7.1 SEEING THINGS

Question 1

What is light?

Answer 1

A way of transferring energy

Question 2

What is luminous?

Answer 2

Object that gives out light

Question 3

What is non-luminous?

Answer 3

Object that does not give out light

Question 4

Why do you see things?

Answer 4

It reflects light and is luminous

Question 5

How does light travel?

Answer 5

In a straight line

Question 6

What is transparent?

Answer 6

See through

Question 7

What is translucent?

Answer 7

Lets light through but is not see through

Question 8

What is opaque?

Answer 8

Light can’t pass through

Question 9

What are the three things light can do?

Answer 9

Can be transmitted (Light goes through a medium)
Can be reflected (Light bounces off surface)
Can be absorbed (Light does not pass through, energy converts to heat)

Question 10

How are shadows created?

Answer 10

Light tries to go through an opaque surface but is reflected and absorbed.

Question 11

Does light need a medium?

Answer 11

No

Question 12

What happens when light is absorbed?

Answer 12

When absorbed stays in the object in the form of thermal energy