chapter 4 vocab

Question 0

Crest

Answer 0

The highest point in a wave.

Question 1

Amplitude

Answer 1

The height of a wave crest or depth of a wave through a measured form the waves rest position; a measure of energy carried by the wave.

Question 2

Energy

Answer 2

The capacity for applying a force.

Question 3

Frequency

Answer 3

in a wave, the number of repetitive motions, or vibrations that occur in a given time, measured in cycles to second or hertz.

Question 4

Through

Answer 4

The lowest point in a wave.

Question 5

Wave

Answer 5

A repeating disturbance or movement that transfers energy through matter or space without causing any permanent displacement of material.

Question 6

Wave length

Answer 6

The distance from one point on the wave the same point on the nearest wave example from the crest to crest or through to through.

Question 7

Light

Answer 7

The form of electromagnetic energy we can see.

Question 8

Reflection

Answer 8

The visible effect when light strikes an object and bounces off.

Question 9

Refraction

Answer 9

The bending or changing direction of a wave as it changes speed in moving from one material to another.

Question 10

Visible light

Answer 10

Electromagnetic waves with wavelengths of 750 billionth to 400 billionths of a meter, which can be detected by human eyes; also called the visible spectrum.

Question 11

Wave model of light

Answer 11

A model of light behavior that represents light traveling as a wave.

Question 12

Electromagnetic radiation

Answer 12

The transmission of energy in the form of waves or rays from the longest radio waves to the shortest gamma rays.

Question 13

Gamma rays

Answer 13

Electromagnetic radiation having the highest energy and frequency and shortest wavelength in the electromagnetic spectrum.

Question 14

Infrared rays

Answer 14

Electromagnetic radiation that has a wavelength longer than the red end of the the visible spectrum but shorter than that of radio waves.

Question 15

Microwaves

Answer 15

A type of radio wave that has the shortest wavelength of radio waves.

Question 16

Radio wave

Answer 16

The type of electromagnetic wave that has a wavelength longer than about 1 mm; used for communication.

Question 17

Ultraviolet waves

Answer 17

Electromagnetic radiation that has a wavelength shorter then that of the violet end of the visible spectrum the but longer then that of X rays

Question 18

X rays

Answer 18

Electromagnetic radiation having shorter wavelengths and higher energy and frequency than ultraviolet rays.

Question 19

Spectrum

Answer 19

A range of frequencies for a given type of radiation.