chapter 7 review

Match it! Select the correct answer from the pull down...Good luck!

when work is done on an object, causing the object to move, the object gains

A car has a mass of 6200 kg and is moving at a velocity of 15 m/s. A 20,000 N force is used to move the car 34.85 m. What is the car's kinetic energy?

what is the unit of measurement for work

A car jack exerts a force of 4000 to raise a car 1.2 meters. The amount of work done by the jack is _____Joules

What direction does force need to act to produce the greatest amount of work?

Running up a flight of stairs, Maria generates 350 watts of power. If it took her 7 seconds to climb the stairs, how much work did she do?

The action that would require no work to be done is

An electric heater raises the temperature of water by adding 5250 J of energy to the water in 20 seconds. What is the needed power for this to happen?