Waves/Light/Law Of Reflection/Refraction

Question 1

Period - symbol, unit and defintion

Answer 1

T
S (seconds)
Time it takes for one cycle (wave)

Question 2

Frequency
Symbol
Unit
Defintion

Answer 2

f
Hz
How many waves in one second

Question 3

Wave length
Symbol
Unit
Defintion

Answer 3

ג
m (meters)
Has to start wherever it ended
Length of one wave

Question 4

Antinode
Crest
Trothe
Node

Answer 4

1) farthest from midline
2) peak - highest
3) low peak
4) on midline - no displacement

Question 5

Amplitude

Answer 5

Has to do with sound

The higer it is the louder it is

Question 6

Frequency represents
Meaning
The higher the frequency (faster)
The lesser the frequency

Answer 6

1) pitch
2) how high the vouce is
3) higher the pitch
4) lower the pitch = deep

Question 7

How to find the seconds in one wave

Answer 7

The whole time / the wave length

Question 8

How to find the wave length

Answer 8

Length of the whole wave / number of waves

Question 9

What does air do? What does the affect?

Answer 9

Compresses and elongates

Affects the travel of sound

Question 10

If you shine light at a _____
It will ____
What is this called?

Answer 10

Certain angle
It will bounce back at the same angle
Reflection

Question 11

What do we draw when dealing with law of reflection or refraction

Answer 11

Normal line

Question 12

The thicker the material ….

Answer 12

The more the light will bend

Question 13

What does the faster do?

Answer 13

Follow the slower

Question 14

What is the slower part? What will this make the light do?

Answer 14

In the thicker material

It will bend sharper - bend more

Question 15

N =

Meaning what

Answer 15

Index of refraction

How fast light will move and bend by

Question 16

Diffraction

Answer 16

When a wave encounters an obstacle it Bending - squeezing through or around

Question 17

Refraction for what

Answer 17

Just for light

Question 18

Interference

What are the two types - definition

Answer 18

1) two or more waves collide
Constructive - 2 or more waves enhance each other
Ex: crest + crest = bigger crest
Destructive - waves that will cancel each other out
Crest + troth = will not do anything

Question 19

What is the refracted angle from glass to air

Answer 19

90

Question 20

Total internal reflection

Answer 20

When the angle of refraction is 90° or greater that the total light is reflected back into the original material and no light enters the new material

Question 21

Critical angle

Answer 21

The maximum refracted angle possible that light would skim the surface boundary Btwn the two media
If exceeded light would no longer escape and be reflected back into the medium

Question 22

Mechanical waves

Ex

Answer 22

A wave that needs a material to carry on the wave

Water wave, rope, human wave

Question 23

Electromagnetic wave

Ex

Answer 23

No medium

Radio, uv, gamma ray, X-ray

Question 24

Transverse wave

Ex

Answer 24

The wave moves up and down but the energy moves perpendicular to the material
Vibration in a guitar string, S waves, surface waves

Question 25

Longitudinal/compressional waves

Ex

Answer 25

Waves that energy and material move in the same way

Sound slinky pwave

Question 26

Two types of mechanical waves

Answer 26

Tran severe and longitudinal