p5

Question 1

Difference between transverse and longitudinal waves

2 examples of each

Question 2

Equation for wave speed with units

Question 3

Describe an experiment to measure the speed of sound

Question 4

Describe an experiment to measure the wavelength of a water wave

Question 5

Describe an experiment to measure the speed of a water wave

Question 6

Describe the 3 things that can happen to a wave when it reached a boundary between materials

Question 7

What is the 1 rule for all reflected waves

Question 8

Explain how reflection allows us to see

Question 9

Explain how and why waves refract. What happens to the direction, wavelength and frequency?

Question 10

Explain specular reflection and scattering

Question 11

Describe an experiment for in edit aging the reflection of a light by a plane mirror

Question 12

Describe how to sketch a ray diagram
When is the image virtual/real, upright/inverted, smaller/larger

Question 13

Describe what sound waves are, and how they travel through different materials

Question 14

List the parts of the ear which allow u to hear a sound, how do they limit hearing?

Question 15

What is partial reflection? Explain how this is used in medical imaging

Question 16

What type of waves are em waves? When do all em waves travel at the same speed

Question 17

List the waves in the em spectrum, in increasing wavelength

Question 18

Explain how diff types of em waves can be dangerous

Question 19

State and explain one use of each type of em waves can

Question 20

Describe how 3 types of em waves are used in medical imaging. What are the compromises?

Question 21

Explain why an opaque object will appear a particular colour

Question 22

How do colour filters work

Question 23

How does the image formed by a convex lens change with distance from the object to the lens?