Fisica T3

Question 1

Name two types of waves and define them

Answer 1

Transverse : the vibration is at right angles to the direction of the wave

Longitudinal: the vibration is parallel to the direction of the wave

Question 2

What is the frequency

Answer 2

How many waves pass by a point every second, it is measured in hertz

Question 3

What is wave length

Answer 3

Distance between two corresponding points on the wave, it is measured in meters

Question 4

What is amplitude

Answer 4

Distance between the midpoint to the peak of the wave

Question 5

What is the time period of wave

Answer 5

Time it takes for a source to produce a wave. It is related to the frequency of the wave

Question 6

Wave speed equation

Answer 6

Wave speed = frequency x wavelength

Question 7

Properties of waves

Answer 7

• All waves including sound can be reflection, refracted
• You will always measure the angle from the normal
• The normal will always be 90 degrees of the mirror AOI will always be the same as the AOR

Question 8

What is refraction

Answer 8

When the light enters a denser transparent substance it slows down and changes direction. This change in direction is known as refraction