Physics Concepts: Work, Kinetic Energy, and Potential Energy

What is the relationship between net work done on an object and its kinetic energy?

• Net work is equal to the change in kinetic energy.

• Net work is equal to the sum of initial and final kinetic energy.

• Net work is equal to the product of mass and velocity.

• Net work is unrelated to kinetic energy.

According to the work-energy theorem, what does the net work done on an object represent?

• The force applied on the object.

• The total energy of the object.

• The change in kinetic energy.

• The change in potential energy.

How is gravitational potential energy calculated for an object near the Earth's surface?

• By multiplying mass, gravitational field strength, and height.

• By dividing mass by gravitational field strength.

• By adding mass and gravitational field strength.

• By subtracting height from gravitational field strength.

What force is primarily responsible for the work done on a falling tennis ball?

• Magnetic force

• Friction

• Air resistance

• Gravity

In the context of work and energy, what does the term 'displacement' refer to?

• The distance traveled by an object.

• The speed of an object.

• The time taken by an object to move.

• The change in position of an object.