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WorksheetsEnergy Transformations & Convservation
Total questions: 20
Worksheet time: 10mins
Name
Class
Date
1.
Most forms of energy can be transformed into other forms.
a)
True
b)
False
2.
Energy change can happen in single transformations or _______ transformations.
a)
single
b)
multiple
c)
zero
3.
A fan changes electromagnetic energy (from the wall outlet) into mechanical energy (the moving blades). This is a
a)
Single Transformation
b)
Multiple Transformation
4.
A spark plug uses electricity to ignite the gasoline/air in the engine which moves the engine piston (electricity --> chemical --> mechanical). Thus, a car uses _______.
a)
Single transformation
b)
Multiple transformation
5.
Gravitational Potential Energy (like that in an apple hanging on a tree) can be converted into Kinetic Energy.
a)
True
b)
False
6.
The apple hanging on the tree has _____ kinetic energy
a)
Zero
b)
A little
c)
A lot
d)
Maximum
7.
Suppose the apple falls. At the moment it strikes the ground, it has ______ potential energy.
a)
Zero
b)
A little
c)
A lot
d)
Max
8.
Suppose the apple falls off the tree. At the moment it strikes the ground it has _______ kinetic energy.
a)
Zero
b)
A little
c)
A lot
d)
maximum
9.
When the clock's pendulum is at its farthest position to the left or right of center, it has _____ velocity and ______ kinetic energy.
a)
Zero; Zero
b)
A little; A little
c)
A lot; A lot
d)
Maximum; maximum
10.
When the clock's pendulum is at its farthest left or right of center, it has ______ potential energy.
a)
Zero
b)
A little
c)
A lot
d)
Maximum
11.
When the clock's pendulum is swinging through the center of its path, it has ____ velocity and _____ kinetic energy
a)
zero; zero
b)
a little; a little
c)
a lot; a lot
d)
maximum; maximum
12.
When the clock's pendulum is swinging through the center of its path, it has ______ potential energy
a)
zero
b)
a little
c)
a lot
d)
maximum
13.
The kind of potential energy associated with rubber bands, springs, and pole vault poles is called _______ potential energy.
a)
Elastic
b)
Gravitational
c)
Kinetic
14.
If billy shoots the rubber band at the wall, it has _____ elastic potential energy as he stretches it preparing to release it.
a)
Zero
b)
A little
c)
A lot
15.
After Billy releases the band and it is zooming toward the wall, it's elastic potential energy has been transformed into ________ energy.
a)
Chemical
b)
Kinetic
c)
Gravitational Potential
16.
Some energy gets destroyed when it changes form.
a)
True
b)
False
17.
Energy cannot be either created or destroyed. This is called the law of __________ of energy.
a)
Conservation
b)
Mutation
c)
Ionization
18.
Even though energy is never destroyed, things we impart energy to (like a spinning top or a bowling ball) eventually do stop. How is this possible?
a)
The energy evaporates like water.
b)
Tops and bowling balls are abnormal; most things don't eventually stop.
c)
Kinetic energy is transformed into friction, which dissipates as heat.
19.
Matter and energy are actually interchangeable, which Einstein discovered in the equation E = mc2.
a)
True
b)
False
20.
When you sit in the car while it's driving down a highway, you have a lot of _________ energy.
a)
Potential
b)
Kinetic
c)
Thermal
d)
Chemical
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