Ultrasound

Question 1

Amplitude

Answer 1

Maximum disturbance caused by a wave

Question 2

Wavelength

Answer 2

Distance between two points on the wave moving in the same direction

Question 3

Frequency

Answer 3

Number of waves that pass a point in one second

Question 4

How can ultrasound be used

Answer 4

Ultrasound imaging- scan bodies and see organs, check baby development and detect tumours and gallstones

ultrasound waves- break down kidney stones by vibrating them to break up and pass out in urine. No painful surgery.

Question 5

Ultrasound advantages over x ray

Answer 5

Produces images of soft tissue

No damage to living cells

Question 6

How do we get the image of eg, pre natal scan

Answer 6

Waves are partly reflected at boundary as they pass into another

Time taken for reflection detection calculates depth

Question 7

Waves transfer energy from one point to another

Are particles transferred?

Answer 7

No particles of matter are transferred by waves

Question 8

Longitudinal waves

Answer 8

Each particle moves backwards and forwards about its normal position parallel to direction of wave movemnet

Question 9

Transverse waves

Answer 9

Particle moves uo and down 90’ ti direction of wave movement

Question 10

How do sound (and ultrasound) waves travel

Answer 10

Longitudinal waves