Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Phys 100 > waves > Flashcards

waves Flashcards

0
Q

Which of the following will sound not travel through

  • air in bruner
  • water in lake
  • the space between the Earth and the Moon
A
  • the space between the Earth and the Moon
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
1
Q

In a longitudinal wave, in what direction are the vibrations relative to the direction of wave travel?

A

back and forth in the same direction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

When a source of sound approaches you, you detect an increase in its..

  • speed
  • frequency
  • wavelength
A

frequency

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Which of the following does not belong in the same group?

  • water waves
  • TV waves
  • light waves
  • microwaves
A

water waves

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

If the sky preferentially scattered red light, a sun set would appear..

A

blue-purple

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Consider dipping your fingers repeatedly into water and making waves. If you dip your fingers more frequently, the wavelength of waves..

  • lengths
  • shortens
A

shortens

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

The Doppler effect can be observed for..

  • sound waves only
  • light waves only
  • either a or b
  • neither a or b
A

either a or b

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Sound is generally a ____ wave.

A

longitudinal wave

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

During a single period, the distance a wave travels is..

  • 1/2 the wavelength
  • the wavelength
  • twice the wavelength
  • independent of the wavelength
A

the wavelength

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

The greenish-blue (cyan) color of water is due to the..

  • absorption of yellow light
  • absorption of blue light
  • absorption of red light
A

red light

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Some springs are connected to a bar. One is pulled back and allowed to vibrate. Other springs, similar to the first begin to vibrate. This is an example of..

  • forced vibrations
  • sympathetic resonance
A

sympathetic resonance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

If an electron vibrates vertically up and down, what direction will be polarized?

  • longitudinal
  • transverse, vertical
  • transverse, horizontal
A

transverse, vertical

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Most color printers only have magenta, yellow, and cyan inks. How can we get blue to print.

  • mix magenta and cyan
  • mix magenta and yellow
  • mix yellow and cyan
A

mix magenta and cyan

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

The sky is blue because of air molecules in the sky act as tiny..

  • scatters of high frequency light
  • scatters of low frequency light
  • prisms
  • incandescent blue-hot sources of light
A

scatters of high frequency light

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Bob stimulates a large motion in a flagpole by regularly pushing on it at its natural frequency. This phenomena is..

  • flourescence
  • forced vibrations
  • resonance
A

resonance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

On planet W, they have beautiful oceans of liquid stuff. We know that liquid stuff slightly absorbs blue light. What color are the beautiful oceans?

A

yellowish

16
Q

Polarization is a property of

  • transverse waves
  • longitudinal waves
  • both
  • neither
A

transverse waves

17
Q

Light from a regular light bulb is viewed through two polarizers. The first polarizer has its transmission axis vertical. How should the second polarizer be placed to have zero light transmitted.

  • vertical
  • horizontal
A

horizontal

18
Q

Of the following, which has a wavelength about the length of your arm (1 meter)?

  • Microwaves
  • Ultraviolet light
  • TV and FM radio waves
A

TV and FM radio waves

19
Q

An ampere is a unit of electrical..

  • pressure
  • resitance
  • current
  • all of these
A

current

20
Q

Compared to a single lamp connected to a battery, two lamps connected in parallel to the same battery will carry..

  • more current
  • less current
  • the same current
A

more current

21
Q

Compared to a single lamp connected to a battery, two identical lamps connected in series to the same battery will carry..

  • more current
  • less current
  • the same current
A

less current

22
Q

When we say an appliance “uses up” electricity, we really are saying that.

  • current disappears
  • electric charges are dissipated
  • electron kinetic energy is changed into heat
A

electron kinetic energy is changed into heat

23
Q

When astronomers observe the su, they see light coming from one edge having a higher frequency than from the other edge. This is due to..

A

the Doppler effect for light

24
Q

A difference between electric forces and gravitational forces is that electrical forces include..

  • separation distance
  • repulsive interactions
  • infinite range
A

repulsive interactions

25
Q

In an electrically neutral atom the number of protons in the nucleus is equal to the number of..

  • electrons that surround the nucleus
  • neutrons that surround the nucleus
  • both of these
A

electrons that surround the nucleus

Phys 100 (3 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions