Chapter 1 - Light Flashcards
1
Q
What does light travel in?
A
Waves
2
Q
Why can light waves travel in a vacuum?
A
Because they don’t need air particles to travel through, unlike sound.
3
Q
What is the speed of a light wave?
A
300,000,000m/s
4
Q
What kind of lines does light travel in?
A
Straight lines
5
Q
How do shadows form?
A
When light is blocked by an opaque object
6
Q
What does transparent mean?
A
Something that transmits light clearly
7
Q
How do we see luminous objects?
A
Because the light travels from them into our eyes
