2G1 Chapter 2 Force

A force is a ................. or ...................

Name the four different type of forces.

...................... force acts between two surfaces when they slide or try to slide against each other.

A spring has elastic forces when it is ........................ or .............................

Name an example of magnetic materials.

The gravitational force acting on the object is also known as ................

What is the unit of force?

What can be used to measure size of a force?

Which of the following is true about force?

• Forces cannot be seen but their effects can be observed.

• Forces can change the shape and/or size of an object.

• Forces do not change the mass of an object.

• Forces change the mass of an object.

• Forces can also change the motion of an object.

................. surface will result in greater frictional force