True-false questions - use plus (+) to indicate true and zero (O) to indicate false.
Physical Science Week 32 Vocabulary Test Name ____________________ ________ 1. Waves are an indication of kinetic energy.
________ 2. All waves travel through matter and space.
________ 3. The density of a wave's medium affects the speed of the wave.
________ 4. A wave in which the motion of the medium is at right angles to the direction of the wave is a transverse wave.
________ 5. The high point on a transverse wave is called a trough.
________ 6. Sound waves are transverse waves.
________ 7. All waves have an amplitude, wavelength, and frequency.
________ 8. The unit to measure wave frequency is called the Hertz.
________ 9. The bending of a wave due to a change in speed is called reflection.
________ 10. The interaction of two waves is called interference.
________ 11. When a wave moves through matter, particles of the matter do not move along in the direction the wave is traveling.
________ 12. As the density of a wave's medium increases, the speed of the wave increases.
________ 13. A sound wave travels faster in air than in water.
________ 14. Wavelength can be defined as the distance from the crest of one wave to the crest of the next wave.
________ 15. A wave is a disturbance in a medium.
________ 16. The maximum distance the molecules of a medium are displaced from their rest position is call the amplitude of a wave.
________ 17. The speed of a wave is equal to its frequency time its amplitude.
________ 18. A wave is reflected when it strikes a boundary and bounces back.
________ 19. The bending of waves around the edge of a barrier is called diffraction.
________ 20. In a longitudinal wave, the motion of the medium id parallel to the direction the wave is traveling.