Work Energy Theorem

Front

What is the Work-Kinetic Energy Theorem?

Back

The net work done by a net force acting on an object is equal to the change in the kinetic energy of the object.

Front

What is the formula for work?

Back

Work is defined as the product of the net force on an object and the distance through which the object is moved.

Front

How much work is done when a 10.0 kg box is accelerated from 2.0 m/s to 4.0 m/s?

Back

60 J

Front

If my velocity triples, by how many times does my kinetic energy increase?

Back

9 times.

Front

What is the force required to push a 12 kg book from rest to a final velocity of 10 m/s over a distance of 6 m?

Back

100 N

Front

Define kinetic energy.

Back

Kinetic energy is the energy an object possesses due to its motion, calculated as KE = 1/2 mv².

Front

What is the unit of work?

Back

The unit of work is the joule (J).

Front

What is the relationship between work and energy?

Back

Work done on an object results in a change in energy, specifically kinetic energy.

Front

What is the formula for calculating work done?

Back

Work (W) = Force (F) × Distance (d) × cos(θ), where θ is the angle between the force and the direction of motion.

Front

What happens to kinetic energy if the mass of an object is doubled while keeping the velocity constant?

Back

The kinetic energy doubles.