vocabulary
What type of energy does a 4th grader have when they are running at recess?
Kinetic
Light travels in what kind of path?
Straight
Waves
What is heat traveling in waves called?
radiation
A firetruck's siren is an example of what kinds of energy?
Sound and light
What state of matter do sound waves travel fastest through?
Solid
Which of the following would be the best conductor?
Wood, aluminum, plastic
What is heat traveling through liquid or gas called?
A form of energy that allows you to see other objects is ____
Light
When you hear a sound, how do the sounds travel to our ears?
Waves
What is stored energy called?
Potential
The law of conservation of energy means no energy can be ______ or _______
created or destroyed
particles
Which types of matter can sound waves travel through?
Solid, liquid, gas
What is the energy of motion called?
Kinetic
As the amount of force on an object increases, the acceleration of the object _________
increases
What kind of heat energy transfer is this: feeling heat by warming your hands over a fire
Christmas lights on a tree are an example of what kind of energy?
Light
Why do astronauts need to use a radio to communicate in space?
Space if a vacuum, there is no medium for sound waves to travel through.
Why can sound waves not travel in space?