Work And Energy

Question 0

Efficiency

Answer 0

Ratio of the output of 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

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 and 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 to objects

Question 10

Law of conservational of energy

Answer 10

States that energy cannot be created or destroyed