P11 - Pressure

Question 1

What is the equation for pressure at the surface of a liquid

Answer 1

Pressure = Force / Area

Question 2

What is the unit for pressure?

Answer 2

Pascals (Pa)

Or

N/m*2

Question 3

What is the equation for weight?

Answer 3

Weight = Mass x gravity

Question 4

What is the unit for Weight?

Answer 4

Newtons (N)

Question 5

What is the unit for gravity?

Answer 5

N/kg

Question 6

How do you calculate the VOLUME of a liquid?

Answer 6

Area x height

Question 7

How do you calculate the MASS of a liquid?

Answer 7

Volume x Density

Question 8

How do you calculate the WEIGHT of a liquid?

Answer 8

Mass x Gravity

Question 9

What is the equation for pressure at a certain depth in Liquids?

Answer 9

Pressure = Density x Gravity x height

Question 10

What is density a measure of?

Answer 10

How close together the particles in a substance are

Question 11

Why is pressure higher in a dense liquid?

Answer 11

More particles in space that are able to collide

Question 12

What does it mean if an object floats?

Answer 12

The upthrust on an object is equal to the objects wieght

Question 13

What does it mean if an object sinks?

Question 14

When the volume of a gas in a syringe increased, the pressure on the inside walls of the syringe decreased.
Explain why.

Answer 14

There are less frequent collisions on the walls
Causing a lower avergae force on the walls
And pressure is the total force per unit area