physics - waves

Question 1

A wiggle in both space and time is a ___________________.

Answer 1

wave

Question 2

A wiggle in time is a __________________.

Answer 2

vibration

Question 3

The source of all waves is _______________________.

Answer 3

vibrations

Question 4

Both a transverse wave and a longitudinal wave have ____________________.

Answer 4

transport energy without transporting matter

Question 5

The frequency of a certain wave is 10 Hz and its period is _________________.

Answer 5

0.1 s

Question 6

If you double the frequency of a vibrating object, its period _______________.

Answer 6

halves

Question 7

All waves have in common a ________________________.

Answer 7

vibrating source

Question 8

The compressions and rarefactions in a longitudinal wave travel in ______________________________.

Answer 8

the same direction as that of the wave.

Question 9

Give examples of longitudinal waves.

Answer 9

sound waves, tsunamis, vibrations in springs

Question 10

The vibrations of a transverse wave move in what direction?

Answer 10

right angles

Question 11

The vibrations of a longitudinal wave move in what direction?

Answer 11

parallel to the direction of wave

Question 12

Give examples of transverse waves.

Answer 12

radio, ocean waves, electromagnetic waves

Question 13

What equation(s) are used for wave speed

Answer 13

speed = wavelength x frequency

Question 14

what is the wave speed of a wave traveling an average distance of 6 meters in one second?

Answer 14

The wave speed would be 6 m/s

Question 15

Interference is a property of what type of waves

Answer 15

Both transverse and longitudinal waves

Question 16

A node is a position of

Answer 16

minimum displacement in a standing wave

Question 17

The Doppler effect is a characteristic of what kinds of waves?

Answer 17

sound waves, light waves, water waves

Question 18

A Doppler effect occurs when a source of sound moves in what direction?

Answer 18

When a source of sound moves towards and away from you (either)

Question 19

A red shift for light indicates that the light source is moving in what direction?

Answer 19

moving away from the observer

Question 20

A blue shift for light indicates that the light source is moving in what direction?

Answer 20

moving towards the observer

Question 21

An aircraft that flies faster than the speed of sound is said to be ________________.

Answer 21

supersonic

Question 22

A sonic boom is produced by an airplane flying at a speed _____________________________________.

Answer 22

greater than the speed of sound

Question 22

The approximate range of human hearing is ____________________.

Answer 22

20 Hz to 20,000 kHz

Question 23

A wave of frequency of 1000 Hertz vibrates at ________________.

Answer 23

1,000 cycles per second

Question 24

Sound travels fastest in what types of material and slowest in what types of material?

Answer 24

Sound travels fastest in solids and slowest in gas

Question 25

Sound waves can not travel in __________.

Answer 25

vacuum

Question 26

The speed of sound depends on ________________.

Answer 26

the medium in which it travels

Question 27

The speed of a sound wave in air depends on ________________.

Answer 27

the temperature of the air

Question 28

Sound travels faster in air if the air temperature is ______.

Answer 28

warm

Question 29

One reason for the higher pitch of your voice after you inhale helium is that sound travels _______________.

Answer 29

faster in helium than in air

Question 30

know the different parts of a wave