Science Revision 1: Pressure

Which of the following quantities depends on both the weight of an object and its surface area on contact?

• Density

• Work done

• Pressure

• Energy

Ice skates have sharp blades because they _____ when they act on the ice

• decrease the pressure

• remove the pressure

• stabilise the pressure

• increase the pressure

Which of the following objects is easier to carry?

• a heavy school bag with two narrow straps

• a heavy school bag with a narrow strap

• a heavy school bag with two broad straps

• a heavy school bag with a broad strap

The pressure on a given surface can be reduced when the ...

• force acting on it is increased

• surface area is decreased

• surface area is increased

• weight acting on it is increased

Which of the paired factors given below would influence pressure of a liquid acting on a surface?

• weight and height

• surface area and weight

• surface area and density

• height and volume

If the same force is used to push a needle, a chalk, a chopstick and a ball point pen into a sponge. which object will exert the least pressure?

• ball point pen

• chalk

• chopstick

• needle

What is the relationship between the force acting on a surface area due to pressure?

• F=PxA

• A=P/F

• P=FxA

• F=P/A

What is the pressure exerted on the ground by a man of mass 600N with a total foot area of 500cm²?

• 0.2N/m²

• 0.83N/m²

• 1.2N/m²

• 8.3N/m²