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Elastic Potential Energy Review

Total questions: 21

Worksheet time: 18mins

Name
Class
Date
1.

What unit is used for the Potential Energy of a spring?

a)

Newton

b)

meter

c)

Joule

d)

m/s^2

2.

What is potential energy?

a)

The energy an object has due to its position or condition.

b)

The energy an object has due to its motion.

c)

The energy an object has due to its chemical composition.

d)

The energy as object has due to its atomic structure.

3.

A stretched rubber band represents what type of potential energy?

a)

gravitational potential energy

b)

elastic potential energy

c)

chemical potential energy

d)

kinetic potential energy

4.

Elastic potential energy is energy stored in an object, such as a spring, due to the object being stretched or compressed. In which position is it most likely that the spring has lost its elastic potential energy?

a)

W

b)

Y

c)

X

d)

Z

5.

Which object has elastic potential energy?

a)

a hanging leaf

b)

a burning coal

c)

a rolling ball

d)

a stretched bow

6.
When a rubber band is stretched, it has __________________ 
energy.
a)
Potential
b)
Kinetic
c)
Nuclear
d)
Thermal
7.

The ability to move, change matter, or to do work is called ___________.

a)

energy

b)

kinetic energ;y

c)

energy conversion

d)

potential energy

8.

The energy of moving matter is called ____________.

a)

gravitational potential energy

b)

elastic potential energy

c)

kinetic energy

d)

potential energy

9.
The faster an object moves, the ________ kinetic energy it has. 
a)
more
b)
less
c)
none of the above
d)
all of the above 
10.

A stretched rubber band represents what type of potential energy?

a)

gravitational potential energy

b)

elastic potential energy

c)

chemical potential energy

d)

kinetic potential energy

11.

A force 480 N of that changes the spring length by 0.25 m, calculate the elastic potential energy in Joule.


Elastic Potential Energy=1/2 x Force x extension length

a)

30 Joule

b)

60 Joule

c)

90 Joule

d)

120 Joule

12.

Leo (700 N) stretches the trampoline mat by 37 cm. Calculate the elastic potential energy he puts into the trampoline mat.


Elastic potential energy = 1/2 X Force X Stretching length

HINT: Stretching length in cm must be converted to metre. 1 cm = 0.01 m

a)

4.79 J

b)

129.5 J

c)

47.9 J

d)

12.76. J

13.

A stiff spring stores _____ potential energy per meter of stretch.

a)

more

b)

less

14.
Can energy be destroyed
a)
no
b)
yes
15.
Energy can be _____________ or changed from one type to another.
a)
destroyed
b)
transferred
c)
created
d)
ignored
16.

What potential energy is this graph representing?

a)

Electric

b)

Elastic

c)

Magnetic

d)

Gravitational

17.

What is deformation?

a)

gravitational potential energy

b)

change in the spring's length

c)

change in the force applied

18.

As the ball hits the ground, ..................energy is transferred to ....................... enrgy.

a)

gravitational to kinetic

b)

kinetic to chemical

c)

kinetic to elastic

d)

kinetic to gravitational

19.

When the ball is falling down, the gravitational energy is transferred to .................................... energy.

a)

potential

b)

kinetic

c)

elastic

d)

chemical

20.

An object initially at rest falls from a height H until it reaches the ground. Two of the following energy bar charts represent the kinetic energy K and gravitational potential energy Ug of the object-Earth system at two positions. The first position is when the object is initially released, and the second position is when the object is halfway between its release point and the ground. Which two charts could represent the mechanical energy of the object-Earth system? Select two answers.

a)

h

b)

c)

d)

21.

In order for the spring toy to work, it must be compressed a specific distance for the suction cup to attach. This would make the change in spring length...

a)

the independent variable

b)

the dependent variable

c)

a constant in the experiment

d)

irrelevant