Pressure in Solids

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

• More

• Less

• The same

What is pressure?

• The amount of force exerted on a surface

• The surface area of an object

• The weight of an object

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.

• Because it's more comfortable

• No, high heels are better

What is the equation used to calculate pressure?

• pressure= force/mass
• pressure =mass/volume
• pressure=area/force
• pressure=force/area

What pressure does a 4000N horse exert on the ground if each foot is 10cm²?

• 40 N/cm²
• 100 N/cm²
• 400 N/cm²
• 10 N/cm²

If the horse reared up on 2 legs what effect would it have on the pressure?

• it will exert half the pressure it did before
• it will exert the same pressure it did before
• it will exert twice the pressure it did before
• it will exert four times the pressure it did before

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

• A fat cow with big feet
• A fat cow with small feet
•  A calf with big feet
• A calf with small feet

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

A cardboard box weighs 30N. If we added weight to the box, what would happen to the pressure?

• increase

• decrease

• stay the same

Which situation produces more force on the floor?

• standing on one foot

• standing on two feet

• standing on four feet

• all produce the same force

Which situation produces more pressure on the floor?

• standing on one foot

• standing on two feet

• standing on four feet

• all produce the same pressure