Physics Q1 Reviewer 1

A periodic transverse wave of amplitude and period travels along a massless, infinite string at a velocity to the right. Consider a point P on the slinky.

After one period, how much distance did point P travel?

• 0

• A

• 2A

• 4A

After one period, what is the average velocity of point P?

• 0

• A/T

• 2A/T

• v

In what direction is point P currently moving?

• No direction, v=0

• To the right

• Upwards

• Downwards

A mechanical wave transports…

• Matter only

• Energy only

• Both Matter and Energy

• Nothing

Mitsuha shakes the end of a very long uniform red string (see above). The resulting transverse waves travel at a velocity 𝑣 to the right. What happens to 𝑣 if she shakes the end of the string twice as fast?

• 𝑣 will be twice as fast

• 𝑣 will be half as fast

• 𝑣 will not change

Shown are three waves that were sent down a very long string at different times under the same tension.

Which of the following is true about their wavelengths?

• B > A > C

• C > A > B

• C > B > A

• A = B = C

Which of the following is true about their speed?

• A > B > C

• C > A > B

• C > B > A

• A = B = C

Which of the following is true about their frequency?

• A > B > C

• C > A > B

• C > B > A

• A = B = C

Two waves travel on the same string. Which of the following is NOT true?

• The two waves can have different frequencies

• The two waves can have different wavelengths

• The two waves can have different amplitudes

• The two waves can have different speeds

Consider a long uniform heavy rope hanging from the ceiling. You send a wave from the bottom of the rope. What happens to the speed of the wave as it goes up the rope?

• It increases

• It decreases

• It stays the same

• It increases, then decreases