potential energy.
kinetic energy.
sound energy.
thermal energy
mixed review.
100
What is potential energy?
stored energy.
100
what is an example of kinetic energy at work?
A. a ball lodged in a tree. B. a frisbee flying through the air. C. a car in the garage.
100
in which directions do sound energy travel?
all directions.
100
Thermal energy is the energy that comes from?
heat.
100

The unit we use to measure work or energy 

joules

200
Which of these is an example of potential energy? A. a car going down a hill. B. a rollercoaster at the top of a hill. C. a person running. D. a bird flying.
B. A rollercoaster at the top of a hill.
200

true or false ? a galloping horse is not in motion.

FALSE

200
what happens to sound as it gets further away from the object making the sound?
the sound gets softer becausde the energy fades as it travels.
200
true or false; stoves and matches are example of objects that conduct thermal energy?
true.
200
can you create or destory energy?
no .
300
kinetic and potential energy both relate to?
motion
300
when is kinetic energy transferred from one object to another?
when objects collide.
300
what is sound energy?
energy generated by sound vibrations as they travel through a specific medium.
300
when you add ice to a warm drink, some of the drinks thermal energy is ______ to the ice which makes the drink cooler?
transferred.
300

The amount of work done in a certain time is called...

power

400

what type of potential energy does a battery have?

chemical

400
what does kinetic energy depend on?
the mass and speed of an object.
400

name an example of sound energy 

someone talking to another person. a harp string being plucked. a drum being beat.

400
are insulators bad conductors?
yes.
400
what are the three ways that thermal energy can be transferred?
convection; conduction; and radiation
500

what is the formula for gravtiational potential energy?

GPE=h a m

Height x acceleration x mass

500
running is what type of kinetic energy?
mechanical.
500

DOUBLE JEOPARDY!

how does sound echo?

it bounces off another surface.

500
can objects contain heat?
no, they contain thermal energy.
500

True or False?   

In a race, two cars have the same mass but different velocities.  The car with the lower velocity has                  kinetic energy than the other car.

TRUE

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