Pressure in solid

How do you Calculate Pressure?

• Force(N) / Area(m²)

• Force(kg) / Area(mi²)

• Force(kg) / Area(mi²)

• Area(mm²) / Force (kg)

If an object's surface area is smaller does it create more or less pressure?

• More

• Less

• The same

• None

What is pressure?

• The weight of an object.

• The surface area of an object.

• The force per unit area.

• The area per unit force.

A person weighs 700N and their feet have a surface area of 0.1m². How much pressure is exerted?

• 7000N/m²

• 100N/m²

• 70N/cm²

• 1000N/m²

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

• No, high heels are better.

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

• Because it's more comfortable.

• Because high heels have a smaller surface area making the pressure less and stopping you from sinking.

What does N/m² mean?

• Newtons per squared metre

• Kilograms per squared mile

• Kilograms per squared mile

• Metre per squared Newton

How do you turn Ncm² to Nm²?

• Divide by 10000

• Times by 10000

• Divide by 100

• Times by 100

Which of the following decreases pressure?

• Pins

• Ice skates

• Nails

• Snow shoes

What is the correct formula to calculate pressure?

• P= F x A

• P= F / A

• P= A / F

• P= A + F

A hammer hits a nail with a force of 50 N into some wood. The area of the point of the nail is 0.02 cm2. What is the pressure the nail puts on the wood?

• 2500 N/cm²

• 250 N/cm²

• 1 N/cm²

• 0.004 N/cm²