Work And Energy Vocab

Question 0

Mechanical advantage

Answer 0

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

Question 1

Efficiency

Answer 1

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

Question 2

Energy

Answer 2

The ability to cause change measured in joules

Question 3

System

Answer 3

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

Question 4

Kinetic energy

Answer 4

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

Question 5

Potential energy

Answer 5

Energy that is stored due to the interactions between objects

Question 6

Elastic potential energy

Answer 6

Energy that is stored by compressing or stretching an object

Question 7

Chemical potential energy

Answer 7

Energy that is due to chemical bonds

Question 8

Gravitational potential energy

Answer 8

Energy that is due to the gravitational force between objects

Question 9

Law of conservation of energy

Answer 9

States that energy cannot be created or destroyed