Waves up to standing

The moving black dot is called:

• a node
• an anti-node
• an anti-amplitude
• the wangy bit

Tags

NGSS.HS-PS4-1

The stationary dot is called:

• a node.
• an anti-node.
• the amplitude.
• the not moving bit.

Tags

NGSS.HS-PS4-1

What are the boundary conditions for these standing waves?

• Anti-nodes at each end.
• The surface of the string is smooth.
• The string is free at both ends.
• There is a node at each end.

An open pipe (80 cm long) makes a tone travelling at 330 m/s. Calculate the first harmonic wavelength.

• 40 cm

• 80 cm

• 120 cm

• 160 cm

Tags

NGSS.HS-PS4-1

An open pipe (40 cm long) makes a tone travelling at 330 m/s. Calculate the frequency of the fundamental wave.

• 4.125 Hz

• 264 Hz

• 26400 Hz

• 412.5 Hz

Tags

NGSS.HS-PS4-1

Standing waves are created by

• Two identical waves reflecting off each other

• Two identical waves being diffracted together

• Two identical waves move through each other in opposite directions

• Two identical waves are diffracted from two identical sources

Tags

NGSS.HS-PS4-1

In the diagram which letters represent the nodes

• A B C

• A C E

• B D

• B D E

• A C D

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-5

What kind of wave is pictured?

• Transverse
• Longitudinal
• surface
• none of the above

Tags

NGSS.MS-PS4-1

The lowest point on a wave is the:

• Amplitude
• Crest
• Trough
• Wavelength

The wave in this picture represents a ____ wave.

• transverse
• longitudinal
• mechanical
• electromagnetic