What is your first and last name?

Which number represents the wavelength of the wave?

• 1

• 2

• 3

• 4

Answer explanation

Distance between 2 crests

Tags

NGSS.MS-PS4-1

How many complete waves are shown in the diagram?

• 0

• 1

• 3

• 5

Answer explanation

A complete wave has a crest AND a trough

Tags

NGSS.MS-PS4-1

Which term defines the distance between A and E?

• Amplitude

• Frequency

• Speed

• Wavelength

Answer explanation

A and E are both crests. Wavelength is the distance between two crests.

Tags

NGSS.MS-PS4-1

Which statement correctly compares waves A and B?

• Wave B has a greater amplitude than wave A.

• Wave A has a greater amplitude than wave B.

• Wave B has a greater frequency than wave A.

• Wave A has a greater frequency than wave B.

Answer explanation

The crest of B is higher than A, so B has a greater amplitude. Their frequencies are the same because they both have 3 crests.

Tags

NGSS.MS-PS4-1

Which is measured by the distance between two troughs of the wave?

• Amplitude

• Frequency

• Speed

• Wavelength

Answer explanation

Troughs are two points that are the same. The distance between them is the wavelength.

What property of the wave is the student changing?

• Amplitude

• Frequency

• Speed

• Wavelength

Answer explanation

The height of the waves are changing so they are changing the amplitude.

Tags

NGSS.MS-PS4-1

What is the term for the maximum height of the ribbon?

• Amplitude

• Frequency

• Wavelength

• Speed

Answer explanation

height = amplitude

Tags

NGSS.MS-PS4-1

If the force that produces the wave is increased in strength, what must be true?

• W will increase.

• X will increase.

• Y will decrease.

• Z will decrease.

Answer explanation

More force would increase the amplitude. Therefore, W would increase.

(While Y could also show the amplitude, the answer says Y would DECREASE. That is wrong)

Tags

NGSS.MS-PS4-1

What is the amplitude of the wave in the diagram?

• 1 meter

• 2 meters

• 180 meters

• 360 meters

Answer explanation

Amplitude is height from rest to crest.

Tags

NGSS.MS-PS4-1