Types of Radiation
Models of Light
Interactions of Light
Mirrors
Lenses & The Eye
100

This type of electromagnetic radiation helps us see.

Visible Light.

100

We use visible light to model other types of radiation for this reason.

It's safe.

100

The name of the beam of light that travels towards the reflecting surface.

Incident ray.

100

The shape of a convex mirror.

Curved out; capital D.

100

The shape of a diverging lens.

Hourglass; bends in.

200

This type of electromagnetic radiation has the highest energy, and shortest wavelength.

Gamma Rays.

200

The Ray Model of light describes light as this.

Straight line arrows.

200
What happens when light travels through one medium to another.

Refraction.

200

According to the Laws of Reflection for a plane mirror, the angle of reflection is always equal to this.

Angle of incident.

200

A converging lens bends light this way.

Towards a focal point.

300

This type of electromagnetic radiation helps us produce vitamin D and get a wicked tan.

Ultraviolet light.

300

This colour in the visible light spectrum has the shortest wavelength.

Violet.

300

What happens when light hits the black letters on a page that allows you to see them.

Absorption.

300

The spot where all reflected rays meet after bouncing off a concave mirror.

Focal point.

300

Light bends this way when moving from a more dense medium to a less dense one.

Away from the Normal.

400

These types of electromagnetic waves are used by emergency responders for communication.

Radio waves.

400
The name Albert Einstein gave to the discrete packages of light he described.

Photons.

400

The descriptor for a material that absorbs or reflects all wavelengths of light.

Opaque.

400

The difference between a virtual image and a real image.

Location; Real image in front of the mirror, virtual image is behind the mirror.

400

The shape of the lens in your eye.

Convex / Converging.

500

Iodine-131 is a radioisotope that gives off this type of electromagnetic radiation, used in medical imaging.

Gamma rays.

500

According to the photoelectric effect, blue light gives off electrons when it hits a metal surface because of this property.

High energy; higher frequency, shorter wavelength.

500

The imaginary line that is perpendicular to a reflective surface.

Normal.

500

The size of your face when looking into a convex mirror.

Larger.

500

The part of your eye that changes light energy into chemical energy to send signals.

Retina.