Newton's Laws

What is the relationship between action and reaction forces?

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

• Action forces are always greater than reaction forces.

• Reaction forces occur only when action forces are applied continuously.

• Action and reaction forces can exist independently of each other.

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What is inertia?

• Inertia is the tendency of an object to resist changes in its state of motion.

• Inertia is the force that causes an object to accelerate.

• Inertia is the mass of an object multiplied by its velocity.

• Inertia is the energy stored in an object due to its position.

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How does mass affect acceleration according to Newton's second law?

• Acceleration is directly proportional to mass; more mass requires less force to achieve the same acceleration.

• Acceleration is inversely proportional to mass; more mass requires more force to achieve the same acceleration.

• Mass has no effect on acceleration; it is solely determined by the force applied.

• Acceleration is constant regardless of mass; it only depends on the object's velocity.

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What is the formula for Newton's second law?

• F = ma (Force equals mass times acceleration)

• F = mv^2 (Force equals mass times velocity squared)

• F = m/g (Force equals mass divided by gravity)

• F = m + a (Force equals mass plus acceleration)

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What force prevents you from slipping on the floor?

• Gravity between the sole of your shoe and the floor.

• Friction between the sole of your shoe and the floor.

• Magnetism between the sole of your shoe and the floor.

• Inertia between the sole of your shoe and the floor.

What happens when a hammer puts force on a nail?

• The nail puts an equal and opposite force on the hammer.

• The hammer drives the nail into the wood without any reaction.

• The nail bends and absorbs the force from the hammer.

• The hammer breaks the nail into pieces.

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What is Newton's first law of motion?

• An object at rest stays at rest, and an object in motion stays in motion unless acted upon by an unbalanced force.

• An object will accelerate in the direction of the net force acting on it.

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

• An object in motion will eventually come to a stop without any external force.

What does it mean when more force is required to accelerate an object with more mass?

• This describes Newton's first law, the law of inertia.

• This describes Newton's second law, the law of acceleration.

• This describes Newton's third law, the law of action and reaction.

• This describes the law of universal gravitation.

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What role does friction play in motion?

• Friction accelerates the motion of objects.

• Friction has no effect on motion.

• Friction opposes the motion of objects and can cause them to stop.

• Friction only affects objects at rest.

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Can you give an example of Newton's third law in action?

• When you jump off a small boat, you push the boat backward as you move forward.

• A ball rolling down a hill accelerates due to gravity.

• A person pushing against a wall feels the wall pushing back with equal force.

• A car accelerating forward while the passengers feel pushed back in their seats.

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