Science

Question 1

Medium

Answer 1

Any substance that a wave moves through

Question 2

Mechanical wave

Answer 2

Waves that transfer energy through matter

Question 3

Transverse wave

Answer 3

The direction in which the wave travels is perpendicular

Question 4

Longitude wave

Answer 4

The wave travels in the same direction as the disturbance

Question 5

Crest

Answer 5

The highest point

Question 6

Trough

Answer 6

The lowest point

Question 7

Amplitude

Answer 7

The distance between a line through the middle of a wave and a crest or trough

Question 8

Wavelength

Answer 8

The distance from one wave crest to the very next wave crest

Question 9

Frequency

Answer 9

The number of waves passing a fixed point in a certain amount of time

Question 10

Reflection

Answer 10

The bouncing back of a wave after it strikes a barrier

Question 11

Refraction

Answer 11

The bending of a wave as it enters a new medium at an angle other than 90 degrees

Question 12

Diffraction

Answer 12

The spreading out of waves through an opening or around the edge of an obstacle

Question 13

Interference

Answer 13

The meeting and combining of waves

Question 14

Pitch

Answer 14

The characteristic of a highness or lowness of a sound

Question 15

Hertz

Answer 15

One complete wave, or cycle, per second

Question 16

Ultrasound

Answer 16

Sound waves in a range above 20,000 hertz

Question 17

Resonance

Answer 17

The strengthening of a sound wave

Question 18

Doppler effect

Answer 18

The change in perceived pitch that occurs when the source or the receiver of a sound is moving

Question 19

Intensity

Answer 19

The amount of energy its wave has

Question 20

Decibel

Answer 20

Used to measure sound intensity

Question 21

Amplification

Answer 21

The increasing of the strength of an electric signal

Question 22

Acoustics

Answer 22

The scientific study of sound

Question 23

Echolocation

Answer 23

Sending out ultra waves and interpreting the returning sound echoes

Question 24

Sonar

Answer 24

Instruments that use echolocation to locate objects

Question 25

Electromagnetic wave

Answer 25

A disturbance that transfers energy through a field

Question 26

Radiation

Answer 26

Energy that moves in the form of EN waves

Question 27

Electromagnetic spectrum

Answer 27

The range of all EM frequencies

Question 28

Radio waves

Answer 28

EM waves have the longest wavelengths, the lowest frequencies, and the lowest energies

Question 29

Microwaves

Answer 29

EM waves with shorter wavelengths, higher frequencies, and higher energy than other radio waves

Question 30

Visible light

Answer 30

The part of the EM spectrum that human eyes can see

Question 31

Infrared light

Answer 31

Consists of EM frequencies between micro waves and visible light

Question 32

Sound

Answer 32

A wave that is produced by a vibrating object and travels through matter

Question 33

Vibration

Answer 33

A rapid, back-and-forth motion

Question 34

Vacuum

Answer 34

Empty space

Question 35

Ultraviolet light

Answer 35

Consists of frequencies above those of visible light and partially below those of X-rays

Question 36

Incandescence

Answer 36

When a material gets it enough, it gives off light by glowing or by bursting into flames

Question 37

Luminescence

Answer 37

The production of light without the high temperatures needed for incandescence

Question 38

Bioluminescence

Answer 38

The production of light by living organisms

Question 39

Transmission

Answer 39

The passage of an EM wave through a medium

Question 40

Absorption

Answer 40

The disappearance of an EM wave into the medium

Question 41

Scattering

Answer 41

The spreading out of light rays in all directions, because particles reflect and absorb the light

Question 42

Primary colors

Answer 42

Three colors of light, which can be mixed to produce all possible colors

Question 43

Primary pigments

Answer 43

Cyan, yellow, and magenta

Question 44

Wave

Answer 44

A disturbance that transfers energy from one place to another