Waves

Question 1

What is the direction that waves travel called?

Answer 1

Propagation

Question 2

Why do waves happen?

Answer 2

Vibrations travelling from a starting point

Question 3

How can you practically demonstrate waves?

Answer 3

Water, ripple tank and springs

Question 4

Velocity of a wave equation

Answer 4

v = f λ

Question 5

What is wavelength measured in? λ

Answer 5

Metres

Question 6

What is frequency’s unit?

Answer 6

Hertz Hz

Question 7

Time period equation

Answer 7

T = 1/frequency

Question 8

What is amplitude of a wave?

Answer 8

How high crest is, volume.

Question 9

What is Wavelength ?

Answer 9

λ measured in metres. Crest to crest. Trough to trough.

Question 10

What is frequency?

Answer 10

measured in hertz (Hz). The number of waves passing per second
High frequency = high pitcg

Question 11

What is a transverse wave?

Answer 11

When the vibrations are perpendicular to the direction of propagation

Question 12

Examples of transverse waves

Answer 12

Light, S waves, x-ray, sea waves and electromagnetic radiation

Question 13

What is a longitudinal wave?

Answer 13

When vibrations are parallel to the direction of propagation with compressions and rarefactions

Question 14

Examples of longitudinal waves

Answer 14

Ultrasound, P-waves, sound, pushing end of a spring

Question 15

What is diffraction?

Answer 15

When waves spread out as they bend around objects

Question 16

Whats a high wavelengths effect on diffraction?

Answer 16

The wave will bend more with a higher wavelength