Define the term ultrasound wave

An ultrasound wave is a soundwave with a frequency higher than 20,000 Hz

RA

Related Physics GCSE answers

All answers ▸

If Newton's third law is correct, why are walls not indestructible? In applying a force to a wall, if it breaks surely it is not giving an equal and opposite force.


PHYSICS A LEVEL Explain why, when a red giant becomes a white dwarf, it moves towards the lower left of the Hertzsprung-Russell diagram [2]


A mass of 2kg is dropped from rest at a height of 10m. i) What is the initial GPE of the mass? ii) What is the final velocity of the mass when it hits the ground?


Give an example of ionising radiation