Pressure in Solid

Pressure in Solid

Grade 7 / JH MSCS / By : Ms Diana Puspita Indarto

Learning Objective

1. Students will define what is pressure.

2.​Students will able to recall and use the equation p = F/A

3.​Students will describe how pressure varies with force and area using everyday examples.

Physics IGCSE Textbook pp.102-105 / Pressure in Solid

Physics IGCSE Textbook pp.102-105 / Pressure in Solid

Pressure depends on AREA

Physics IGCSE Textbook pp.102-105 / Pressure in Solid

Pressure depends on FORCE

p = Pressure (N/m²)

F = Force (Newton)

A = Area (m²)​

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Pressure is ​

defined as force per unit area.

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Physics IGCSE Textbook pp.102-105 / Pressure in Solid

Multiple Choice

What is pressure?

• The amount of force exerted on a surface

• The weight of an object

• The surface area of an object

Multiple Choice

If you're walking in snow why would you wear boots instead of high heels?

• Because boots have a higher surface area making the pressure less and stopping you from sinking.

• No, high heels are better

• Because it's more comfortable

Multiple Choice

What is the equation used to calculate pressure?

• pressure =

  force/mass

• pressure =

  area/force

• pressure =

  mass/volume

• pressure =force/area

Multiple Choice

Which of these animals would probably cause the greatest pressure on the ground?

• A fat cow with big feet

• A calf with big feet

• A fat cow with small feet

• A calf with small feet

Multiple Choice

Which situation produces more pressure on the floor?

• standing on one foot

• standing on four feet

• standing on two feet

• all produce the same pressure

Multiple Choice

A person weighs 700 N and their feet have a surface area of 0.1 m².

How much pressure is exerted?

• 100 N/m²

• 7000 N/m²

• 70 N/cm²

Thank you

God bless you​