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Energy Unit Test Review

Total questions: 49

Worksheet time: 2hrs 27mins

Name
Class
Date
1.

The cars on this roller coaster have a huge amount of what kind of energy?

a)

Chemical

b)

Nuclear

c)

Potential

d)

KInetic

2.

What kind of energy does something that's moving have?

a)

chemical

b)

kinetic

c)

potential

d)

nucleo-ptolemaic

3.

The kinetic energy of an object can increase if what changes?

a)

Its shape

b)

Its mass

c)

Its speed

d)

Its mass AND speed

4.

Which bowling ball has the most potential energy?

a)
b)
c)
d)

None of the above

5.

A 1400 kilogram car is moving at a speed of 25 m/s. How much kinetic energy does the car have?

a)

427,500 J

b)

237,500 J

c)

437,500 J

d)

537,500 J

6.
A 0.40 kilogram bird is flying at a constant speed of 8.0 m/s. What is the bird's kinetic energy ?
a)
3.2 J
b)
4.2 J
c)
2.0 J
d)
12.8 J
7.

True or False: The equation for Kinetic energy is KE=1⁄2mv2

a)

True

b)

False

8.

An example of Kinetic Energy is:

a)

Stretching a rubber band

b)

Bike moving down a Hill

c)

Ball at the top of a hill

d)

squishing a spring

9.
In order to INCREASE the potential energy of an object, you need to:
a)
move the object lower.
b)
raise the object higher.
10.

Energy can not be created or destroyed, it just changes form is called?

a)

Law of Conservation of Matter

b)

Law of Conservation of Mass

c)

Law of Conservation of Energy

d)

e=mc2

11.
A glass of milk.
a)
Potential
b)
Kinetic
12.
Gasoline in a car tank (car is not on).
a)
Potential
b)
Kinetic
13.
A stretched rubber band.
a)
Potential
b)
Kinetic
14.

The coaster at A has -

a)

Maximum PE, Minimum KE

b)

Minimum PE, Maximum KE

c)

Minimum PE, High KE

d)

Maximum PE, Maximum KE

15.

The coaster at B is at -

a)

Maximum PE, Minimum KE

b)

Minimum PE, Minimum KE

c)

Minimum PE, Maximum KE

d)

Maximum PE, Maximum KE

16.

A cheetah can run briefly with a speed of 31.0 m/s. Suppose a cheetah with a mass of 47.0 kg runs at this speed. What is the cheetah’s kinetic energy?

a)

1457 Joules

b)

22,584 Joules

c)

15 Joules

d)

45,167Joules

17.
A 60.0 kg person walks from the ground to the roof of a 74.8 m tall building. How much gravitational potential energy does she have at the top of the building?
a)
43982.4 J
b)
63982.3 J
c)
43962.4 J
d)
83942.4 J
18.

A small meteoroid is approaching Earth. It has a mass of 100.0 kg and a speed of 10.0 km/s. How much kinetic energy does the meteoroid have? (Hint: 1 km = 1000 m)

a)

5,000,000,000 J

b)

4,500,000,000 J

c)

6,000,000,000 J

d)

2,500,000,000 J

19.
Waves move ___ through vibrations
a)
Energy
b)
Matter
c)
Mass
d)
Weight
20.
Longitudinal waves are ______.
a)
Parallel
b)
Perpendicular
c)
Crazy
21.
Transverse waves are ___.
a)
Parallel
b)
Perpendicular
c)
Weird
22.
What is the wavelength?
a)
Length
b)
Height
c)
# of waves
23.
What is the amplitude?
a)
length
b)
height
c)
# of waves
24.
Which is the wavelength?
a)
1
b)
2
c)
3
d)
4
25.
If the frequency gets higher, the wavelength gets 
a)
longer
b)
shorter
26.
If the wavelength gets longer, the frequency gets 
a)
higher
b)
lower
27.
The pitch of the sound depends on
a)
frequency
b)
amplitude
c)
wavelength
28.
The loudness of the sound depends on
a)
wavelength
b)
amplitude
c)
frequency
29.
Temperature is _________________.
a)
how hot or cold something is.
b)
the sum of all the energy in a system.
c)
the degree to which you can measure.
d)
a measure of the average kinetic energy of all the particles in an object/substance.
30.
Heat is _________________.
a)
how hot or cold something is.
b)
the sum of all the kinetic and potential energy of the particles in an object.  
c)
the flow of energy from a warmer object to a cooler object.
d)
A measure of the average kinetic energy of all the particles in an object.
31.
The transfer of energy in the form of electromagnetic waves is__________________.
a)
radiation
b)
convection
c)
conduction
d)
refraction
32.
A material that flows is a _______.
a)
Solid
b)
Liquid
c)
Gas
d)
Fluid
33.
Heat that is transferred from one object to another through direct contact is called
a)
convection
b)
radiation
c)
conduction
d)
thermal
34.
A slower particle has a lower energy than an identical, faster particle.
a)
True
b)
False
35.
Heat transfer by conduction occurs when...
a)
particles bump into each other
b)
large numbers of atoms move from place to place
c)
atoms give off heat in the form of electromagnetic waves
d)
electromagnetic waves travel from place to place through a vacuum
36.
Heat travels from the sun to the earth by the process of...
a)
conduction
b)
convection
c)
radiation
d)
insulation
37.

Think about a pan of water sitting on an electric stove. The stove is then turned on to high.

How is heat transferred from the stove to the pan?

a)

conduction

b)

convection

c)

radiation

d)

temperature

38.

Calculate the wavelength of the yellow light emitted by the street light, if the frequency of the radiation is 5.10x1014Hz.

a)

5.12 x 10-7m

b)

5.88 x 10-7 m

c)

4.20 x 1014m

d)

3.0 x 108m

39.

On a wave, the distance between crest to crest is called?

a)

amplitude

b)

wavelength

c)

frequency

d)

trough

40.

Which color in the visible spectrum of light has the longest wavelength?

a)

Indigo

b)

Red

c)

Blue

d)

Violet

41.

Calculate the wavelength of blue light emitted by a mercury lamp with a frequency of 6.88 x 1014 Hz.

a)

3.44 x 10-6m

b)

4.36 x 10-7m

c)

3.0 x 108 m

d)

633 m

42.

What is the frequency of light with a wavelength of

4.8 x 10-7 meters?

a)

5.34 x 10-9 Hz

b)

3.0 x 108 Hz

c)

3.21 x 1017 Hz

d)

6.25 x 1014 Hz

43.
Calculate the wavelength of light that has a frequency of 5.2 x 1012 Hz. 
a)
5.8 x 10 -5 m
b)
5.8 x 10 -7 m
c)
5.19 x 10 14 m
d)
1.56 x 10 23 m
44.
If an AM radio station broadcasts at
9.95 x 105 Hz, what is the wavelength of this radiation?
a)
6.59 x 10-28 m
b)
1.01 x 10-6 m
c)
3.32 x 10-3 m
d)
302 m
45.
An argon ion laser emits light at 488 nm. What is the frequency of this radiation? (1 nm = 1x10-9m)
a)
4.07 x 10-19 Hz
b)
6.15 x 1014 Hz
c)
1.46 x 102 Hz
d)
2.05 x 106 Hz
46.

What is the formula for calculating elastic potential energy?

a)

E = mgh

b)

E = 1/2 mv^2

c)

E = Fd

d)

E = 1/2 kx^2

47.

If the spring constant of a spring is doubled, what happens to its elastic potential energy?

a)

It quadruples.

b)

It doubles.

c)

It remains the same.

d)

It halves.

48.

The units for elastic potential energy are...

a)

Joules, J

b)

metres, m

c)

centimetres, cm

d)

kilograms, kg

49.

a spring with a stiffness of 120 N/m is stretched for 15 cm by a heavy back suspended on it. then the elastic potential energy stored by the spring is:

a)

15 J

b)

1.35 J

c)

120 J

d)

9 J

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