Science

Question 1

Medium

Answer 1

A substance which a wave moves

Question 2

Mechanical wave

Answer 2

A wave, such as a sound wave or seismic wave, that transfers kinetic energy through matter.

Question 3

Transverse wave

Answer 3

A type of wave in which the disturbance moves at right angles, or perpendicular, to the direction in which a wave travels

Question 4

Wave

Answer 4

A disturbance that transfers energy from one place to another without requiring matter to move the entire distance

Question 5

Longitudinal waves

Answer 5

A type of wave in which the disturbance moves in the same direction that the wave travels

Question 6

Crest

Answer 6

The highest point of a wave

Question 7

Trough

Answer 7

The lowest point, or valley of a wave

Question 8

Amplitude

Answer 8

The maximum distance that a disturbance causes a medium to move from its rest position

Question 9

Wavelength

Answer 9

The distance from one wave peak or crest to the next peak or crest.

Question 10

Frequency

Answer 10

The number of waves that pass a fixed point in a given amount of time, usually one second.

Question 11

Reflection

Answer 11

The bouncing back of a wave after it strikes a barrier

Question 12

Refraction

Answer 12

The bending of a wave as it crosses the boundary between two mediums at an angle other than 90 degrees

Question 13

Diffraction

Answer 13

The spreading out of waves as they pass through a opening or around the edge of an obstacle

Question 14

Interference

Answer 14

The meeting and combining of waves

Question 15

Electromagnetic wave

Answer 15

A type of wave, such as light wave or radio wave, that does not require a medium to travel

Question 16

Radiation

Answer 16

Energy that travels across distances in the form of electromagnetic waves.

Question 17

Electromagnetic spectrum

Answer 17

The range of all electromagnetic frequencies

Question 18

Radio waves

Answer 18

The part of the electromagnetic spectrum that consists of waves with the lowest frequencies

Question 19

Microwaves

Answer 19

Part of the electromagnetic spectrum that consists of waves with higher frequencies than infrared waves

Question 20

Visible light

Answer 20

The part of the electromagnetic spectrum that’s consists of waves detectable by the human eye

Question 21

Infrared light

Answer 21

Part of the electromagnetic spectrum that consists of waves with frequencies between those of microwaves and visible light.

Question 22

Ultraviolet light

Answer 22

The part of the electromagnetic spectrum that consists of waves with frequencies higher than those of visible light and lower than those x-rays

Question 23

X-rays

Answer 23

The part of the electromagnetic spectrum that consists of waves with high frequencies and high energies

Question 24

Gamma rays

Answer 24

Part of the electromagnetic spectrum that consists of waves with the highest frequencies

Question 25

Transmission

Answer 25

The passage of a wave through a medium

Question 26

Absorption

Answer 26

The disappearance of a wave into a medium

Question 27

Scattering

Answer 27

An object that orbits a more massive object

Question 28

Polarization

Answer 28

A way of filtering light so that all of the waves vibrate in the same direction

Question 29

Prism

Answer 29

An optical tool that uses refraction wavelengths that make up white light

Question 30

Primary colors

Answer 30

Three colors of light—red, green, and blue— that can be mixed to produce all possible colors.

Question 31

Primary pigments

Answer 31

Three colors of substances —cyan, yellow, and magenta— that can be missed to produce all possible colors.