Physics Trimester 3 Final Review

Question 1

What are the 2 main classifications of waves?

Answer 1

1. Mechanical
2. Electromagnetic

Question 2

Why do we use the term “propagate” to describe wave movement?

Answer 2

We use propagate instead of travel or move since waves don’t waves simply travel from place to place (they spread out)

Question 3

Transverse Waves

Answer 3

Oscillate perpendicular to the direction of propagation

Question 4

Longitudinal Waves

Answer 4

Oscillating motion causing the waves is parallel to the direction of the propagation

Question 5

Circular Waves

Answer 5

Mainly repressed by the waves on water

Question 6

List and describe the 5 main waves phenomena:

Answer 6

1. Reflection- reflect off surface of objects
2. Refraction- the change in direction of waves
3. Diffraction- occurs when waves bend around
4. Resonance- occurs when two different waves
5. Interference: occurs when two different waves arrive at the same place at the same time

Question 7

List and describe 3 types of seismic waves:

Answer 7

1. Tsunami- a large sea wave generated by an underwater earthquake , volcano, landslide etc.
2. Stress- causes faults and folts- plates move, they cause stress in the crust, which produces faults
3. Fault- a break in the mass of rock along with which movement occurs

Question 8

What is the formula for wavelength?

Answer 8

V=(lamda)(force)

Question 9

What is the formula for Period?

Answer 9

Tau=1/f

Question 10

What is a wave?

Answer 10

propagation or disturbances from place to place in a regular and organized way

Question 11

What is amplitude?

Answer 11

the distance between a resting position and the maximum displacement of the wave from one surface to another

Question 12

What is an earthquake?

Answer 12

this occurs when rocks between two or more tectonic plates accumulate energy and stress, leading to compression