Force and Pressure

What is the equation used to calculate pressure?

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

Fluids can also include__ and__. 

• solids and liquids
• solids and gases
• liquids and gases
• liquids

What is the unit of measurement for pressure?

• pascal
• grams
• milliters
• meters

Which of the statements is true?

• The bottom of the boot exerts more pressure than the shoe as a result of an increase in surface area.
• The bottom of the shoe exerts more pressure than the boot as a result of an decrease in surface area.
• The bottom of the shoe exerts the same pressure as the bottom of the boot.

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

Army tank tracks are useful for travelling through the mud because..

• they decrease the force the vehicle exerts on the ground
• they increase the force the vehicle exerts on the ground
• they decrease the pressure the vehicle exerts on the ground
• they increase the pressure the vehicle exerts on the ground

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

Look at the pressure triangle. How do we calculate the area?

• f ÷ a
• f x p
• p x f
• f ÷ p

What is a force that works AGAINST MOTION?

• Force
• Motion
• Gravity
• Friction

Tags

NGSS.3-PS2-1

Students roll toy cars down the same ramp with different coverings like carpet, foil, and sandpaper. What are they trying to test?

• How does the height of a ramp affect the distance a car will roll?

• How does the mass of the car affect the distance a car will roll?

• How does the surface of a ramp affect how fast a car will travel?

• How does the surface of a ramp affect the distance a car will roll?

Tags

NGSS.MS-PS3-4