2. Chapter 4- Sound, Light, and Heat

3. _____________ is how high or low a sound is. Pitch

4. Energy in the form of vibrations passing through matter is______________. sound

5. _______________ is a measure of how strong a sound seems to us. Volume

6. ____________ is the number of waves that pass a point in a certain amount of time. Frequency

7. The height of a wave measured from its midline is ____________. amplitude

8. ____________ is the distance between a point on one wave and a similar point on the next wave. Wavelength

9. _______________ is energy that is sent out in waves. Radiation

10. _____________ occurs when light rays bounce off a surface back to your eyes. Reflection

11. A piece of glass that separates white light into its different wavelengths is a ________________ prism

12. ________________ is the transfer of heat that occurs when one thing touches another. Conduction

13. ________________ is the bending of light when it passes into a new medium. Refraction

14. ________________ is the transfer of thermal energy as matter moves. Convection

15. ________________ occurs when an object takes in light waves. Absorption

16. Sound is produced by ____________________. vibrating objects

17. The type of sound we hear is affected by : 1.the way an object is made 2. the way an object vibrates 3. a sound wave’s frequency 4. a sound wave’s energy

18. _______________ is made up of waves with different wavelength and frequencies. Visible light

19. Light can be: 1.refracted 2. reflected 3. absorbed

20. _________ is the transfer of thermal energy. Heat

21. Heat can move by: 1. conduction 2. convection 3. radiation

22. Other forms of energy can change to _____________. heat