Lesson -- free body diagrams

Free Body Diagrams

As we move through the slides, write notes on important things in your journal.

Multiple Choice

What do the arrows or vectors represent in a free body diagram?

• forces acting on the object

• all the acceleration acting on the object

• all the ways an object can move

Multiple Choice

Is force a vector or scalar?

• vector

• scalar

​Types of Forces

Multiple Choice

What is used to represent the object?

• a dot or small square

• a detailed drawing of the object

• a picture or image of the object

Draw

Draw a free body diagram of a book resting on a table.

Draw

A box on the floor being pushed to the right.

Draw

A skydiver falling with increasing acceleration.

Draw

A student sitting at their desk.

Draw

Draw the free body diagram for this system.

Draw

Draw a free body diagram for a child pulling a wagon with a rope. The object is the wagon.

Multiple Choice

Can an object still be moving if all forces are balanced?

• yes, if velocity is constant

• no, is in a state of equilibrium

Multiple Choice

Name the missing force...

• weight force
• normal force
• applied force
• frictional force