"Understanding Newton’s 3 Laws of Motion"

What is the formula for Newton's Second Law of Motion?

• F = m × a

• F = m + a

• F = m ÷ a

• F = a × m²

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According to Newton's Second Law, which of the following explains why it’s harder to push a heavy object than a light one?

• The object’s velocity increases faster.

• The object’s mass requires more force to accelerate.

• The object’s inertia decreases.

• • The object’s speed decreases.

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Which example best demonstrates Newton’s First Law?

• A soccer ball will keep rolling until you stop it with your foot.

• • A rocket’s engine pushes it into space.

• A car accelerates faster when it’s lighter.

• You push a wall, and the wall pushes you back.

Which of the following scenarios best demonstrates Newton’s Third Law of Motion?

• A person leans forward while the car stops quickly.

• A person jumps off a diving board and pushes down on the board.

• A person throws a ball in the air, and it falls back down.

• A person kicks a soccer ball, and it rolls.

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What is the action in the example of a rocket launch, and what is the reaction?

• Action: Rocket’s engine burns fuel. Reaction: The fuel propels the rocket up.

• Action: The rocket pushes against the ground. Reaction: The ground pushes back.

• Action: The rocket pushes gas down. Reaction: The rocket moves upward.

• Action: The rocket uses more fuel. Reaction: The rocket’s speed increases.

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Which of Newton’s Laws explains why you feel pushed forward when a car suddenly stops?

• Newton’s First Law (Inertia)

• Newton’s Second Law (Force = Mass × Acceleration)

• Newton’s Third Law (Action and Reaction)

• Newton’s Law of Gravity

What does Newton's First Law of Motion (the Law of Inertia) state?

• An object at rest will stay at rest, and an object in motion will stay in motion unless acted upon by an external force.

• An object will stay in motion unless acted upon by an equal force.

• Force equals mass times acceleration.

• For every action, there is an equal and opposite reaction.

According to Newton’s First Law, what will happen to a soccer ball if no force acts on it?

• It will stop.

• It will keep moving at a constant velocity.

• It will speed up.

• • It will accelerate.

Which of the following scenarios illustrates Newton’s Second Law of Motion?

• • A car accelerates faster with a lighter load.

• A person pushes against a door and it opens.

• A tennis ball moves when hit by a racket.

• A soccer player kicks a ball, and it moves in the opposite direction.

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1. In the example of pushing a shopping cart, which law explains why a full cart requires more force to move?

• Newton’s First Law (Inertia)

• Newton’s Second Law (Force = Mass × Acceleration)

• Newton’s Third Law (Action and Reaction)

• • Newton’s Law of Gravity

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