Newton's 3rd Law SG

Newton’s law states that for every action, there is an ________ reaction.

• unequal and opposite

• equal and similar

• stronger and opposite

• equal and opposite

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Force always comes in________

• waves

• triplets

• pairs

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The two paired forces in Newton's third law:

• act on different objects

• are equal in size

• are opposite in direction

• are the same type

• all of the above

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When the person pushes the ground with their foot, the equal and opposite reaction force is

• the ground pushing back on their foot

• when they start to move forward

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A person steps out of the boat and onto the dock. As the person moves forward onto the dock, the boat moves backward. Which statement best describes the backward motion of the boat as the person steps forward?

• The backward motion of the boat is the reaction to the action of the person stepping onto the dock.

• The mass of the person exerts a force on every other mass.

• An object at rest tends to stay at rest.

• Friction opposes the motion of an object.

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What is the action in the picture?

• The man pushing against the wall

• The wall pushing back at the man

• The ground pushing against the man's foot

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If the person is pushing backwards with the paddle, why do they move forward?

• The person will actually move backwards, they need to paddle the other way

• The water pushes back with an equal and opposite force

• The person is pushing harder than the water

• The water pushes back with a greater force than the person

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If a person pushes down on a trampoline, why do they move back up into the air?

• The trampoline pushes back with a greater force than the person

• The trampoline pushes back with less force than the person

• The trampoline pushes back with an equal and opposite force as the person

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When a cannon fires a cannonball, we can observe Newton's 3rd Law. Which is the reaction force?

• The cannon moving forward

• The cannon moving backward

• The cannonball moving backward

• The cannonball moving forward

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What is an example of Newton's 3rd law

• A rainbow in the sky

• A rocket taking off

• A kid going to bed

• A ball in the air

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