WorksheetsUnderstanding Work, Energy, and Power
Total questions: 10
Worksheet time: 5mins
Define work in the context of physics.
Work is the force applied to an object without any movement.
Work is the energy transferred when a force is applied to an object over a distance.
Work is the speed at which an object moves.
Work is the amount of mass an object has.
What is the formula for calculating kinetic energy?
KE = m * v
KE = m * v^2 / 2
KE = 0.5 * m * v^2
KE = 0.5 * m * v
Explain the difference between kinetic and potential energy.
Kinetic energy is energy of motion; potential energy is stored energy based on position.
Kinetic energy is the energy of an object when it is stationary.
Potential energy is the energy of an object in motion.
Kinetic energy is the energy stored in an object at rest.
State the law of conservation of energy.
Energy cannot be created or destroyed, only transformed.
Energy is always lost in transformations.
Energy can only be created from matter.
Energy can be created and destroyed.
How is work related to energy transfer?
Work is the transfer of energy through force applied over a distance.
Energy can exist without work being done.
Work is the same as energy.
Work is only related to heat transfer.
Give an example of potential energy in everyday life.
A person walking down the street.
A cup of coffee on a table.
A car parked in a garage.
A book on a shelf.
What happens to kinetic energy when an object slows down?
Kinetic energy increases when an object slows down.
Kinetic energy is unaffected by the object's speed.
Kinetic energy decreases when an object slows down.
Kinetic energy remains constant when an object slows down.
Describe a scenario where energy is conserved.
A battery discharging in a flashlight.
A car accelerating on a highway.
A roller coaster gaining speed on a downhill slope.
A pendulum swinging in a closed system.
How do machines affect the work done on an object?
Machines can reduce the amount of force needed to do work on an object.
Machines can only change the direction of force applied to an object.
Machines have no effect on the work done on an object.
Machines increase the amount of force needed to do work on an object.
What units are used to measure power in physics?
Watt (W)
Volt (V)
Newton (N)
Joule (J)
