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20 questions
As a girl rolling down a grassy hill, her potential energy is being converted into ______ energy.
light
kinetic
heat
The Sun produces ______ and ______ energy.
light, thermal
thermal, sound
light, wind
It takes energy to stop an object that is in motion. Work must be done to the object, such as a push or pull to stop the motion.
True
False
An object in motion is changing its ___________.
position
source
name
Kinetic energy can be converted into ___________.
potential energy
motion
water
If your hand hits a volleyball, then the energy is transferred to ________.
your other hand
the ball
the air
nothing
The law on conservation states ____________.
that energy cannot be created or destroyed
energy can be destroyed
energy can be created, but not destroyed
A car is increasing in speed as it goes down the highway. This is showing potential energy being converted into kinetic energy.
True
False
What is the law of conservation of energy?
Energy can be destroyed and created.
Objects in motion stay in motion until a force is apllied.
Energy cannot be created or destroyed, it can only change form.
Energy can be stored in an object.
Why is a light bulb warm after it has been on for a few hours?
It has produced light energy.
It has produced mechanical energy.
It has produced thermal (heat) energy).
It has produced potential energy.
Potential energy can be converted into kinetic energy.
True
False
What is energy?
moving energy
stored energy
renewable energy
The ability to do work.
What is potential energy?
moving energy
stored energy
renewable energy
non renewable energy
What is kinetic energy?
moving energy
potential energy
stored energy
renewable energy
When energy changes from one form to another, we call it a _______________.
transformation
creation
expiration
compilation
A computer uses what type of energy to operate?
Mechanical
Light
Electric
Sound
Which is an example of light energy?
lawn mower
blender
flash light
speaker
Energy in motion is:
Potential Energy
Heat Energy
Electric
Kinetic Energy
The picture shows what type of transformation
Electrical to mechanical
light to electric
electrical to light
light to light
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