurred?

a)

Increased blood flow due to the ice pack caused the skin to be cooler.

b)

The cooling energy of the ice pack was transferred to the skin.

c)

Heat energy from the skin was transferred to the ice pack.

d)

The air surrounding the ice pack cooled the skin.

43.
Solar Energy is transferred to _____ Energy.
a)
Mechanical
b)
Solar
c)
Sound
d)
Electrical
44.
Electrical Energy is transferred to _____ Energy.
a)
Thermal
b)
Solar
c)
Electrical
d)
None
45.
Mechanical Energy is transferred to _____ Energy.
a)
Solar
b)
Mechanical
c)
Electrical
d)
Potential
46.
What energy is given off when a cell phone rings?
a)
Sound Energy
b)
Gravitational Energy
c)
Thermal Energy
d)
Nuclear Energy
47.
Mr. Huff's students are complaining that it is hot in the classroom. He plugs in a fan and turns it on, what energy transformation now occurs?
a)
mechanical to electrical
b)
electrical to mechanical
c)
chemical to mechanical
d)
electromagnetic to mechanical
48.
What is an example of Nuclear energy?
a)
light energy
b)
splitting nuclei
c)
burning logs
d)
plucking a guitar string
49.
Thermal energy is...
a)
burning logs
b)
turning on a fan
c)
sun energy
d)
splitting of nuclei
50.

What type of energy transformation occurs when using an electric pencil sharpener?

a)

electrical to mechanical

b)

sound to electrical

c)

mechanical to electrical

d)

potential to sound

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