Exploring Laws of Motion and Work 2425

What does Newton's First Law state about motion?

• An object will change direction only if a force is applied.

• An object will accelerate if no forces are acting on it.

• An object will remain at rest or in uniform motion unless acted upon by a net external force.

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

How does inertia relate to Newton's First Law?

• Inertia is the same as mass and does not relate to motion.

• Inertia only applies to objects in motion, not at rest.

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

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

Can you give an example of Newton's First Law in everyday life?

• A person sitting on a chair will suddenly fly off if no one is pushing them.

• A ball thrown in the air will continue to rise indefinitely without any force acting on it.

• A book resting on a table remains at rest until a force acts on it.

• A car in motion will stop immediately when the driver takes their foot off the gas.

What is the formula for Newton's Second Law?

• F = m - a

• F = m / a

• F = m * a

• F = m + a

How does mass affect acceleration according to Newton's Second Law?

• Mass inversely affects acceleration; greater mass results in lower acceleration for the same force.

• Mass has no effect on acceleration.

• Greater mass always results in greater acceleration.

• Acceleration is independent of mass and force.

What is the relationship between force, mass, and acceleration?

• Force is the product of mass and velocity.

• Force equals mass times acceleration (F = m * a).

• Acceleration is independent of mass and force.

• Mass is equal to force divided by acceleration.

Can you explain Newton's Third Law in your own words?

• For every action, there is a proportional reaction.

• Every force has no effect on the opposite force.

• An object at rest will remain at rest unless acted upon by a force.

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

What is an example of action and reaction as per Newton's Third Law?

• A balloon deflating pushes air out in all directions.

• A car accelerating forward pushes the road backward.

• A person sitting on a chair exerts no force on it.

• A person jumping off a boat pushes the boat backward.

How do the laws of motion apply to a car accelerating?

• A car accelerates only when the brakes are released.

• The engine's power is irrelevant to the car's acceleration.

• The laws of motion explain that a car accelerates due to the net force from the engine overcoming inertia, as described by Newton's second law.

• A car accelerates because it is going downhill.

What is the definition of work in physics?

• Work is the total mass of an object.

• Work is the energy transferred by heat.

• Work is the speed of an object multiplied by time.

• Work is the product of force and distance in the direction of the force.