Exploring Newton's Laws of Motion

What does Newton's First Law of Motion state about an object in motion?

• It will stop immediately without external force.

• It will change direction randomly.

• It will continue moving at a constant velocity unless acted upon by an unbalanced force.

• It will accelerate without any force.

What role does friction play according to Newton's First Law?

• It causes objects to accelerate.

• It increases the velocity of objects.

• It has no effect on moving objects.

• It acts as an unbalanced force that slows down objects.

What happens to an object's motion when acted upon by an unbalanced force according to Newton's First Law?

• It reverses direction.

• It continues in the same state of motion.

• It stops immediately.

• Its state of motion changes.

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According to Newton's Second Law, what does the equation F=ma imply?

• Mass is the product of force and acceleration.

• Acceleration is not related to force.

• Force is the product of mass and acceleration.

• Force is inversely proportional to mass.

How does doubling the mass affect the force if acceleration is constant?

• It quadruples the force.

• It has no effect on the force.

• It halves the force.

• It doubles the force.

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What is the unit of force in the context of Newton's laws?

• Kilograms

• Meters per second squared

• Newtons

• Joules

What is demonstrated by Newton's Third Law of Motion?

• Velocity is constant without external forces.

• Force equals mass times acceleration.

• Objects in motion remain in motion unless acted upon.

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

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Which of the following is NOT an example of Newton's Third Law?

• A rocket launching by expelling gases out.

• Gravity pulling a person down while sitting.

• A fish swimming by pushing water backwards.

• Two people pushing against each other.

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What does momentum depend on according to the discussion?

• Both mass and velocity.

• Only on mass.

• Only on velocity.

• Neither mass nor velocity.

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How does the momentum of a semi-truck compare to that of a car if both are traveling at the same speed?

• The semi-truck has less momentum due to higher mass.

• The semi-truck has more momentum due to higher mass.

• The car has more momentum due to higher velocity.

• Both have the same momentum.