Brainscape's Knowledge GenomeTM

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


See full index

Physics 1 > Exam 1 > Flashcards

Exam 1 Flashcards

You may prefer our related Brainscape-certified flashcards:
Physics 101 flashcards AP® Physics flashcards
1
Q

What are the 2 ways to transmit information and energy in the universe?

A

Particle and Wave Motion

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

What is vibration?

A

wiggle in time

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

What is a wave?

A

wiggle in time and space; disturbance transmitted through a medium

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

True or False. The time to swing depends on the length of the pendulum and not the mass.

A

True

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

What happens to the time if you increase the pendulum?

A

increases

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

What happens to the time if you decrease the pendulum?

A

decreases

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

What is frequency and what are the units?

A

the number of vibrations per unit of time made by the vibrating force
Units- cycles per second Hertz (Hz)

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

What is wavelength and what are the units?

A

distance between adjacent crests in a transverse wave; distance a wave travels during 1 vibration
Units- meters of feet

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

What are the parameters of a longitudinal wave?

A

rarefactions and compressions

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

What are rarefactions?

A

regions of low density

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

What are compressions?

A

regions of high density

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

Wave speed is dictated by ______.

A

medium

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

Wave frequency is dictated by _____.

A

source

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

True or False. Wave interference is a characteristic of all waves.

A

True

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

What is constructive interference?

A

crests and troughs are superimposed; waves are in phase

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What is destructive interference?

A

crests are superimposed with troughs; waves are out of phase

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What is a standing wave?

A

looks like a wave is standing still; 2 waves of equal amplitude and wavelength pass through each other in opposite directions

18
Q

What is the doppler effect?

A

change in frequency when there is relative motion between an observer of waves and source of the waves

closer together= observe higher frequency than what’s emitted
farther apart= observe lower frequency than what’s emitted

19
Q

True or False. All waves exhibit the doppler effect.

A

True

20
Q

What are bow waves?

A

waves in front of moving object pile up; creates wave barrier

21
Q

What are shock waves?

A

object flies faster than the waves (result is cone-shaped)

22
Q

What is subsonic?

A

slower than the speed of sound

23
Q

What is supersonic?

A

faster than the speed of sound

24
Q

How do you calculate wave speed?

A

wavelength/time

25
Q

What is the human hearing range?

A

20 Hz to 20,000 Hz

26
Q

What is infrasonic?

A

frequencies below 20 Hz

27
Q

What is ultrasonic?

A

frequencies above 20,000 Hz

28
Q

What are the poor and good conductors of sound?

A

poor conductor - air
good conductor - solid & liquid

29
Q

What does the speed of sound in the air depend on?

A

wind, temp, and humidity

30
Q

Does sound speed increase or decrease with humidity?

A

increases

31
Q

Does sound speed increase or decrease with a high temp?

A

increases

32
Q

True or False. The speed of sound is faster in solids and liquids.

A

True

33
Q

What happens in a reflection of sound? What is an example?

A

waves change media
Ex: echoe

34
Q

What is reverberation?

A

prolonging of sound by reflection

35
Q

What is acoustics?

A

the study of sound properties

36
Q

What is it called when the wave front bends?

A

refraction

37
Q

What is resonance?

A

successive impulses are implied to a vibrating object in time with its natural frequency; results in increased amplitude

38
Q

What are beats?

A

fluctuating loudness due to 2 tones of slightly different frequencies that are sounded together

39
Q

What does AM stand for?

A

amplitude modulation

40
Q

What does FM stand for?

A

frequency modulation

41
Q

What are the 3 characteristics of a musical tone?

A

pitch, loudness, and quality

42
Q
A

Physics 1 (3 decks)

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