Explain why your ears ‘pop’ during takeoff in an aeroplane. A7. Outside air pressure decreases rapidly at high altitude; pressure inside the ear is initially higher, so air pushes out until equalised.
What is atmospheric pressure at sea level approximately? A5. ( 1.01 \times 10^5 ) Pa (101 kPa) aqa science p2 5.5 activity sheet answers
What is upthrust? A8. An upward force exerted by a fluid on an object immersed in it (caused by higher pressure at the bottom of the object than at the top). Explain why your ears ‘pop’ during takeoff in