Pressure, Energy and Work done

If a 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

What does pressure measure?

• Strength

• Force exerted on a given area of surface

• Force acting

• Weight force

Which of the statements is true?

• The flat shoe exerts more pressure than the high-heeled shoe as a result of an increase in surface area.

• The high-heeled shoe exerts more pressure than the flat shoe as a result of an decrease in surface area.

• The high-heeled shoe exerts the same pressure as the bottom of the flat shoe.

Convert 52 kg to Newtons

• 0.052 N

• 5.2 N

• 52 N

• 520 N

Force divided by the area it is applied over is 

• mass
• density
• pressure
• volume 

What is the unit of measurement for pressure?

• Pa

• N m²

• N/m

• P

What pressure does a 4000N horse exert on the ground if each foot is 0.001 m²?

• 4000 ÷ 0.001

• 4000 ÷ 0.004

• 4000 × 0.001

• 4000 × 0.004

The pressure under a block of metal can be increased by

• doubling its area and weight

• halving its weight and halving its area

• halving the area and doubling its weight

• reducing its weight