Behavior of Mechanical Waves

When a mechanical wave travels from its source, the wave's energy decreases. Why?

• Period decreases

• Wavelength decreases

• Amplitude decreases

• Frequency decreases

Tags

NGSS.MS-PS4-1

Four different waves, A, B, C, and D are moving through a medium. A has the greatest frequency, followed by B, C, then D. Which of these waves will lose the most energy when passing through the medium?

• A

• B

• C

• D

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

When a mechanical wave encounters and enters a new medium

• Absorption

• Transmission

• Reflection

• Mechanical wave

Tags

NGSS.MS-PS4-2

Which describes the amplitude of a wave?

• A wave is 5 meters long.

• A wave has a height of 5 meters.

• A wave has a frequency of 5 Hz.

• A wave takes 5 minutes to pass a point.

Tags

NGSS.MS-PS4-1

What is represented by 1 on the diagram?

• wavelength

• amplitude

• frequency

• crest

Tags

NGSS.MS-PS4-1

Determine the frequency of the model.

• 4

• 3

• 2

• 1

Tags

NGSS.MS-PS4-1

In reference to mechanical waves, what is a medium?

• the size between small and large

• the air the waves travel in

• material through which a wave travels

• a model that waves travel through

Tags

NGSS.MS-PS4-1

What medium does sound travel through slowest?

• gas

• solid

• liquid

• trees

Tags

NGSS.MS-PS4-2

A student holds two vibrating objects.  Object A is vibrating faster than object B.  Which statement is true?

• A is louder than B

• B is louder than A

• A will have a higher pitch than B

• B will have a higher pitch than A

The medium converting the energy of a mechanical wave

• Absorption

• Transmission

• Reflection

• Mechanical wave

Tags

NGSS.MS-PS4-2