PS 1 Study Guide

Light travels from a source in straight lines in _____ direction(s).

• one

• two

• five

• all

What are four conditions you need to see ?

• steam, light source, eye, and darkness

• light source, eye, object, and clear path

• light source, shadow, path, and darkness

• there are no conditions

Optical Illusions are

• make you feel hungry

• make you dream at night

• trick your brain to think you are seeing something that is not there

• trick your hands into writing and you do not realize it

Light is continuously moving.

• True

• False

A _______ is formed when an object's blocks the light source

• optical illusion

• eye

• light source

• shadow

The shape of a shadow depends on the _______________ of the object.

• shape

• weight

• height

• balance

When an object is closer to the surface and further to the _________ source the shadow will be smaller.

• shade

• light

• dark

• paint

in the lab exploring light we used the flashlight and shone light on a mirror. What happened?

• absorb

• transmit

• reflect

• none of the above

Bouncing light will scatter when

• it is bounced off a smooth surface.

• it is transmitted through glass.

• it is bounced off a rough surface.

• it is turned on and off quickly.

Transmission means

• lights is stopped at the surface of an object.

• lights goes through an object.

• light bounces off an object.

• light is changed to heat.