Chapter 4.7 Flashcards
1
Q
Rays
A
Narrow beams of light.
2
Q
Concave
A
Lens that is curved inwards.
3
Q
Convex
A
Lens that is curved outwards.
4
Q
Focal point
A
The point where light rays close in (converge) towards a point.
5
Q
Lateral inversion
A
Sideways reversal of images in a mirror.
6
Q
Refraction
A
Change in the speed of light as it passes from one substance into another. It usually involves a change in direction.
7
Q
Normal
A
Line drawn perpendicular to a surface at the point where a light ray meets it.
8
Q
Image
A
A picture of an object, which is taken by a camera or a phone.
