Light

What is light?

• Light is a form of energy that enables us to see.

• Light is a form of energy that pollutes the planet.

How does light propagate?

• It propagates through air

• It propagates through waves.

How does light travel?

• It travels in a straight line.

• It travels fast and slow.

What travels the fastest?

• Plane

• Light

Transparent is:

• it means light completely passes through it

• it means that some light passes through it

• it means no light can pass through it

Translucent is:

• it means no light can pass through it

• it means that some light passes through it

• it means light completely passes through it

Opaque is:

• it means light completely passes through it

• , it means that some light passes through it

• it means no light can pass through it.

What is Reflection?

• It is when light rays BOUNCES OFF

• It is when light rays BEND

Refractions is when light rays bend

• True

• False