Across
- 2. the quality of a sound governed by the rate of vibrations producing it; the degree of highness or lowness of a tone.
- 5. a force that holds back the movement of a sliding object.
- 8. energy the energy which is stored in the bonds of chemical compounds (molecules and atoms).
- 9. energy a kind of kinetic energy with the ability to make types of light visible to human eyes.
- 10. the bending of light where two different materials touch.
- 11. energy energy that's stored in charged particles within an electric field
- 12. energy: the result when a force, either sound or pressure, makes an object or substance vibrate.
Down
- 1. energy the moving energy (kinetic energy) of an object plus that object's stored energy (potential energy)
- 3. energy: the energy an object has because of the movement of its molecules, and heat can be transferred from one object to another object
- 4. the rapid back-and-forth motion of an object or particle
- 6. how light bounces off surfaces
- 7. take in
