Newton's Third Law of Motion: StemScopes Segment and Scope 1

What does Newton's Third Law State?

• For every action there is an equal and same reaction

• For every action there is an equal and opposite reaction

• For every force action there is a different force reaction

• For every action there is an unequal and opposite reaction

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A force is:

• when objects interact

• something difficult to describe

• a push or a pull on an object

• an action and reaction

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List 3 everyday examples of Newton's Third Law

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A child kicks a soccer ball with a force of 65 newtons. What is the force from the the ball to the child's foot, and what is its direction?

• 100N and the same direction

• 35N and the opposite direction

• 65N and the same direction

• 65N and the opposite direction

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When pressing down on a table, why does your hand not go straight through the table?

• The table is not exerting any force.

• You are pressing down with the same amount of force that the surface is pressing up.

• You are pressing down with a different amount of force than the surface is pressing up.

• You aren't strong enough.

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Which of the following is another name for Newton's Third Law?

• The law of action-reaction

• The law of speed

• The law of inertia

• The law of force and acceleration

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What is the reaction force to a foot pushing down on the floor?

• The foot going through the floor
• The floor pushing back against the foot
• The floor breaking to the foot

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What is the boundary for the system in the picture?

• The area in front of the cannon

• The ground behind the cannon

• The area all around the cannon

• What is a boundary?

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An object's change in position over time is its

• motion

• interaction

• force

• law

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For action-reaction forces, do the forces cancel each other out?

• Yes

• No

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