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Kinetic Energy

Total questions: 20

Worksheet time: 24mins

Name
Class
Date
1.
The faster an object moves, the ________ kinetic energy it has. 
a)
more
b)
less
c)
none of the above
d)
all of the above 
2.

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

3.
What would have the greatest kinetic energy?
a)
A car driving down a hill.
b)
A person running down a hill. 
c)
A ball rolling down a hill. 
4.

The statement that "the energy within a system remains constant and cannot be created or destroyed, only transformed" best sums up _________.

a)

Something Mr. Lance likes to say.

b)

Life

c)

Law of Conservation of Energy

d)

The scientific method

e)

Newton's Third Law

5.
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 
6.

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.

7.
What is kinetic energy?
a)
energy of work
b)
energy of motion
c)
energy of gravity
d)
energy of power
8.
The SI unit in which kinetic energy is measured is 
a)
Newton
b)
Kilogram
c)
Joules
d)
Metres per second
9.
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
10.
How much kinetic energy does a moving 6 kg object have if it moves with a velocity of 3 m/s?
a)
27 J
b)
18 J
c)
9 J
d)
2 J
11.

What is the kinetic energy of a 4kg shotput thrown with a velocity of 13m/s

a)

676 J

b)

52 J

c)

17J

d)

338 J

12.

What is the kinetic energy of a ball with a mass of 5kg rolling at 10m/s

a)

50 J

b)

500 J

c)

250 J

d)

25 J

13.
A 60 kg Ewok is travelling at a constant speed of 7 m/s. What is its kinetic energy in KJ?
a)
1.47 KJ
b)
210 KJ
c)
147 KJ
d)
1470 KJ
14.
What is the kinetic energy of a 1500 gram object moving at a velocity of 100 m/s
a)
112.5 J
b)
7,500,000 J
c)
75 J
d)
7,500 J
15.
What is the kinetic energy of a 25,000g object moving at a velocity of 2.5 m/s
a)
78.125 J
b)
31250 J
c)
781.25 J
d)
78,125 J
16.
How much kinetic energy does a person of mass 50kg running at 3m/s have? Provide your answer in KJ.
a)
225 KJ
b)
0.225 KJ
c)
75 KJ
d)
0.075 KJ
17.
What is the kinetic energy of a 30,000 g object moving at a velocity of 4 m/s. Provide you answer in KJ
a)
240,000 KJ
b)
240 KJ
c)
2400 KJ
d)
0.24 KJ
18.
Can energy be destroyed?
a)
no
b)
yes
19.
Can energy be changed?
a)
yes
b)
no
20.
Energy can not be created or destroyed, only converted from one form to another.
a)
true
b)
false

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