Work And Energy

Question 0

Efficiency

Answer 0

Ratio of the output work done by the machine to the input work done on the machine, expressed as a percentage

Question 1

Work

Answer 1

Transfer of energy when a force is applied over a distance

Question 2

Mechanical Advantage

Answer 2

Ratio of the output force exerted by a machine to the input force applied to the machine.

Question 3

Energy

Answer 3

The ability to cause change, measured in joules

Question 4

System

Answer 4

A region or set of regions around which a boundary can be defined

Question 5

Kinetic Energy

Answer 5

Energy a moving object has because of its motion; determined by the mass speed of the object.

Question 6

Potential Energy

Answer 6

Energy that is stored due to the interactions between objects

Question 7

Elastic Potential Energy

Answer 7

Energy that is stored by compressing or stretching an object.

Question 8

Chemical Potential Energy

Answer 8

Energy that is due to chemical bonds.

Question 9

Gravitational Potential Energy

Answer 9

Energy that is due to the gravitational force between objects

Question 10

Law of Conservation Energy

Answer 10

States that energy can’t be created or destroyed.