Reflection
Chapter 29
Refraction
Test Your Luck
General Knowledge
100
A line that is at Right Angles to the surface
Normal Line
100
T or F- Reflection occurs when one part of a wave travels more slowly than another part 

False

100
Refraction is the ............. of waves?
bending
100

Light travels how? in what direction?

Straight lines.

200
State the Law of Reflection
The angle of incidence is always equal to the angle of reflection.
200

What is a reverberation

Multiple reflections of sound

200
Refraction of light is caused by?
1. Light passing from one medium to another. 2. Slowing of speed of light.
200

Speed of Light?

300,000 km/s

200

What is the Visible light Spectrum?

White light that has refracted into the colours of the rainbow.

300

Why is lettering on the front of some vehicles written backwards?

So it can be easily read through a mirror.

300

Lens with the thinest part in the middle?

Concave or Diverging Lens.

300

Refracted light in the atmosphere is called 

Mirage

300
Light is what type of wave?
Transverse wave.
300
What is Light?
Light is a form of energy and is part of the Electromagnetic Spectrum seen to us as visible light.
400
The type of image formed by a plain mirror?
Virtual Image.
400

In a rainbow, the outermost color in is  and why?

Red because the red light wave is longer and is bends (refracts) less.

400

What conditions produce a mirage?

It occurs when there is heat near the surface bending the light but we don't see the bend therefore we see another object: optical illusion

400

When light hits a rough surface and is reflected in many different directions?

Scatter. Diffused reflection

400
What is the difference between: a) Transparent b) Translucent c) Opaque
a) Lets all light through b) Lets some of the light through c) Does not allow any light through
500
You are standing 5Ft away from a plain mirror, how far away is the image?
10ft
500

What process occurs when light passes through a prism and separates into a spectrum?

Dispersion

500

What is it call when different mediums bend light differently angles?

Refractive Index 

500

Name 2 things that happen to white light in water droplets to create a rainbow

Reflection and Dispersion of light into colors.

500

Can you hear noises a long distance away over water at night because 

Because air is cooler over the lake and and sound is refracted down from the warm air above.

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