1)The Wavelength of a Transverse Wave Can Be Measured from Crest To

Waves Test

1)The wavelength of a transverse wave can be measured from crest to

a)trough.

b)node.

c)crest.

d)antinode.

e)rest position.

2)If a wave generator makes 3 waves in one minute, what is the frequency?

a)0.05 Hz

b)20 Hz

c)3 Hz

d).33 Hz

3)A sound wave can travel at 1200 m/s underwater. What is the wavelength of a 105 Hz whalesong note?

a).09 m

b)11 m

c)105 m

d).01 m

4)A guitar player plays two notes and hears a 3 Hz beat frequency. If the first note is 440 Hz, what could the second note be?

a)1320 Hz

b)147 Hz

c)400 Hz

d)443 Hz

5)The apparent change in frequency caused by a moving source or receiver is called the

a)Doppler effect.

b)anthropic principle.

c)total internal reflection.

d)constructive interference.

e)destructive interference.

6)When a wave reaches a boundary, which of the following can happen? (mark all that apply)

a)Confusion

b)Reflection

c)Refraction

d)Radiation

e)Absorption

7)Light is a(n) ______wave.

a)longitudinal

b)electromagnetic

c)carcinogenic

d)surface

e)torsional

8)The lowest frequency that a resonating pipe (or other object) is making is called the

a)overtone.

b)harmonic.

c)spectrum.

d)Doppler shift.

e)fundamental.

9)What are the primary colors of light? Bubble the correct colors.

a)Red

b)Blue

c)Yellow

d)Green

e)Cyan

10)A wave that has the medium moving in the same direction as the wave is moving is called a ______wave.

a)longitudinal

b)electromagnetic

c)transverse

d)surface

e)torsional

11)The area on a standing wave that appears not to be moving at all is called a(n)

a)antibody.

b)anitdisestablishmentarianism.

c)antithesis.

d)antinode.

e)node.

12)If a wave on a low density string reaches a high density string the reflection returns

a)erect

b)inverted

c)no reflection will occur

d)there is not enough information to tell

e)it will depend on the amplitude of the

13)What is the frequency of the 3rd harmonic for an open pipe resonator that is 1.0m long?

a)343Hz

b)172Hz

c)514Hz

d)85.75Hz

e)There is not enough information.

14)A light wave in air hits a plane mirror at an angle of 54 below the normal. At what angle will the wave reflect?

a)45 above the normal

b)54 above the normal

c)45 below the normal

d)54 below the normal

e)both b and c

15)What is the speed of light?

a)1.24x103 m/s

b)2.88x10-5 m/s

c)3.00x10-8 m/s

d)3.00x108 m/s

e)6.67x10-11 m/s

16)The Illuminance 1.2m under a 1270lumen light bulb is

a)70. lux

b)880 lux

c)84 lux

d)2.3x104 lux

e)1270 lux

17)Echoes demonstrate ______of sound waves.

a)refraction

b)interference

c)diffraction

d)reflection

18)Sound waves are ______waves.

a)longitudinal

b)electromagnetic

c)transverse

d)karma

e)torsional

19)Middle C on a piano vibrates 252 times per second (=252 Hz). What is the period of this wave?

a)252 s

b)3.97x10-3 s

c)252 Hz

d)3.97x10-3 Hz

20)What is the frequency of that piano string?

a)252 s

b)3.97x10-3 s

c)252 Hz

d)3.97x10-3 Hz

21)What is the wavelength of light that has a frequency of 3.52x1012Hz?

a)9.74x10-11m

b)8.40x10-5m

c)1.07x1021m

d)9.74x10-11Hz

e)8.40x10-5Hz

22)Light can be transmitted through empty space.

a)True

b)False

23)Sound can be transmitted through empty space.

a)True

b)False

24)A person shouts “hello” at a distant building and the echo returns in 1.5 seconds. How far away is the building?

a)I am an extinct bat.

b)510m

c)260m

d)1029m

e)2.3x108m

25)Saturn is 1.4x1012m away from the sun. How long would it take a light signal to reach Saturn from the sun?

a)9.3s

b)4.6s

c)4700s

d)9300s

e)Light takes no time to travel because it is instantaneous.

26)An unpolarized beam of transverse waves is one in which the vibrations

a)are all parallel to each other

b)are all parallel to the direction the wave is travelling.

c)have not passed through a polarizer.

d)are in all directions perpendicular to the direction the wave is traveling.

e)originated at the equator of the earth.

27)A beam of light hits the boundary between the air and a block of glass (n=1.5) at an angle of 45. What angle does the light make with the normal once it enters the glass?

a)45

b)28

c)18

d)1.06

28)The bending of light when it enters a new medium is called

a)reflection

b)refraction

c)absorption

d)total internal reflection

e)consternation

29)The part of a wave that bounces off a boundary between two media is called

a)reflection

b)refraction

c)absorption

d)total internal reflection

e)consternation

30)The amplitude of a sound wave is commonly called

a)timbre.

b)pitch.

c)loudness.

d)harmonic spectrum.

e)eructation.

Answers;