Balance and Unbalance Force

How will this object move? 

• It won't move. 

• It will move to the right. 

• It will move to the left. 

• It will move in both directions. 

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NGSS.MS-PS2-1

NGSS.MS-PS2-2

Newtons 1st law of motion states:

• An object in motion will stay in motion and an object in rest will stay in rest unless acted upon by and unbalance force.

• For every action there is an equal and opposite reaction. 

• Acceleration is produced when a force. acts on a mass. 

• The greater the mass  the greater the amount of force needed to change its motion. 

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NGSS.MS-PS2-2

How will this object move? 

• It won't move. 

• It will move to the right. 

• It will move to the left. 

• It will move up. 

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NGSS.MS-PS2-1

NGSS.MS-PS2-2

What is the net force?

• 30 N left

• 25 N right

• 5 N left

• 55 N right

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NGSS.MS-PS2-1

NGSS.MS-PS2-2

What is the net force?

• 40 N left

• 0 N Balalnced

• 400 N right

• 40 N right

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NGSS.MS-PS2-2

Which could be an example of a balanced force?

• An asteroid moving at a constant speed through space 

• A car accelerating from a stop sign

• A box of dishes falling from a counter 

• A rocket taking off 

What is the net force?

• 10 N

• 0 N

• 25 N

• 1 N

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NGSS.MS-PS2-1

NGSS.MS-PS2-2

Calculate the net force of the object in the image shown.

• 20N

• 35N

• 5N

• 25N

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NGSS.MS-PS2-1

NGSS.MS-PS2-2

The law of inertia is also known as which law of motion?

• Newtons first law of motion. 

• Newtons second law of motion. 

• Newtons third law of motion. 

• Inertia has nothing to do with the laws of motion. 

Which one is balanced?

• top

• bottom

• both

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NGSS.MS-PS2-2