AP Physics 2: 14.1 - 14.3

Quiz on 04/02/2025

D) D

B) Hang a block of greater mass from the string.

D) Sound waves are longitudinal waves. Particles in the medium move parallel to the direction of wave propagation.

B) B

B) L_Y > (L_X = L_Z)

D) The pulse speed is the same in both trials. The string’s tension and mass per length are the same in the two trials.

B) Wave Pulse 1 carries more energy than Wave Pulse 2.

D) v₃ > v₁ > v₂

C) No. The speed at which a wave pulse propagates along a string is independent of the amplitude of the wave.

D) D

A) The frequency increases. The speed of the wave on the string increases.

C) Setup C

C) C

B) Yes. The amplitude and the frequency of a wave are independent of each other.

A) Speaker X. The frequency is greater for Speaker X.

C) h₂ > h₃ > h₁

A) Yes, the claim is correct. A wave pulse incident on a boundary between two mediums will result in both a reflected and a transmitted wave or wave pulse.

D) D

D) The frequency stays the same in the thick string. A wave’s frequency does not change when it travels from one medium to another.

C) C

D) The mass per length is greater for String Y than for String X.

A) A

B) B

B) The driver in Car 1 hears a higher frequency than the driver in Car 2. Car 2 is moving away from the speaker faster than Car 1.

C) f₁ > f₂. The car and truck are moving toward each other at time t₁ and have the same velocity at time t₂.

A) The two cars could be moving in the same direction, with Car 1 behind and moving faster than Car 2.

B) f₃ > f₂ > (f₁ = f_R)

B) f₁ > f₀ > f₂

C) No. The diagram indicates that the waves reaching Student 1 have a lower frequency than the waves reaching Student 2.

C) 2f_{beat, 1}

B) |(1/T_A) - (1/T_B)|

A) The two waves pulses exhibited constructive interference.

D) 3 : 7

D) Pulse Y must displace the string downward.

C) 2(v/L)

D) (v_S/4)(|(1/L₂) - (1/L₁)|)

A) 1: 2