Introduction to Forces and Free Body Diagrams

What do you call a simple model to understand what will happen to an object due to the forces acting on it?

• Free Body Diagram

• Net Force

• Balanced Force

• Unbalanced Force

What is the Net force in this diagram?

• The forces action on the object.

• The combination of forces acting on the object.

• The size of the arrows.

• The size of the circle.

Tags

NGSS.MS-PS2-2

What is the net force for the following scenario. 100 N going left and 25 N going right.

• 125N

• 75N

• 75N left unbalanced

• 75N left balanced

Tags

NGSS.MS-PS2-2

Calculate the net force for the diagram.

Tags

NGSS.MS-PS2-2

What is a force?

• The sum of the forces action on an object.

• When an object is experiencing friction.

• A push or a pull on an object.

• Calculating the net force of an object.

Tags

NGSS.HS-PS2-1

Calculate the net force of the baseball batter. Make sure to include direction and balanced or unbalanced.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

When forces are going in the opposite direction, how do you calculate net force?

• Add the forces

• Divide the forces

• Find a fraction of the forces.

• Subtract the forces.

Tags

NGSS.MS-PS2-1

The free-body diagram shown for an object being pushed to the right across a rough floor at a constant speed has what wrong with it?

• The friction force should be in the same direction as the applied force.

• The applied force should be the same size as the friction force.

• The normal force should be larger than the force of gravity.

• There is nothing wrong with this free-body diagram.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Which of the arrows in this diagram represents the normal force acting on the box?

• Arrow A

• Arrow B

• Arrow C

• Arrow D

A 2 kg block slides down a rough 30° inclined plane as shown in the picture. The block has an acceleration of 2 m/s². Which diagram BEST shows the force of gravity (W), the friction force (f), and the normal force (N) acting on the block?

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Tags

NGSS.MS-PS2-2