Work, power, and energy quiz review

In physics, work is defined as _____.

• half the mass times the velocity squared

• Force times distance

• energy based on its location

• work divided by the time taken

An object that has kinetic energy must be _____.

• heavy

• moving

• located high

• at rest

The unit of work is the _____

• watt

• newton

• joule

• meter

power is defined ad the ______.

• force times distance

• half the mass times the velocity squared

• mass times gravity times height

• work done on an object divided by the time taken

The unit of power is the _____.

• watt

• joule

• newton

• meter

potential energy is the energy an object has because of its ______.

• velocity

• mass

• location

• momentum

kinetic energy of an object is equal to

• force times distance

• half the mass times the velocity squared

• the work per unit time

• mass times gravity

An object that has kinetic energy must have

• force

• distance

• height

• momentum

how much work is done on a box when a force of 50N pushes it 0.5 m

• 50J

• 25J

• 100J

• 0J

Which has more kinetic energy a car traveling at 20m/s or one half massive traveling at 40m/s

• the half massive car

• the car

• neither

• both are the same