LIGHT
1. When light
hits a surface it bounces off. This is called ……………………………….
2. The angle
at which light …………………………. from a flat surface is ……………… as
the angle at which it hit it.
3. When a
beam of light enters a block of glass at an angle its direction changes. This
is called …………………..….
4. When a
beam of light bounces back from a mirror its speed is ………………………..…
the speed of the light before it hit the
mirror.
5. When a
beam of light enters a block of glass its speed is ……………….……………..…
the speed of the light when it was moving
in air.
6. Light is a
form of ……………………………………….. radiation.
7. When white
light enters a prism at an angle the red light is bent …………………...
than the blue light.
8. Write down
three uses for flat mirrors:
(a)
…………………………………………………………………………………………………..
(b)
…………………………………………………………………………………………………..
(c)
……………………………………………………………………………………………………
9. A
………………………………………… lens brings light to a focus.
10. Write
down three uses for the type of lens mentioned in question 9.
(a)
…………………………………………………………………………………………………..
(b)
…………………………………………………………………………………………………..
(c)
……………………………………………………………………………………………………
