Lab: Electromagnetic Induction — Cumulative exam Answers
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A charged particle moves at 2.5 × 104 m/s at an angle of 25° to a magnetic field that has a field strength of 8.1 × 10–2 T.
A
3.7 × 10–5 CB
4.1 × 10–5 CC
8.8 × 10–5 CD
1.0 × 10–4 C22
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What best describes the motion of the medium particles in a longitudinal wave?
A
The medium does not move.B
The medium moves in all directions.C
The medium vibrates as it moves in a circular path around the wave.D
The medium vibrates parallel to the direction of the wave.23
A lab cart with a mass of 15 kg is moving with constant velocity, v, along a straight horizontal track. A student drops a 2 kg mass into it from directly above, and the cart continues moving.
A
15vi + 2vf= 15(0)+ 2viB
15vi + 2(0) = 15vf + 2(0)C
15vi + 2(0) = (15 + 2)vfD
15(0) + 2vi = (15 + 2)vf24
Consider the ranges of pitches made by these instruments and vocals.
A
clarinet, bassoon, piccolo, soprano vocalB
piccolo, oboe, standup bass, tenor vocalC
tuba, bass guitar, violin, piccoloD
violin, clarinet, French horn, tuba25
_______interference occurs when two waves overlap and the resulting wave has a larger amplitude.
A
DestructiveB
ConstructiveC
ReflectionD
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