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WorksheetsKinetic Energy
Total questions: 25
Worksheet time: 6hrs 15mins
Name
Class
Date
1.
Energy due to motion is ____________ energy.
a)
Potential
b)
Energy
c)
Kinetic
d)
Friction
2.
The faster an object moves, the ________ kinetic energy it has.
a)
more
b)
less
c)
none of the above
d)
all of the above
3.
As mass increases, KE ...
a)
increases
b)
decreases
c)
stays the same
4.
Which has a greater impact on KE?
a)
mass
b)
velocity
5.
The SI unit in which kinetic energy is measured is
a)
Newton
b)
Kilogram
c)
Joules
d)
Metres per second
6.
Rearrange the equation for kinetic energy to make mass the subject of the equation.
a)
m = KE/2v2
b)
m = 2KE/v2
c)
m = v2/2KE
d)
m = 2v2/KE
7.
Rearrange the equation for kinetic energy to make velocity squared the subject of the equation.
a)
v2 = KE/2m
b)
v2 = 2m/KE
c)
v2 = 1/2 KE m
d)
v2 = 2KE/m
8.
Rearrange the equation for kinetic energy to make velocity the subject of the equation.
a)
v = √(2KE/m)
b)
v2 = 2KE/m
c)
v = √(m/2KE)
d)
v = √(KE/2m)
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)
3.25 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)
5 J
c)
250 J
d)
25 J
13.
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
14.
A rabbit of mass 3kg walks at a speed of 0.5m/s. Calculate its kinetic energy.
a)
0.5 J
b)
0.75 J
c)
0.255 J
d)
0.375 J
15.
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
16.
A moving 10 kilogram object has 20 Joules of kinetic energy. What is its velocity?
a)
2 m/s
b)
4 m/s
c)
200 m/s
d)
10 m/s
17.
What is the mass of a moving object that has 100 Joules of kinetic energy and moves at a velocity of 2 m/s?
a)
50 kg
b)
200 kg
c)
25 kg
d)
100 kg
18.
An explosion of gas from a Hawaiian volcano blows a rock into the sky. the rock has 2000J of kinetic energy. What was its mass if the rock had a velocity of 20m/s
a)
200Kg
b)
20,000Kg
c)
10Kg
d)
200Kg
19.
An 8kg dog chases a cat. if the dog has 400J of kinetic energy. What is the speed of the dog?
a)
10 m/s
b)
5 m/s
c)
1 m/s
d)
100 m/s
20.
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
21.
Work is _____.
a)
using force to move an object
b)
when a magnet attracts metals
c)
not doing homework
22.
When a pendulum swings, at which point is kinetic energy highest?
a)
1
b)
2
c)
3
d)
4
23.
Calculate the potential energy of a car with a mass of 2,500 kg that is on a hill 100 meters above sea level.
a)
250,000 J
b)
2,450,000 J
c)
2,451,663 J
d)
248 J
24.
Ty lifts a set of 1250kg weights a vertical distance of 2m in a weight lifting contest. What Potential Energy do the weights now possess?
a)
12,789 Joules
b)
24,500 Joules
c)
4,500 Joules
25.
A block starts with 2000 joules of gravitational potential energy. After t seconds, the block has 800 joules of gravitational potential energy. How much kinetic energy does it have, in joules?
(a)
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