Net Force

Net Force

Physics Vocabulary

Force:

A push or pull on an object. Measured in Newtons. (N)

Example: ​20 Newtons

Physics Vocabulary

Balanced Force:​

The object stays still or continues to move in the same direction at the same speed (constant speed)​

​

Unbalanced Force:

Always causes a change in motion (speed up,

slow down, turn)

MORE FORCE

LESS FORCE

SAME AMOUNT OF FORCE

Multiple Choice

The man on the left <--- is pulling the rope with 10 Newtons of force. The man on the right ---> is pulling the rope with 65 Newtons of force.

Is this example BALANCED or UNBALANCED?

• Balanced

• Unbalanced

Multiple Choice

What is the net force?

REMEMBER: Forces working together = ADD

• O Newtons Right

• 900 Newtons Left

• 450 Newtons Right

• 900 Newtons Right

Multiple Choice

Calculate the net force.

• 3 Newtons Right

• 9 Newtons Left

• 9 Newtons Right

• 6 Newtons Left

Multiple Choice

Calculate the Net Force.

• 6 Newtons Left

• 6 Newtons Right

• 3 N Left

• 0 Newtons Left

The object will move in the direction where the most force is being applied!

Multiple Choice

Calculate the Net Force.

Remember: Forces Working Against Each Other = SUBTRACT

• 950 Newtons Left

• 950 Newtons Right

• 50 Newtons Left

• 50 Newtons Right

Multiple Choice

Calculate the Net Force.

• 75 Newtons Right

• 50 Newtons Left

• 50 Newtons Right

• 125 Newtons Left

Multiple Choice

Calculate the Net Force.

• 10 N Left

• 10 Newtons Right

• 5 Newtons Left

• 5 Newtons Right

When Net Force = ZERO

The object stays STILL.

Multiple Choice

Calculate the Net Force.

• 0 Newtons Right

• 8 Newtons Right

• 0 Newtons = STILL

• 8 Newtons = STILL

Multiple Forces

Multiple Choice

Calculate the Net Force.

Remember: Are the forces working TOGETHER or AGAINST each other?

• 220 Newtons Up

• 80 Newtons Up

• 580 Newtons Down

• 220 Newtons Down

Multiple Choice

Calculate the Net Force.

• 350 Newtons Right

• 50 Newtons Left

• 50 Newtons Right

• 0 Newtons = Still

Multiple Choice

Calculate the Net Force.

• 0 Newtons = Still

• 175 Newtons Right

• 75 Newtons Right

• 175 Newtons Left

Multiple Choice

Calculate the Net Force.

• 30 Newtons Right

• 30 Newtons Still

• 0 Newtons = Left

• 0 Newtons = Still

Multiple Choice

Calculate the Net Force.

• 4 Newtons Right

• 6 Newtons Right

• 6 Newtons Left

• 12 Newtons Left

Multiple Choice

Balanced or Unbalanced?

• Balanced

• Unbalanced

Multiple Choice

Balanced or Unbalanced?

• Balanced

• Unbalanced

Multiple Choice

Calculate the Net Force.

• 180 Newtons Up

• 180 Newtons Down

• 60 Newtons Up

• 60 Newtons Down

Multiple Choice

Calculate the Net Force.

• 1000 Newtons Up

• 9000 Newtons Up

• 1000 Newtons Down

• 9000 Newtons Down

Multiple Choice

Which of the following best describe the image shown?

• The ladder will move to the right with 200 Newtons of force.

• The ladder will fall back to the left with 100 Newtons of force.

• The ladder will stay still because the net force is 100 Newtons.

• The ladder will stay still because the forces are balanced. Net Force = 0