Understanding Newton's Third Law of Motion

What is often referred to as the Law of action and reaction?

• Newton's third law of motion

• The law of gravity

• Newton's second law of motion

• Newton's first law of motion

According to Newton's third law, for every action, there is:

• An equal and opposite reaction

• A reaction only in a vacuum

• No reaction

• A slightly weaker reaction

What must object one do to make object two move?

• Apply less force than object two

• Not apply any force

• Apply the same amount of force

• Apply enough force

What is necessary for rockets to reach space?

• Magnetic propulsion

• Wind resistance

• A lot of force

• Solar energy

How do rockets generate the needed thrust to propel into space?

• By burning solid fuel only

• By expelling gas downwards

• By pulling in air from the atmosphere

• By using solar panels

What happens when Joan jumps into the air?

• The ground pushes her down

• She floats due to lack of gravity

• Her feet send force downwards

• Her feet send force upwards

What is the reaction when pushing the ground with legs while jumping?

• The ground absorbs all the force

• The ground pushes back with equal force

• The ground moves downwards

• No reaction occurs

What determines the height of Joan's jump?

• The type of ground

• The time of day

• The force she uses to push the ground

• The color of her shoes

In swimming, how does one travel further?

• By holding one's breath

• By pushing the water with more effort

• By floating

• By doing a leisurely stroke

What is the effect of pushing water with more effort while swimming?

• You stay in place

• You sink

• You travel faster and further

• You cool down the water