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Off the grid

Total questions: 45

Worksheet time: 43mins

Name
Class
Date
1.

Energy stored because of gravity is called:

a)

Gravitational Potential Energy

b)

Kinetic Energy

c)

Mechanical Advantage

d)

Chemical Energy

2.

At which point does the ball has the greatest gravitational potential energy (GPE)?

a)

A

b)

G

c)

D

d)

C

e)

G

3.

Which would have the LEAST gravitational potential energy (GPE)?

a)

A ball sitting on the ground

b)

Moon viewed from the Earth

c)

An airplane flying 30,000 feet above the ground

d)

A rock sitting on top of Mt. Everest

4.

How could you increase the gravitational potential energy of an object without changing its mass and gravity?

a)

Make the object larger

b)

Lower the object towards the ground

c)

Raise the object farther off the ground

d)

Allow the object to roll on the ground

5.
What will happen to the potential energy of the magnets as the N and S get close?
a)
increase
b)
decrease
c)
stay the same
d)
there is none
6.
What happens to the magnetic potential energy when the same poles are far apart?
a)
increases
b)
decreases
c)
stays the same
7.
Energy due to motion is ____________ energy. 
a)
Potential 
b)
Energy
c)
Kinetic
d)
Friction
8.
The faster an object moves, the ________ kinetic energy it has. 
a)
more
b)
less
c)
none of the above
d)
all of the above 
9.
__________ is stored energy. 
a)
Potential
b)
Kinetic
c)
None of the above 
d)
All of the above 
10.
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 
11.
The gravitational potential energy stored between an object and Earth depends on 
a)
The object's speed and height. 
b)
The object's mass and speed. 
c)
the object's size and weight. 
d)
The object's height and weight. 
12.
What kind of energy is in flowerpot sitting on a windowsill?
a)
Potential
b)
Kinetic
13.
What kind of energy is in a rock at the edge of a cliff?
a)
Potential
b)
Kinetic
14.
What kind of energy is in a moving skateboard?
a)
Potential
b)
Kinetic
15.
Can energy be destroyed?
a)
no
b)
yes
16.
Can energy be changed?
a)
yes
b)
no
17.
At which point is potential energy greatest?
a)
W
b)
X
c)
Y
d)
Z
18.
On a roller coaster, where is maximum kinetic energy?
a)
Near the bottom of a big hill
b)
When going around a corner
c)
When going upside down
d)
At the top of a big hill
19.

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.

20.

You throw a ball into the air as shown in the diagram. At what point does the ball have the most potential energy?

a)

W

b)

X

c)

Y

d)

Z

21.

At which position does the child on the swing have the most gravitational potential energy?

a)

W

b)

X

c)

Y

d)

Z

22.

When does a yo-yo have the most potential energy?

a)

When it's moving at its top speed.

b)

When it's moving between its highest and lowest points.

c)

When it's at its lowest point.

d)

When it's at its highest point.

23.
What is the energy involved in spinning?
a)
kinetic
b)
electrical
c)
chemical potential
d)
thermal
24.
Which electrical generator has this energy chain?
kinetic -> electrical
a)
wind
b)
natural gas
c)
nuclear
d)
solar panel
25.
What energy type powers a wind turbine?
a)
kinetic
b)
elastic
c)
electrical
d)
solar
26.
What two forces are required for generators and electric motors to work? 
a)
magnetism and thermal 
b)
electricity and thermal 
c)
electricity and magnetism 
d)
magnetism and radiant 
27.
Electricity is the flow of _________.
a)
Protons
b)
Neutrons
c)
Electrons
28.
Generators are devices that convert _____ energy into _____ energy.
a)
chemical; mechanical
b)
mechanical; electrical
c)
electrical; mechanical
d)
potential; kinetic
29.

In a _______ a spinning turbine moves magnets which generates an electric current.

a)

Motor

b)

Generator

30.
What can you use to make an electromagnet?
a)
Battery, nail and string 
b)
Battery, pencil and wire
c)
Wire, battery and iron ore (nail)
d)
Peanut butter, lampshade, hand sanitizer
31.
Electric fields are often associated with what other kind of field? 
a)
Magnetic Fields 
b)
Nuclear Fields 
c)
Particle Fields 
d)
Corn Fields 
32.
What device is made of coils of wire with an electrical current passing through it in order to generate a magnetic field?  
a)
Electromagnet 
b)
Generator
c)
Electron Magnet 
d)
Motor
33.
What happens to the strength of an electromagnet as you add more coils around it?
a)
Increases
b)
Decreases
c)
Stays the same
d)
Stops completely
34.
How are electromagnets different from magnets?
a)
magnets can be turned on/off
b)
you can turn an electromagnet on/off
c)
magnets are more powerful
d)
magnets have a North and South pole
35.

What is the transfer of energy in when you plug in a motor and it spins?

a)

chemical to mechanical

b)

electrical to mechanical

c)

mechanical to electrical

d)

physical to potential

36.
What energy do you put IN to a generator?
a)
Mechanical
b)
Electrical
c)
Thermal
d)
Potential
37.
What type of energy comes OUT of a generator?
a)
Mechanical
b)
Electrical
c)
Thermal
d)
Potential
38.
In an electric motor, the energy transformation begins as  ----
a)
electrical and becomes chemical
b)
mechanical and becomes electrical
c)
electrical and becomes mechanical
d)
mechanical and becomes chemical
39.

In an electric generator, the energy transformation begins as ----

a)

electrical and becomes chemical

b)

mechanical and becomes electrical

c)

electrical and becomes mechanical

d)

mechanical and becomes chemical

40.
When two magnets attract, they ______________
a)
push apart
b)
change color
c)
get colder
d)
pull together
41.
When two magnets repel, they ________________
a)
change color
b)
pull together
c)
push apart
d)
get colder
42.
True or False: A magnetic field is invisible.
a)
True
b)
False
43.

Which object shows an energy transformation from electrical to mechanical?

a)
b)
c)
d)
44.
Which of the following energy transformations occur when a lamp that is plugged into a wall socket is functioning correctly?
a)
Chemical to light
b)
Electrical to chemical
c)
Electrical to light
d)
Chemical to electrical
45.

Which items would have this energy transformation: mechanical energy -> electrical energy?

a)

turning on a flashlight

b)

nuclear power plant

c)

wind turbine turning

d)

tanning bed

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