work and energy vocab

Question 0

efficiently

Answer 0

ratio of the output work done by 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 output force exerted by a machine to input force applied to the machine

Question 3

energy

Answer 3

the ability to cause change, measured in joules

Question 4

system

Answer 4

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 go the object

Question 6

potential energy

Answer 6

energy that is stored due to interactions

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 of energy

Answer 10

states that energy cannot be created or destroyed