Light

Question 0

True or False: the colors of the EM spectrum are ROY GBIG

Answer 0

False.

Question 1

The frequency continuum of electromagnetic waves…

Answer 1

The electromagnetic spectrum

Question 2

True of False: visible light is between infrared and x-Ray.

Answer 2

False.

Question 3

True of False: the unit of light intensity is the light year.

Answer 3

False

Question 4

True or false: microwaves are on the EM spectrum.

Answer 4

True

Question 5

A light sources power, the rate at which it radiates energy is ___?

Answer 5

Intensity.

Question 6

A line with a arrow head showing direction is ____?

Answer 6

Ray.

Question 7

The type of reflection of smooth, flat surfaces is called ___?

Answer 7

Specular reflection.

Question 8

The type of reflection off rough and uneven surfaces?

Answer 8

Diffuse reflection.

Question 9

The SI unit of light intensity.

Answer 9

Candela.

Question 10

The light ray approaching the reflected surfaces is the ___?

Answer 10

Incident ray.

Question 11

The outgoing ray after it has reflected off the surface is ___?

Answer 11

Reflected ray.

Question 12

The light produced by materials til they glow.

Answer 12

Incandescent.

Question 13

The angle of the incident ray is ___?

Answer 13

Angle of incidence.

Question 14

Light occurring when a substance radiates visible light as it absorbs a higher rate of energy is ___?

Answer 14

Fluorescence.

Question 15

An image seen where no real object exists.

Answer 15

Virtual image.

Question 16

The angle of the reflected ray?

Answer 16

Angle of reflection.

Question 17

True or False: a beam is lots of photons moving in the same direction.

Answer 17

True.

Question 18

True or False: when rays of light converge they produce a virtual image.

Answer 18

False.

Question 19

True or False: a virtual image is the same as a real image.

Answer 19

False.

Question 20

True or False: A point in front of a mirror where light rays converge is focal length.

Answer 20

False.

Question 21

True of False: a ray is line with an arrowhead showing direction.

Answer 21

True.

Question 22

It’s slightly dished in in the reflected side?

Answer 22

Concave.

Question 23

A mirrors surface bulged outward.

Answer 23

Convex.

Question 24

All frequency humans can see?

Answer 24

Visible light.

Question 25

The SI unit for light intensity?

Answer 25

Candela.

Question 26

Substances emitting visible light after a substance has been exposed?

Answer 26

Phosphoresce.

Question 27

State the law of reflection!