8th Grade Remediation Part 2

The interaction of waves combining and making the loudness of sound waves softer is called —

• destructive interference

• crest enhancement

• constructive interference

• frequency distribution

Which interval represents one full wavelength on the transverse wave?

• Point A to Point I

• Point C to Point E

• Point E to Point I

• Point F to Point H

The frequency of a wave is observed twice over time. The frequency of this wave is —

• decreasing

• increasing

• staying the same

• fluctuating

What numbers should be labeled rarefaction in the longitudinal wave?

• 2 & 4

• 1 & 3

• 1 & 2

• 3 & 4

If the amplitude of a sound wave was increased, what would happen to the sound made by this wave?

• It would have a lower pitch.

• It would have a higher pitch.

• It would get softer.

• It would get louder.

Which electromagnetic wave travels the fastest?

• All travel at the same speed

• Radio waves

• Gamma Rays

• Visible waves

The wave interaction shown above is caused when the wave passes from one medium to another changing —

• speed

• amplitude

• frequency

• length

Which statements about the electromagnetic spectrum are correct?

• Visible waves have a shorter wavelength than ultraviolet waves.

• X-ray waves have a shorter wavelength than visible waves.

• Ultraviolet waves have a higher frequency than infrared waves.

• Radio waves have a lower frequency than infrared waves.

• Gamma ray waves have lower frequency than x-ray waves.

What type of lens creates the image seen in the eyeglasses?

• Reflection

• Concave

• Convex

• Plane

Which electromagnetic wave DOES NOT match its potential use?

• Radio waves - To send communications, including video, to space

• Microwaves- To cook food

• Gamma Rays- To tan the skin in a tanning bed

• Infrared Rays- To identify heat signatures of people lost in the wilderness

• X-Ray- To produce an picture of the internal structure of the body