Light basics Flashcards
1
Q
how does light travel
A
straight lines
2
Q
what kind of waves are light travelled in
A
transverse
3
Q
how fast does light travel
A
300 million m/s
4
Q
why cant we hear, but see in space?
A
sound needs particles to trave, light doesnt
5
Q
what does luminous mean
A
anything that gives off light
6
Q
what do we say when light can go thru objects
A
that it transmits light
7
Q
whats the law of reflection
A
angle of indices = angle of reflection
8
Q
reflect means
A
light bounces off an object
9
Q
absorb
A
light is absorbed
10
Q
lateral means
A
sideways
