Waves

Question 1

How does a lens form an image

Answer 1

Light is refracted into the focal point

Question 2

Types of lens

Answer 2

Concave and convex

Question 3

What do waves transfer

Answer 3

Energy

Question 4

Speed of sound in air

Answer 4

340m/s

Question 5

What happens when Waves at the boundary of two materials

Answer 5

It refracts and changes speed

Question 6

Equation for magnification of a lens

Answer 6

Image size / object size

Question 7

Human hearing

Answer 7

20 to 20000hz

Question 8

Oscilloscope

Answer 8

A machine that show the waves shape of an electric signal

Question 9

Speed of all em waves

Answer 9

300×10⁶m/s

Question 10

Examples of medical uses of xray

Answer 10

Seeing bones,internal images

Question 11

Reflection from a smooth surface

Answer 11

Specular reflection

Question 12

Reflection from rough surface

Answer 12

Diffuse reflection

Question 13

What determines the color of a visible spectrum

Answer 13

Frequency/wavelength

Question 14

How does a prism split white light

Answer 14

Retracts different frequencies of light

Question 15

List the colours of the visible spectrum in order

Answer 15

Red,orange,yellow,green,blue,indigo,
Violet

Question 16

State em spectrum in order of increasing frequency

Answer 16

Radio microwave infrared,visible uv x Ray gamma

Question 17

Example of medical use through gamma rays

Answer 17

Cancer treatment and sterialization of medical equipment

Question 18

What happens to waves when it refracts

Answer 18

Wavelength and frequencies change

Question 19

Differences between myopia and hyperopia

Answer 19

Myopia short sighted can see stuff close to the other one is long sighted can see stuff far away from them

Question 20

Wavelength of high and low pitch

Answer 20

High has long frequencies
Low has short frequencies

Question 21

Two uses of em spectrum

Answer 21

X rays see internal structures
Microwaves for cooking

Question 22

Amplitude

Answer 22

The height from rest to the topos wave

Question 23

Wavelength

Answer 23

Length wave from one point of the wave to the same point of the other wave

Question 24

50 hz meaning

Answer 24

50 vibrations per sec

Question 25

Longitudinal

Answer 25

Vibration is parallel to energy transfer

Question 26

Transverse

Answer 26

Vibration Perpendicular to energy transfer

Question 27

Equation for frequency wavelength and wave speed

Answer 27

v = f λ .

Question 28

I wouldn’t say that the ways are in the Water moving not the water that

Answer 28

When the rubber duck thing is moving in the water is up and down not side to side

Question 29

What’s an ultrasound

Answer 29

Medical imaging shattering of kidney stones

Question 30

What is the wave equation

Answer 30

Wave speed = frequency x wavelength

Question 31

How do you sound travel how they pass through the ear

Answer 31

Longitudinal wave through.
The Pinner then eardrum then ossicles then cohlea auditory nerve then brain

Question 32

Visible spectrum in order of the smallest frequency

Answer 32

Violet indigo blue green yellow orange and red

Question 33

Transparent

Answer 33

Light can pass through freely

Question 34

Translucent

Answer 34

Some light can pass through

Question 35

Opaque

Answer 35

Lights can’t pass through