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Flashcards in Light test Deck (20)
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1
Q

Light rays travel

A

in a straight line

2
Q

light is visible

A

energy

3
Q

in order to see an object it must give off or reflect?

A

wavelengths of visible light and the light must enter your eyes

4
Q

transmission

A

the physical process of light passing through matter

5
Q

medium

A

the substance through which light travels

6
Q

types of matter are (3)

A

transparent, translucent, or opaque

7
Q

transparent

A

matter that allows light to pass clearly through it

8
Q

translucent

A

objects that allow some light to pass through, but not all

9
Q

opaque

A

matter that does not allow light to pass through

10
Q

reflection

A

light bouncing off a surface

11
Q

refraction

A

the bending of light when it passes from one transparent material to another

12
Q

prism

A

refract white light and breaks it into a band of colors

13
Q

absorption

A

energy from light being taken in by an object

14
Q

black

A

all colors are absorbed
absorbs the most light
hottest color to wear on a sunny day

15
Q

white

A

no colors are absorbed
all colors reflected
coolest color to wear on a sunny day

16
Q

shadow

A

absence of light

17
Q

shadows occur?

A

an object blocks the light

18
Q

colors of visible light

A

ROYGBIV

19
Q

primary colors of light

A

red, blue, and green

20
Q

why does the sky look blue?

A

because particles in the Earth’s atmosphere cause blue light to scatter more than the other colors in the visible light spectrum