Introduction to Forces

Define the term: A force is a

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NGSS.MS-PS2-1

When an unbalanced force acts on an object, the force ______________________.

• changes the motion of the object

• is cancelled by another force

• does not change the motion of an object

• is equal to the weight of the object

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NGSS.MS-PS2-2

A non-contact force occurs between

• two objects that aren't touching

• two objects that are touching

• the ground and wheels

• you and me

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Gravity is a

• Contact Force

• Myth

• Non-contact Force

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What is the net force?

• 65 N left
• 65 N right
• 35 N left
• 35 N right

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What is the magnitude (size) and direction of the net force?

• 14 N Down
• 14 N Up
• 6 N Up
• 6 N Down

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CCSS.HSN-VM.B.4A

CCSS.HSN-VM.B.4B

The force between the phone and the mount is a

• contact force

• non-contact force

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NGSS.MS-PS2-5

Which is an example of a non-contact force?

• elastic force

• normal force

• applied force

• electrical force

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NGSS.MS-PS2-5

You are pulled to the surface of the earth due to the force of _________________

• gravity

• friction

• normal force

• contact force

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Magnetic Force is an example of ____________ force.

• contact

• non-contact

• balanced

• unbalanced

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