Calculating Net Force: Key Concepts and Examples

The video tutorial explains the concept of net force, using an analogy from economics to illustrate how net force is calculated by considering all forces acting on an object. It distinguishes between balanced and unbalanced forces, provides examples of simple and complex force scenarios, and analyzes a real-world example involving a truck. The tutorial concludes with a summary of key points, emphasizing the importance of direction and magnitude in describing net force.

What is the net profit if you earn $20 from a lemonade stand but spend $10 on supplies?

• $10

• $30

• $0

• $20

If 10 Newtons of force is applied to the right and no force is applied to the left, what is the net force?

• 20 Newtons to the right

• 0 Newtons

• 10 Newtons to the left

• 10 Newtons to the right

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NGSS.MS-PS2-2

When two forces of 10 Newtons each act in opposite directions, what is the net force?

• 10 Newtons to the right

• 0 Newtons

• 20 Newtons

• 10 Newtons to the left

Tags

NGSS.MS-PS2-2

If two people push a wagon in the same direction with 10 Newtons each, what is the net force?

• 30 Newtons

• 20 Newtons

• 0 Newtons

• 10 Newtons

Tags

NGSS.MS-PS2-2

What is the net force when two forces of 10 Newtons each push to the right and one force of 10 Newtons pushes to the left?

• 10 Newtons to the left

• 20 Newtons to the right

• 10 Newtons to the right

• 0 Newtons

Tags

NGSS.MS-PS2-2

If two people push and one person pulls a wagon in the same direction with 10 Newtons each, what is the net force?

• 20 Newtons

• 0 Newtons

• 10 Newtons

• 30 Newtons

Tags

NGSS.MS-PS2-2

What happens to the net force when forces of 5 Newtons each act in opposite vertical directions?

• 5 Newtons up

• 10 Newtons up

• 5 Newtons down

• 0 Newtons

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NGSS.MS-PS2-2

In a real-world example, if a truck has 110 Newtons of force to the left and 70 Newtons to the right, what is the net force?

• 110 Newtons to the left

• 40 Newtons to the right

• 40 Newtons to the left

• 70 Newtons to the right

Tags

NGSS.MS-PS2-2

What is the net force if a truck experiences 70 Newtons of force downwards and 70 Newtons upwards?

• 140 Newtons up

• 0 Newtons

• 70 Newtons up

• 70 Newtons down

Tags

NGSS.MS-PS2-2

What is the net force when forces are pushing in the same direction?

• You subtract the forces

• You add the forces

• The forces cancel each other out

• The net force is always zero

Tags

NGSS.MS-PS2-2