Chapter 36 - Pressure

Question 1

Pressure

Answer 1

The amount of force acting on a unit of area

Question 2

How do you calculate pressure?

Answer 2

force
——- = pressure
area

Question 3

What is the unit for pressure?

Answer 3

N/cm² or N cm¯²
N/m² or N m¯²
pascal (Pa)

Question 4

In what way does pressure vary with depth in a liquid?

Answer 4

The value of pressure increases as you go deeper below the surface of a liquid

Question 5

What is a pressure gauge used for?

Answer 5

Checking pressure in things like tires

Question 6

What is a barometer used for?

Answer 6

Measures atmospheric pressure

Question 7

What is an altimeter used for?

Answer 7

In an aeroplane, the altimeter measures atmospheric pressure and converts this reading to height

Question 8

What kind of weather does low pressure bring?

Answer 8

Wind and rain

Question 9

What kind of weather does high pressure bring?

Answer 9

Settled, dry weather

Question 10

What is the most common unit when dealing with atmospheric pressure?

Answer 10

hectopascal (hPa)