Applying Newton's Third Law Quiz

In the context of action and reaction forces, if a book is resting on a table, what is the reaction force to the weight of the book?

• The gravitational force acting on the book.

• The normal force exerted by the table on the book.

• The frictional force between the book and the table.

• The tension in the table.

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How does Newton's Third Law apply to the propulsion of a rocket?

• The rocket's engines push the air backward, and the air pushes the rocket forward.

• The rocket's engines push the exhaust gases backward, and the gases push the rocket forward.

• The rocket's engines create a vacuum that pulls the rocket forward.

• The rocket's engines reduce the gravitational pull on the rocket.

Which of the following is NOT an example of action and reaction forces?

• A bird flapping its wings to fly.

• A person sitting on a chair.

• A car engine running without moving.

• A fish swimming in water.

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Which of the following scenarios demonstrates Newton's Third Law in action?

• A car accelerating due to engine power.

• A rocket launching into space.

• A ball being thrown upwards.

• A book sliding off a table.

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In the context of sports, when a basketball player jumps, what is the reaction force to the player's action of pushing down on the ground?

• The force of gravity pulling the player down.

• The air resistance acting on the player.

• The ground pushing the player upwards.

• The player's weight.

In a swimming pool, when a swimmer pushes the water backward with their hands, what is the reaction force?

• The water pushing the swimmer forward.

• The swimmer's body moving downward.

• The water creating waves.

• The swimmer's hands moving backward.

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Which of the following is an application of Newton's Third Law in sports?

• A cyclist pedaling to increase speed.

• A baseball player hitting a ball with a bat.

• A gymnast performing a flip.

• A sprinter pushing off the starting blocks.

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For years, space travel was believed to be impossible because there was nothing that rockets could push off of in space in order to provide the propulsion necessary to accelerate. This inability of a rocket to provide propulsion is because ...

• space is void of air so the rockets have nothing to push off of.

• gravity is absent in space.

• space is void of air so there is no air resistance in space.

• nonsense! Rockets do provide propulsion by emitting ngases and fuel that propels them through space.

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Astronauts in the International Space Station experience weightless which creates difficulting getting into motion. If an astronaut wasn't close to any walls or objects to push off of, what could they do instead to propel themselves forward?

• Swim through the air

• Push the air with their feet like they would walking on the ground

• Throw something in the opposite direction they want move

• Impossible. They'd be stuck until they floated close enough to something they could push off of

When a bird flaps its wings downwards, it is able to fly upwards. Which statement correctly identifies the action and reaction forces?

• The wings push the air upwards; the air pushes the wings downwards.

• The wings push the air downwards; the air pushes the wings upwards.

• The wings pull the air upwards; the air pulls the wings downwards.

• The wings pull the air downwards; the air pulls the wings upwards.

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