Energy And Work

Question 1

A unit used to measure energy and work. One calorie is equal to 4.18 joules of energy. One joule of work is done when a force of one Newton moves an object to one meter.

Answer 1

Joule

Question 2

Stored energy; the energy an object has due to its position, molecular arrangement, or chemical composition.

Answer 2

Potential energy

Question 3

The energy of motion. A moving object has the most kinetic energy at the point where it moves the fastest.

Answer 3

Kinetic energy

Question 4

A combination of the kinetic energy and potential energy an object has.

Answer 4

Mechanical energy

Question 5

Energy can not disappear. No matter how its transferred to transformed.

Answer 5

conservation energy

Question 6

The rate at which work is done.

Answer 6

Power

Question 7

The unit of measurement for power, which is equal to one joule of work done or energy transferred in one second. For example, a 75 W light bulb converts electrical energy into heat and light at a rate of 75 joules per second.

Answer 7

Watt

Question 8

The unit of measurement of power for engines and motors. One horsepower equals 745 watts.

Answer 8

Horsepower

Question 9

The use of gravity on an object.

Answer 9

Work