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Unit 6 Review Energy Flow

Total questions: 28

Worksheet time: 23mins

Name
Class
Date
1.

The energy of motion is which type of energy?

a)

Potential

b)

Kinetic

c)

Sound

d)

Gravitational

2.

What type of energy is best displayed by the picture?

a)

Kinetic

b)

Potential

c)

Chemical

d)

Sound

3.
What kind of energy is represented in the picture?
a)
Thermal
b)
Chemical
c)
Sound
d)
Nuclear
4.
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
5.
On a roller coaster, where is maximum kinetic 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
6.
Energy that is stored in bonds between atoms is:
a)
Mechanical energy
b)
Chemical energy
c)
Kinetic energy
d)
Nuclear energy
7.
Energy is always found in the same form
a)
True
b)
False
8.
Sunlight, radio waves, and X-Rays are each examples of _______ energy.
a)
chemical
b)
electrical
c)
Potential
d)
electromagnetic
9.
Energy associated with the motion of particles in a substance.
a)
thermal
b)
radiant
c)
electrical
d)
chemical
10.
The faster an object moves, the ________ kinetic energy it has. 
a)
more
b)
less
c)
none of the above
d)
all of the above 
11.
As mass increases, KE ...
a)
increases
b)
decreases
c)
stays the same
12.
How much KE does a moving 6 kilogram object have if it moves with a velocity of 3 m/s?
a)
27 J
b)
18 J
c)
9 J
d)
2 J
13.

As the velocity of an object decreases its kinetic energy will...

a)

increase

b)

decrease

c)

stay the same

14.

Which has a greater impact on kinetic energy? (hint think about the formula used to calculate kinetic energy)

a)

mass

b)

velocity

15.
What is the KE of a football which has a mass of 0.8 kg and is kicked at a velocity of 10 m/s.
a)
80 J
b)
3.2 J
c)
160 J
d)
40 J
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.

What is energy?

a)

something that picks up things, like a magnet.

b)

Motion of an object

c)

ability to do work

d)

magic rays of sunshine that come down when you're feeling blue.

18.
The SI unit in which kinetic energy is measured is 
a)
Newton
b)
Kilogram
c)
Joules
d)
Metres per second
19.
Calculate the kinetic energy of a moving 4 kg object travelling at a velocity of 3 m/s.
a)
18 J
b)
36 J
c)
12 J
d)
6 J
20.

Energy stored because of gravity is called:

a)

Gravitational Potential Energy

b)

Kinetic Energy

c)

Mechanical Advantage

d)

Chemical Energy

21.

At which point does the ball has the greatest gravitational potential energy (GPE)?

a)

A

b)

G

c)

D

d)

C

e)

G

22.

You throw a ball into the air as shown in the diagram. At what point does the ball have the most gravitational potential energy?

a)

W

b)

X

c)

Y

d)

Z

23.

At which position does the child on the swing have the most gravitational potential energy?

a)

W

b)

X

c)

Y

d)

Z

24.

How much gravitational potential energy does a 100kg (220lb.) skydiver have if they jump from 4000 meters?

a)

3920000 J

b)

294 J

c)

180000 J

d)

1225 J

25.

A 6kg cat misjudges a jump and falls 5 meters. How much gravitational potential energy does the cat have? (The cat is fine by the way.)

a)

294 J

b)

180000 J

c)

1225 J

d)

3920000 J

26.

What is the unit for mass?

a)

kilogram (kg)

b)

meter (m)

c)

Newton (N)

d)

Joule (J)

27.

When a pendulum swings, at which point is kinetic energy greatest?

a)

1

b)

2

c)

3

d)

4

28.

What is happening to the potential energy between position 1 to 3?

a)

Decreasing

b)

Increasing

c)

Stays the same

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