Waves

Question 1

Medium

Answer 1

A medium is any substance that a wave moves through

Question 2

Mechanical wave

Answer 2

Waves that transfer energy through matter are known as mechanical waves

Question 3

Transverse wave

Answer 3

In a transverse wave, the direction in which the wave travels in perpendicular, or at right angles, to the direction of the disturbance

Question 4

Longitudinal wave

Answer 4

In a longitudinal wave the wave travels in the same direction as the disturbance

Question 5

Crest

Answer 5

A crest is the highest point, of a wave.

Question 6

Trough

Answer 6

A trough is the lowest point, or valley, of a wave

Question 7

Amplitude

Answer 7

Amplitude for a transverse wave is 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 crest is called the wavelength

Question 9

Frequency

Answer 9

The number of waves passing a fixed point in a certain amount of time is called the frequency

Question 10

Reflection

Answer 10

The bouncing back of a wave after it strikes a barrier is called reflection

Question 11

Refraction

Answer 11

Refraction is the bending of a wave as it enters a new medium an angle other then 90 degrees

Question 12

Diffraction

Answer 12

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

Question 13

Interference

Answer 13

Interference is the meeting and combining of waves

Question 14

Electromagnetic spectrum

Answer 14

The range of of all EM frequencies is known as the electromagnetic spectrum, or EM spectrum

Question 15

Radio waves

Answer 15

Radio waves are EM waves that have the longest wavelengths, the lowest frequencies, and the lowest energies

Question 16

Microwaves

Answer 16

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

Question 17

Visible light

Answer 17

Visible light Is the part of EM spectrum that human eyes can see

Question 18

Infrared light

Answer 18

The infrared light part of the spectrum consists of EM frequencies between microwaves and visible light

Question 19

Ultraviolet light

Answer 19

The ultraviolet light part of the EM spectrum consists of frequencies above those of visible light and partially below those of x-rays

Question 20

X-Rays

Answer 20

X-Rays have frequencies from about 1016 Hz to 1021 Hz.

Question 21

Wave

Answer 21

A wave is a disturbance that transfers entry from one place to another

Question 22

Transmission

Answer 22

Transmission is the passage of an EM wave through a medium

Question 23

Absorption

Answer 23

Absorption is the disappearance of an EM wave into the medium

Question 24

Scattering

Answer 24

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

Question 25

Polarization

Answer 25

Polarization is a quality of light in which all of its waves vibrate in the same direction

Question 26

Prism

Answer 26

A prism is a tool that uses refraction to spread out the different wavelengths that make up white light

Question 27

Primary colors

Answer 27

These three colors of light, which can be mixed to produce all possible colors, are called primary colors

Question 28

Primary pigments

Answer 28

The primary pigments are cyan, yellow, and magenta.

Question 29

Gamma rays

Answer 29

Gamma rays have frequencies from about 1019 Hz to more than 1024 Hz.

Question 30

Prism

Answer 30

A prism is a tool that uses refraction to spread out the different wavelengths that make up white light

Question 31

Primary colors

Answer 31

These three colors of light, which can be mixed to produce all possible colors, are called primary colors

Question 32

Primary pigments

Answer 32

The primary pigments are cyan, yellow, and magenta.

Question 33

Gamma rays

Answer 33

Gamma rays have frequencies from about 1019 Hz to more than 1024 Hz.