Physics Fundamentals Quiz

What is a vector?

• A quantity with only magnitude

• A quantity with both magnitude and direction

• A measure of inertia

• A force that opposes motion

Which law states that an object will remain at rest or move with a constant velocity if there is no net force on it?

• Newton's First Law

• Newton's Second Law

• Newton's Third Law

• Law of Universal Gravitation

What is the formula for calculating torque?

• F = ma

• τ = rF sin(θ)

• v = u + at

• F = μN

What is the difference between static friction and kinetic friction?

• Static friction acts on moving objects, kinetic friction on stationary objects

• Static friction acts on stationary objects, kinetic friction on moving objects

• Both act on moving objects

• Both act on stationary objects

How is average velocity calculated?

• Total distance traveled divided by total time

• Total displacement divided by total time

• Change in velocity divided by time

• Force divided by mass

What does Newton's Third Law state?

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

• Acceleration is the result of a net force

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

• Force is equal to mass times acceleration

What is the role of gravity in forces and acceleration?

• It is a force that opposes motion

• It is the attractive force between two objects due to their masses

• It is a twisting force that causes rotation

• It is the force experienced by a given mass due to Earth's attraction

What is the centripetal force formula?

• F_c = ma

• F_c = μN

• F_c = rF sin(θ)

What is the unit of work in the SI system?

• Newton

• Joule

• Watt

• Pascal

Which type of energy is associated with the movement of objects and depends on mass and speed?

• Potential Energy

• Chemical Potential Energy

• Kinetic Energy

• Electrical Potential Energy