11. False, the pitch of a sound wave depends on its frequency.
12. True, sound waves can be reflected, refracted, and diffracted.
13. False, wavelength and frequency are inversely proportional.
14. True, light waves can be polarized.
15. False, transverse waves have particles that vibrate perpendicular to the direction of the wave.
16. True, the electromagnetic spectrum includes radio waves, microwaves, infrared radiation, visible light, ultraviolet radiation, X-rays, and gamma rays.
17. False, the speed of light is approximately 300,000 kilometers per second.
18. True, constructive interference occurs when waves combine and their amplitudes add together.
19. False, FM radio signals use frequency modulation, while AM radio signals use amplitude modulation.
20. True, waves carry energy, but they do not carry matter.
Waves Unit Test (Connexus)
1. A sound wave needs a medium to travel, while a light wave does not.
2. Sound waves travel at a slower speed than light waves.
3. by gathering a group of coils together and observing its compressions and rarefactions
4. in the direction of the wave
5. a longitudinal wave with a frequency of 1 Hz and whose particles are very tightly packed within its compressions
6. The answer cannot be determined with this information.
7. A digital signal from the website is converted to analog in the phone.
8. Digital has more clarity, but analog is more accurate.
9. The amplitude of the wave would increase but the wavelength would remain the same.
10. Analog signals can encode a greater range of data than digital signals.
1 answer
5 answers