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Flashcards in Light Test Deck (25):
1

What travels the fastest?

Light

2

What is the speed of light?

186,000 miles per second

3

How long does it take light to travel from the sun to the earth?

8.5 minutes

4

What type of light is made from its own energy?

luminous

5

If an object does not make it's own light it is

luminated

6

Does light travel in a straight line?

yes - until it hits something

7

After light hits something how does it travel?

in a wave like motion

8

What are the waves of light that we can see called?

visible light or a visible spectrum

9

How many visible colors are there?

7

10

What are the visible colors?

ROY G BIV

11

What color has the longest wave length?

Red

12

What color has the shortest wave length?

Violet

13

When traveling through a prism which color is bent the least?

Red

14

What is the top of a transverse wave called?

The crest

15

What is the bottom of a transverse wave called?

The trough

16

What is it measured when a wave travels quickly?

Frequency

17

What is amplitude?

it is how bright or how intense it is

18

What are the three ways that light interacts with objects?

Transparent, translucent and opaque

19

What is the definition of transparent?

Light can pass through

20

What is the definition of translucent?

semi solid - semi transparent

21

What is the definition of opaque?

can't see through it and light can't pass through

22

What happens when there is a rainbow?

drops of waters act like a prism

23

What happens to light when it is reflected?

bounces off at an equal angle to the incoming angle - example is a mirror

24

What happens to light when it is refracted?

when light goes through something and changes direction or is bent. - example is when light hits water

25

What is absorption?

When light is soaked up by something and turned into heat. Black objects absorbs all colors of light and create a lot of heat.