Turning effect of forces (Quick check)

What are the conditions for equilibrium?

• A

• B

• C

• D

The weights of 4 objects, 1 to 4, are compared using a balance.

Which object is the lightest?

• Object 1

• Object 2

• Object 3

• Object 4

Two equal forces F act on each of four planks.

Which plank turns?

• A

• B

• C

• D

Forces are applied to a uniform beam pivoted at its center.

Which beam is balanced?

• A

• B

• C

• D

A driver's foot presses with a steady force of 20 N on a pedal in a car as shown.

What is the force F pulling the piston?

• 2.5 N

• 10 N

• 100 N

• 160 N

The diagram shows a wheelbarrow and its load, which have a total weight of 150 N. This is supported by a vertical force F at the ends of the handles.

What is the value of F?

• 75 N

• 150 N

• 225 N

• 300 N