Intro to Forces

What is a force?

• the PUSH or PULL on an object 
• The MOTION an object creates
• The objects HITTING one another
• Going REALLY FAST

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Acceleration is

• increasing speed
• decreasing speed
• changing direction
• all of the above

What is the name for a push or pull?

• A movement
• A force
• Speed
• Density

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NGSS.MS-PS2-2

NGSS.MS-PS2-1

Which type of force(s) will cause a change in an object's motion?

• equal forces
• zero net force
• balanced forces
• unbalanced forces

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NGSS.MS-PS2-2

A ____ force is the sum of forces felt by an object.

• sum
• net
• strong
• balanced

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NGSS.MS-PS2-2

With unbalanced forces, the object will move in the direction of the _______ force.

• larger 
• smaller 
• equal 
• cannot be determined

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If there are two forces going in the same direction how would you find the net force?

• Subtract
• Add
• Neither
• Multiply

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Which one is balanced?

• Top
• Bottom
• Both
• Cannot be determined

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NGSS.MS-PS2-1

You push on a tree with 20 N of Force. If the tree doesn't move, the tree is pushing back on you with _____of Force.

• 20 N 
• 40 N 
• 10 N 
• 0 N

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NGSS.MS-PS2-1

A person is pushed forward into their seatbelt when a car stops demonstrates which of Newton's Laws of Motion?

• First
• Second
• Second & Third
• Third