waves

Question 1

what is a wave? (2)

Answer 1

• it is a transfer of energy without transfer of matter
• the particles vibrate but stay in the same place

Question 2

describe transverse waves: (2)

Answer 2

• vibrations are perpendicular to the direction of energy transfer
• the waves move up and down

Question 3

give 2 examples of transverse waves:

Answer 3

1. electromagnetic wave
2. S-waves

Question 4

describe longitudinal waves: (2)

Answer 4

• vibration are parallel as energy transfer
• the waves move back and forth

Question 5

give 2 examples of longitudinal waves:

Answer 5

1. P-waves
2. Sound waves

Question 6

describe P-waves: (3)

Answer 6

• longitudinal
• the particles vibrate parallel to wave direction
• they are the waves that arrive first in earthquakes

Question 7

describe S-waves:

Answer 7

• transverse
• the particles vibrate perpendicular to wave direction
• they are the waves that arrive second in earthquakes

Question 8

what does wavelength mean?

Answer 8

its the distance between two identical points

Question 9

what does frequency mean

Answer 9

number of waves per second

Question 10

what does amplitude mean

Answer 10

maximum displacement from rest

Question 11

what does wave speed mean

Answer 11

its how fast the wave travels

Question 12

whats the equation that includes wave speed, frequency, and wavelength

Answer 12

wave speed = frequency x wavelength

Question 13

can P-waves travel through solids and liquids?

Answer 13

solids - yes
liquids - yes

Question 14

can S-waves travel through solids and liquids?

Answer 14

solids - yes
liquids - no

Question 15

what do waves transfer?

Answer 15

they transfer energy

Question 16

what is the direction of transverse and longitudinal waves?

Answer 16

transverse - perpendicular
parallel - longitudinal