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15 Cards in this Set

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  • Back
Q
What is a wave?
A
A disturbance (vibration) that transfers energy from place to place. The vibration IS the wave.
Q
What is energy?
A
the ability to do work
Q
What is a medium?
A
the material through which a wave travels
Q
What is a mechanical wave?
A
A wave that requires a medium through which to travel
Q
What causes waves?
A
Waves are created when a source of energy causes a medium to vibrate.
Q
What is a vibration?
A
a repeated back-and-forth or up-and-down motion.
Q
What are the 3 types of waves?
A
1. transverse waves
2. longitudinal waves
3. surface waves
Q
What are transverse waves?
A
Waves that move the medium at right angles to the direction the waves are traveling.
Q
What are longitudinal waves?
A
Waves that move the particles of the medium parallel to the direction the waves are traveling.
Q
Name 2 parts of a longitudinal wave.
A
compressions and rarefactions
Q
In a longitudinal wave, what are the compressions?
A
The parts where the medium particles are CLOSE together. (ex. the coils are close together)
Q
In a longitudinal wave, what are the rarefactions?
A
The parts where the medium particles are spread out. (ex. the coils are spread out)
Q
What are surface waves?
A
a combination of transverse and longitudinal waves. (ex. ocean waves)
Q
What are the highest parts of a transverse wave called?
A
crests
Q
What are the lowest parts of a transverse wave called?
A
troughs (trawfs)