Ch 6: 4.15.19 Daily Quiz material (no new math)

Question 1

areas of maximum movements in a standing wave

Answer 1

antinodes

Question 2

shock wave created when an object outruns its own sound

Answer 2

sonic boom

Question 3

what does it mean if a star is red shifted?

Answer 3

the star is going away from us

Question 4

what does it mean if a star is blue shifted?

Answer 4

the star is going towards us

Question 5

a wave where both ends are fixed

Answer 5

standing wave

Question 6

areas of minimum movements in a standing wave

Answer 6

nodes

Question 7

the motion of an object when the applied force is in sync with the object’s natural vibration

Answer 7

resonance

Question 8

the thin area of a sound wave

Answer 8

rarefactions

Question 9

3 features of shock waves are?

Answer 9

• they have a beginning and an end
• they’re cone-shaped
• they’re continuous

Question 10

the thick area of a sound wave

Answer 10

compressions

Question 11

how does the doppler effect occur?

Answer 11

as the source comes toward the observer the wave gets “bunched” up to a higher frequency. when the source is going away from the observer the wave gets spread out

Question 12

the change in frequency of a wave as the relative distance between source and observer changes

Answer 12

doppler effect