Work & Energy

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 force of a new Newton moves an object one meter.

Answer 1

Joule

Question 2

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

Answer 2

Potential Energy

Question 3

The energy if 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 machines multiples the input force; output force divided by input.

Answer 4

Mechanical Energy

Question 5

How ever energy is transferred or transformed it is still there.

Answer 5

Conservation of 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 for 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 fro engines and motors. One horsepower equals 754 watts.

Answer 8

Horsepower

Question 9

The force to move an object over a distance.

Answer 9

Work

Question 10

Any device that makes doing work easier.

Answer 10

Machine