Reflection and forces - Physics

Question 1

Specular reflection

Answer 1

A reflection from a smooth surface

Question 2

Diffuse scattering

Answer 2

Reflection from a rough surface

Question 3

Describe the law of reflection

Answer 3

Angle of incidence = angle of reflection

Question 4

Describe the process of refraction

Answer 4

Transparent objects can only be seen if light changes when it passes through it

Question 5

List 3 contact forces

Answer 5

Push,pull,drag

Question 6

List 2 non contact forces

Answer 6

Magnetism,gravity

Question 7

When are forces unbalanced

Answer 7

When changin speed or direction

Question 8

Describe hookes law

Answer 8

As the force doubles , the extension on a spring also doubles

Question 9

How can you increase and reduce friction forces

Answer 9

The surface