A fire produces
light and this
other type
of energy.
What is heat or thermal?
100
A circuit must be ____
to allow the
electricity to flow.
What is closed?
100
When light is absorbed
it produces this
type of energy.
What is thermal energy?
100
This is what happens to the overall amount of energy when a warm cup of water is placed into a cool container of water?
What is stays the same? (balances out)
(Warm water lost heat and the cool container gained heat)
200
Light travels in __________ lines.
What is straight?
200
We get this type
of energy from batteries.
What is chemical energy?
200
Plastic coating on a wire
is an insulator that
serves this purpose.
What is protect the person from the electricity?
200
Rubbing your hands
together which produces
heat is called this.
What is friction?
200
When people want to use water to create electricity they generally build a dam to hold the water back, creating a large lake behind the dam. Why is it necessary to hold the water back with a dam in order to produce electricity?
A. It increases the amount of water available.
B. It increases the force with which the water flows.
C. It forces the water to flow in the desired direction.
D. It makes the water still enough to create electricity.
What is choice B?
300
This depends on how
fast or slow the
object vibrates.
What is pitch?
300
The energy of motion
that does work
is called this.
What is mechanical energy?
300
This is what
materials are called
that allow
electricity to flow
through them.
What are conductors?
300
Heat naturally flows
in this direction.
What is to a colder object?
300
An advantage to using renewable energy sources is they won't be used up and depleted like _______ will.
What are fossil fuels? or What is nonrenewable energy?
400
When a short and a long
string are plucked the
short string produces this
type of pitch.
What is higher?
400
A roller coaster has
the greatest potential
energy when it is at
this position on the track.
What is the highest point?
400
The result of the balloons when one
negatively charged
balloon and one positively
charged balloon are
brought together.
What is attract?
400
Electricity can be
transformed
into these four
types of energy.
What is heat, light, sound, and kinetic?
400
A marble is sitting on a table and then falls. Describe its energy transfer.
What is potential to kinetic energy?
500
Light moves in
these three ways.
What is reflect, refract, and absorb?
500
These energy transfers
took place in order
for the windmill
to produce electricity.
What is wind to mechanical to electrical?
500
Jed discovered that two
batteries in a circuit made
the light bulb brighter.
What does he need to do
to make his
discovery valid?
What is repeat the experiment?
500
Placing a metal spoon in
a cup of hot chocolate
creates this.
What is transfer of thermal energy? or What is conduction?
500
The energy of motion that does the work, and is the total of the kinetic and potential energy.