Wave Parts
What is the top of a wave called?
Crest
What is transferred by radio waves?
Energy
Which material is probably solid?
Material 1 - 300,000 km/s
Material 2 - 298,000 km/s
Material 3 - 225,000 km/s
Material 4 - 125,000 km/s
Material 4 (it is moving the most slowly)
In a longitudinal wave, where are the particles most spread out?
Rarefaction
What is the lowest part of a wave called?
Trough
In which medium is the speed of a sound wave the greatest? [air in the classroom, iron railroad track, pool of water, vacuum in space]
iron railroad track
What is the name of the distance between the center line and the crest or trough of a wave?
Amplitude
What would produce mechanical waves? [burning candle, hitting a wall with a hammer, turning on a flashlight, or tying a rope to a doorknob]
hitting a wall with a hammer
If the energy carried by a wave increases, which other wave property also increases?
Amplitude
Wavelength
What does the amount of refraction of a wave depend on?
location of the normal line
What is the rate of how many waves there are per second?
Frequency
Which is an electromagnetic wave [flag waving in the wind, vibrating guitar string, changes in air from blowing a horn, waves that heat up water in the microwave]
waves that heat up water in the microwave
2 waves travel through each other, and a crest forms with an amplitude smaller than either original wave. What has happened?
Constructive interference
A vibration that produces a wave takes 0.5 seconds to complete. What is the frequency of the wave?
2 Hz