Forces

Upthrust is a force that only acts on objects that are in _____.

All forces are ______ quantities.

• scalar

• vector

State the unit of force.

Which of these are contact forces?

• Tension

• Upthrust

• Gravity

• Air resistance

• friction

What do we draw to represent forces in diagrams?

If the arrows for a pair of forces are the same size, the forces are ________.

What force is acting along the rope in tug of war?

Calculate the resultant force in the diagram. (Remember to give a direction too)

Calculate the resultant force in the diagram.

Calculate the resultant force in the diagram. (Remember to give a direction too)