Exploring Newton's Laws of Motion

What is the first law of motion proposed by Newton?

• An object in motion will eventually stop without any force.

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

• An object at rest will always remain at rest regardless of external forces.

• An object in motion will change direction only if it is pushed.

How does Newton's second law relate force, mass, and acceleration?

• Mass is equal to force times acceleration (m = F * a).

• Acceleration is equal to force minus mass (a = F - m).

• Force is equal to acceleration divided by mass (F = a / m).

• Force is equal to mass times acceleration (F = m * a).

What is the formula for calculating force according to Newton's second law?

• F = m + a

• F = m - a

• F = m / a

• F = m * a

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

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

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

• A car comes to a stop when the brakes are applied.

What is inertia and how does it relate to Newton's first law?

• Inertia is the speed of an object in motion.

• Inertia is the force that causes an object to move faster.

• Inertia is the energy stored in a moving object.

• Inertia is the resistance of an object to change its state of motion, as described by Newton's first law.

How do Newton's laws apply to a car accelerating on a flat road?

• The car moves because of the gravitational pull from the Earth.

• Acceleration is caused by the car's tires spinning faster than the road surface.

• Newton's laws explain that a car accelerates due to the force generated by the engine overcoming friction and inertia.

• The car accelerates due to the weight of the passengers pushing it forward.

What role does friction play in Newton's laws of motion?

• Friction opposes motion and affects net force in Newton's laws.

• Friction only acts in one direction, ignoring other forces.

• Friction has no effect on motion according to Newton's laws.

• Friction enhances motion and increases net force.

How did Newton's laws change the understanding of motion in his time?

• Newton's laws had no impact on scientific thought during his time.

• Newton's laws were primarily focused on celestial bodies only.

• Newton's laws confirmed Aristotelian theories of motion.

• Newton's laws provided a mathematical framework for understanding motion, replacing Aristotelian concepts and enabling predictions about object behavior.

What is the significance of the concept of action and reaction in Newton's third law?

• The significance of action and reaction is that it illustrates the mutual forces between interacting objects, ensuring the conservation of momentum and providing a foundational principle for understanding physical interactions.

• It only describes forces acting on a single object.

• Action and reaction only apply to stationary objects.

• The concept is irrelevant to momentum conservation.

1.Define physics

2. What are the branches of physics