Light Energy

Front

Energy waves bouncing off a surface

Back

reflection

Front

A student is looking directly at a lit nightlight through two different cardboard tubes. Through which tube, if any, will the light be seen and why? Options: 1. The bent tube only because the light bounces off the sides of the tube and travels through the tube to the student’s eye. 2. The straight tube only because the light travels in a straight line directly to the student’s eye. 3. Both tubes because light travels equally well along straight and curved paths. 4. Neither tube because both tubes absorb all of the light.

Back

The straight tube only because the light travels in a straight line directly to the student’s eye.

Front

Energy waves that bend when passing through a medium

Back

refraction

Front

Why can the light reach the ceiling when Mike changes the angle of the mirror?

Back

travels in straight lines and reflects from the surface of the mirror

Front

A clear piece of curved glass or plastic that refracts (bends) light energy.

Back

lens

Front

Visible light the eye can see

Back

light spectrum

Front

A reflective surface: paper, lens, wood, mirror

Back

mirror

Front

To make bigger in size

Back

magnify

Front

An instrument that uses mirrors and/or lenses to see objects far away.

Back

telescope

Front

What happens when a pencil is placed in a cup of water?

Back

It looks broken but isn't.