Unit 3 Review

Light travels as a _____________ wave

• mechanical

• electromagnetic

The distance from the crest of one wave to the crest of the next wave is ________________

• frequency

• wavelength

• amplitude

• wave period

___________ is the number of waves produced in a given amount of time and is expressed in hertz.

• amplitude

• wavelength

• frequency

• wave period

sound is a _____________ wave because it cannot travel without a medium.

• mechanical

• electromagnetic

___________ is the transfer of info from one person or group of people to another.

• frequency

• talking

• communication

• wave

Waves are two things, what are they?

• mediums

• transfer of energy

• frequency of matter

• disturbances

What do waves travel fastest through?

• solids

• liquids

• gases

What is the term for the distance from one crest to another?

• wavelength

• frrequency

• speed

• amplitude

Which direction do longitudinal waves travel?

• in random directions

• circular motions

• parallel to the direction of the wave

• up and down

what is the speed of a wave with a wavelength of 2 cm and a frequency of 10 hz?

• 15 cm/s

• 24 cm/s

• 20 cm/s

• 5 cm/s