Forces

If these boys are pulling with the same amount of force.  What will happen?

• The boy in blue will win.
• They will not move at all.
• The boy in red will win.
• Both will fall down.

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NGSS.MS-PS2-1

This is an example of what kind of force?

• Balanced Force
• Pushing Force
• Gravity Force
• Unbalanced Force

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NGSS.3-PS2-1

A force that slows or stops motion when objects rub together.

• Friction
• Push
• Pull
• Magnetism

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NGSS.MS-PS2-2

What is motion?

• It's like the ocean
• Any change in an animal or person's position.
• Motion is like acting
• Any change in an object or person's position.

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NGSS.MS-PS2-2

The measure of the pull of gravity on an object is ___________________.

• motion
• weight
• speed
• friction

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NGSS.MS-PS2-4

What is a PUSH or PULL of an object?

• Motion
• Force
• Friction
• Gravity

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NGSS.MS-PS2-1

NGSS.MS-PS2-2

How is gravity affected by mass?

• the larger the mass of the object, the greater the gravity
• small objects have no gravity
• gravity is not affected by mass of objects, whether large or small

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NGSS.MS-PS2-4

What is the standard unit force is measured in?

• Newtons
• pounds
• grams
• meters

1.  It is easier to ride a bicycle down a hill than to ride up a hill because _______ helps the bicycle move down the hill. 

• gravity
• friction
• rotation

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NGSS.MS-PS2-4

What is a force that works AGAINST MOTION?

• Force
• Motion
• Gravity
• Friction

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NGSS.3-PS2-1