What do we get most of our light energy from?
What is the sun
Can sound be heard in space?
What is the energy that allows us to see objects?
What is light energy
Light travels in what kind of line?
What is a straight line
What does all sound start with?
What are vibrations
What is an example of a vacuum?
What is space
What do solar cells hit to create electricity?
What medium does sound travel fastest through?
What is a solid?
What is an example of a medium?
What is a solid, liquid, or gas
Why can you see light in space?
Compressions and refractions are parts of what?
What are waves
Light is a form of what type of radiation?
what is electromagnetic radiation
Light travels through tiny what?
what are photons of energy
Why is sound energy a type of kinetic energy?
What is the movement of vibration and particles
Why do sound waved travel fastest through solids?
What is close particles