Forces 8

What is deformation?

• When forces squash an object

• When forces change the shape of an object

• When forces stretch an object

What is tension?

• When forces squash an object

• When forces change the shape of an object

• When forces stretch an object

Hooke's law explains ...

• the effect of weight on spring extension

• why a spring bounces back after stretching

• how to measure extension of a spring

If a spring does not recoil, it has reached its ....

• extension limit

• tension limit

• elastic limit

• rebound limit

Drag is a type of ...

• resistance contact force

• friction

• resistance non-contact force

• thrust

What is the resultant force?

• 130N to the right

• 70N to the right

• 10N to the left

• 10N to the right

Which direction is the box moving?

• Up

• Down

• Left

• Right

What does the graph show?

• No relationship

• A negative relationship

• A linear relationship

• An inverse relationship

What is the green triangle known as in a lever?

(choose 2)

• Pivot

• Fulcrum

• Load

• Effort

• Mass

The turning effect of a force is called a ...

• lever

• moment

• centre of mass

• Newton