Physics 11.8 Mid-Unit Assessment

Which of the following are found in longitudinal waves? Select all that apply.

• Crest

• Trough

• Compression

• Rarefaction

• Amplitude

Tags

NGSS.MS-PS4-1

Which of the following is a difference between transverse and longitudinal waves? Select all that apply.

• Transverse waves move parallel to the medium, while longitudinal waves move parallel to the medium.

• Transverse waves move perpendicular to the medium, while longitudinal waves move parallel to the medium.

• A transverse wave’s energy is stored in the crest and trough, while a longitudinal wave’s energy is stored in its compressions and rarefactions.

• A longitudinal wave’s energy is stored in the crest and trough, while a transverse wave’s energy is stored in its compressions and rarefactions.

Pair each wave with its correct description.

• Mechanical wave

• A wave that requires a medium through which to travel

• Seismic wave

• A wave that consists of a single traveling vibration or movement

• Periodic wave

• A wave that propagates through the Earth

• Pulse

• Pulse waves repeated over time

Pair each wave description with its correct wave type.

• A water wave vibrates in a circular motion across the medium’s top level.

• Surface wave

• A sound wave

• Longitudinal wave

• A water wave moves north and south, as the medium moves east and west.

• Transverse wave

Tags

NGSS.MS-PS4-1

Match each quantity to its correct unit of measurement.

• Period

• m

• Wavelength

• m/s

• Wave speed

• Hz

• Frequency

• s

A transverse wave displays oscillatory motion because energy moves around a fixed position, which is called its _______ position. Its amplitude experiences a _______ displacement from this fixed position, which forms the wave’s crest and trough.

• equilibrium, maximum

• equilibrium, minimum

• central, maximum

• central, minimum

Tags

NGSS.MS-PS4-1

A wave has a velocity of 105 m/s and a wavelength of 10.5 m. It has a frequency of _______ and a period of ________; these two values are _______ one another.

• 10 Hz, 0.1 s, Inverses of

• 0.15 Hz, 0.15 s, Equal to

• 5 Hz, 0.2 s, Inverses of

• 20 Hz, 0.05 s, Inverses of

In simple harmonic motion an object will oscillate between maximum displacement and equilibrium. The __________ is the force that pulls the object towards the equilibrium.

• Gravitational force

• Equilibrium Force

• Restoring Force

• Normal Force

12. As a pendulum swings back and forth from its highest point through the equilibrium the energy in the pendulum is __________.

• Converted from gravitational potential energy at the maximum displacement to kinetic energy at the equilibrium.

• Converted from spring energy at the maximum displacement to kinetic energy at the equilibrium.

• Converted from gravitational potential energy at the equilibrium to kinetic energy at the maximum displacement.

• Converted from gravitational potential energy at the equilibrium to spring energy at the maximum displacement.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-2

NGSS.MS-PS3-5

If the energy in a longitudinal wave travels from south to north, the particles of the medium would be vibrating __________.

• perpendicular to the direction of wave travel

• parallel to the direction of wave travel

• in a circular motion

• in a random direction