All About Waves
What is a wave?
A disturbance that transfers energy from one place to another without transferring matter.
True or False:
All mechanical waves travel in matter and water.
False
All mechanical travel only in matter.
What is an electromagnetic wave?
A wave that can travel through empty space and matter.
What is wavelength?
The length between the two peaks (crests) or two troughs.
True or False:
Only energy is transferred as a wave moves.
True.
What are the two types of waves?
Longitudinal and transverse.
What are 3 examples of mechanical waves?
Sound waves, water waves, and seismic waves.
What two components are electromagnetic waves made up of?
What is amplitude?
The height of the peak (power of the wave - i.e. sea waves).
What are the 7 types of wave?
Radio waves, microwaves, infrared waves, visible light, ultraviolet, x-rays, and gamma rays.
What are two examples of waves?
Mechanical and electromagnetic.
True or False:
Mechanical waves travel through different mediums.
True
True or False:
Matter is necessary in electromagnetic waves.
False.
What is frequency?
The number of complete waves (oscillations) per second.
What is refraction in a light wave?
When a wave bends when it enters a medium at a different speed.
What is wave speed related to?
Frequency and wavelength.
Can mechanical waves travel through vacuum?
No.
Are electromagnetic waves faster in a liquid or gas medium?
What is speed?
The distance a wave can travel at any given time.
What is the chart that shows different light waves called?
The Electromagnetic Spectrum.
True or False:
All waves have an amplitude.
True.
Are mechanical waves faster in solids or liquids?
Solids.
Are electromagnetic waves faster in vacuum or a liquid medium?
Electromagnetic waves are faster in a vacuum medium.
What is the trough in a wave?
The minimum or lowest part of the wave.
True or False:
Water travels with waves.
False
Water doesn't actually travel with a wave.