Waves, Light and Sound

Question 1

Trough

Answer 1

the lowest point of a transverse wave

Question 2

Resonancy

Answer 2

adding energy at the natural frequency of an object

Question 3

Crest

Answer 3

highest point of a transverse wave

Question 4

Wavelength

Answer 4

length from one trough to the next

Question 5

Standing wave

Answer 5

a wave in a medium in which each point on the axis of the wave has an associated constant amplitude.

Question 6

Diffraction

Answer 6

the bending of light around the corners of an obstacle or aperture into the region of geometrical shadow of the obstacle

Question 7

Amplitude

Answer 7

measures the energy of the wave

Question 8

Rarefaction

Answer 8

the more spread out coils in a longitudinal wave

Question 9

Wave

Answer 9

repeating disturbance that transfers energy through matter or space

Question 10

Refraction

Answer 10

waves bending because of a change in spped

Question 11

Transverse wave

Answer 11

the medium vibrates perpendicular to the direction the wave travels in

Question 12

Compression

Answer 12

when you squeeze the coils of a spring together

Question 13

Medium

Answer 13

the material through which a mechanical wave travels

Question 14

Interference

Answer 14

when two waves combine to form a new wave

Question 15

Sound is the transfer of….

Answer 15

energy

Question 16

Sound travels fastest in:

Answer 16

solids

Question 17

For a sound with a low pitch, what is also low?

Answer 17

frequency

Question 18

Sound can not travel through…

Answer 18

empty space

Question 19

Doppler Effect

Answer 19

the change in pitch or wave frequency due to the source of the sound wave moving relative to the listener

Question 20

Use of X-Rays

Answer 20

take images of the human body

Question 21

Use of microwaves

Answer 21

Television Satellites

Question 22

Use of radio waves

Answer 22

TV video and audio signals

Question 23

Use of ultraviolet and gamma rays

Answer 23

Kills germs

Question 24

Use of Infrared waves

Answer 24

Heat transmission from the sun

Question 25

Electromagnetic

Answer 25

Waves made by vibrating charged that can travel without a medium

Question 26

Gamma rays

Answer 26

Highest frequency electromagnetic waves

Question 27

Gps

Answer 27

System of satellites, ground monitoring stations, and receivers that can determine a persons location

Question 28

Microwaves

Answer 28

Radio waves in wavelengths less than a meter

Question 29

Photons

Answer 29

Particles of radiant energy

Question 30

Radio

Answer 30

Electromagnetic waves with the longest wave length