Newton's Laws of Motion Review

A car is traveling at 90 km/h when it suddenly stops. The passengers in the car will...

• Continue to move in a straight line

• Come to a stop at the same time the car stops

• Be pushed against the door on the passenger side

• Be pushed against the door on the drivers side

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NGSS.MS-PS2-1

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A force is needed to...

• Ensure that an object keeps doing what it is already doing

• Keep an object in constant motion in a straight line

• Keep an object at rest

• Cause a change in the motion of an object

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NGSS.HS-PS2-1

An unbalanced force

• Keeps an object in constant motion in a straight line

• Cannot change the speed of an object

• Can eliminate friction

• Is necessary any time there is a change in motion

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Balanced forces

• Cannot cause a change in the motion of an object

• Are always in the same direction as the motion of an object

• Can cause a change in the motion of an object

• Can stop the motion of an object

Motion when an unbalanced force acts on an object is described by Newton's

• First law

• Second law

• Third law

• Fourth law

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NGSS.MS-PS2-2

A force

• Is a push or pull

• Gives energy to an object

• Can cause an object to change its motion

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NGSS.MS-PS2-2

For every action, the reaction is

• Equal and in the same direction

• Equal and opposite

• Unequal and opposite

• Unequal and in the same direction

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NGSS.MS-PS2-1

Balanced forces are

• Opposite and unequal

• Opposite and equal

• Equal and in the same direction

• Unequal and in the same direction

A cannon can apply a force of 50 newtons. Which cannon ball has the greatest acceleration?

• 150 grams

• 100 grams

• 200 grams

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NGSS.MS-PS2-2

Which has more inertia - a shopping cart full of groceries or an empty shopping cart?

• Full shopping cart

• Empty shopping cart