Wave Calculations

Two boats are anchored in the harbor, separated by a horizontal distance of 18 m. The boats bob up and down as waves enter the harbor. When one boat is at its highest point, the other is at its lowest point and there is one wave crest between them.

What is the wavelength of the wave?

• 18 m

• 36 m

• 12 m

• 9 m

Tags

NGSS.HS-PS4-1

Two boats are anchored in the harbor, separated by a horizontal distance of 18 m. The boats bob up and down as waves enter the harbor. Each boat makes exactly 3 complete up-and-down cycles every 12.0 s.

What is the period of the wave?

• 4 s

• 4 Hz

• 36 s

• 0.25 Hz

Tags

NGSS.HS-PS4-1

Two boats are anchored in the harbor, separated by a horizontal distance of 18 m. The boats bob up and down as waves enter the harbor. Each boat makes exactly 3 complete up-and-down cycles every 12.0 s.

What is the frequency of the wave?

• 4 s

• 4 Hz

• 36 s

• 0.25 Hz

Tags

NGSS.HS-PS4-1

Two boats are anchored in the harbor, separated by a horizontal distance of 18 m. The vertical distance between a boat's highest and lowest position is 4.8 m. 

What is the amplitude of the wave?

• 4.8 m

• 9.6 m

• 18 m

• 2.4 m

Tags

NGSS.HS-PS4-1

Two boats are anchored in the harbor, separated by a horizontal distance of 18 m. If the wavelength of the water waves they experience is 15 m and the frequency is 0.2 Hz, what is the speed of the waves?

• 3 m/s

• 5 m/s

• 30 m/s

• 18 m/s

Tags

NGSS.HS-PS4-1

Two notes are played at the same time. One has a frequency of 412 Hz and the other has a frequency of 408 Hz. What would be the beat frequency that you hear?

• 410 beats per second

• -4 beats per second

• 4 beats per second

• You would not hear any beats.

Tags

NGSS.HS-PS4-1

Two notes are played at the same time. One has a frequency of 256 Hz and the other has a frequency of 270 Hz. What would be the beat frequency that you hear?

• 265 beats per second

• -14 beats per second

• 14 beats per second

• You would not hear any beats.

Tags

NGSS.HS-PS4-1