Pressure on liquids

• Physics
• Secondary Education
• Age 12,13

21 March 2023

3.6 Pressure in liquids and gases

Content objectives

• State that pressure is the pushing effect of a force
• Identify what causes pressure in liquids
• Explain how pressure changes with depth in liquids
• Identify what causes pressure in a gas
• Explain how altitude affects atmospheric pressure
• Explain how the quantity of gas in a container affects the pressure
• Explain how the temperature of the gas in the container affects the pressure

Remember?

Which depth has the highest pressure?

A

B

C

D

Why does the bottom part of the dam have thick walls?

21 March 2023

3.6 Pressure in liquids and gases

Content objectives

• State that pressure is the pushing effect of a force
• Identify what causes pressure in liquids
• Explain how pressure changes with depth in liquids
• Identify what causes pressure in a gas
• Explain how altitude affects atmospheric pressure
• Explain how the quantity of gas in a container affects the pressure
• Explain how the temperature of the gas in the container affects the pressure

Can a car run with this tire?

Can a car run with this tire?

YES

NO

What do you do with a flat tire? Why?

What do you do with a flat tire? Why?

Which balloon has more pressure?

Which balloon has more pressure?

Left

Right

Which altitude will exert more pressure on you?

Group work

• Work together to complete the given exercise correctly.
• Submit or share your output when done.

Plenary (Sharing)

What's next?

Friday: Pressure calculations