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Worksheetspotential energy. conservation of energy
Total questions: 8
Worksheet time: 13mins
Name
Class
Date
1.
Which type of energy increases when you compress a spring?
a)
elastic potential energy
b)
kinetic energy
c)
radiant energy
d)
sound energy
2.
Energy stored because of gravity is called:
a)
Gravitational Potential Energy
b)
Kinetic Energy
c)
Mechanical Advantage
d)
Chemical Energy
3.
Gravitational potential energy depends on the ________ and ________ of the object.
a)
Height and mass
b)
Friction and movement
c)
Mass and Movement
d)
Height and Friction
4.
At which point does the ball has the greatest gravitational potential energy (GPE)?
a)
A
b)
G
c)
D
d)
C
e)
G
5.
What is the work done by the gravitational force when an object comes down?
a)
-mgh
b)
+mgh
c)
0
6.
A 40 kg crate is picked up by a crane to a height of 50m. The crate falls. What is the velocity of the crate just before it hits the ground?
a)
2000 Joules
b)
19,600 Joules
c)
19,600 m/s
d)
31.3 m/s
7.
What is the kinetic energy at position X? (ignore friction)
a)
0J
b)
1,000J
c)
19,000J
d)
can not be determined
8.
1. A ball has a 17 J of kinetic energy and its mechanical energy is 25 J. If the ball has a mass of 3.2 kg, what is its height above the ground?
a)
0.26 m
b)
0.52 m
c)
5.2 m
d)
25 m
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