Forces and Energy Basics - Quiz

What is the other name for the first law of motion?

• Friction Law

• Law of Inertia

• Law of Gravity

• Law of Acceleration

What is the relationship between force, mass, and acceleration according to the second law of motion?

• Force = Mass - Acceleration

• Force = Mass + Acceleration

• Force = Mass / Acceleration

• Force = Mass x Acceleration

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Define inertia and give an everyday example.

• Inertia is the resistance of an object to changes in rest. Example: a book on a table.

• Inertia is the resistance of an object to changes in motion. Example: passengers moving forward when a car stops suddenly.

• Inertia is an object's tendency to change its motion. Example: a ball rolling downhill.

• Inertia is an object's tendency to accelerate. Example: passengers decelerating when a car does.

How is force related to acceleration?

• Force has no effect on acceleration

• Force is directly proportional to acceleration

• Force is inversely proportional to acceleration

• Force and acceleration are not related

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State the law of conservation of energy and give an example.

• Energy can be created and destroyed, like when a battery is charged.

• Energy cannot be created or destroyed, only change forms. For example, a thrown ball's potential energy becomes kinetic energy as it falls.

• Energy can only change forms, like when a light bulb is turned on.

• Energy can only be destroyed, like when a car runs out of gas.

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Explain the concept of inertia in relation to Newton's laws.

• Inertia is the tendency of an object to easily change its state of motion.

• Inertia is the tendency of an object to accelerate without any external force.

• Inertia is the tendency of an object to resist changes in its state of motion. It is the basis for the first law of motion, the law of inertia.

• Inertia is the tendency of an object to move in a straight line at constant speed.

Give an example of the law of conservation of energy.

• A car moving on a road

• A plant growing from a seed

• A candle burning

• Kinetic energy converting to potential energy and vice versa in a thrown ball.

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Give an example of balanced forces.

• A car accelerating.

• A book on a table.

• A ball rolling downhill.

• A rocket launching.

How do unbalanced forces affect an object's motion?

• Unbalanced forces do not affect motion.

• Unbalanced forces change speed or direction.

• Unbalanced forces keep an object at rest.

• Unbalanced forces increase mass.

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What is the third law of motion?

• Every action has an equal and opposite reaction.

• Force equals mass times acceleration.

• An object in motion stays in motion unless acted upon by an unbalanced force.

• Energy can only change forms, not created or destroyed.

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