Chapter 7

Question 1

Energy

Answer 1

the capacity to do work

Question 2

Kinetic Energy

Answer 2

the energy of an object that is due to the object’s motion

Question 3

Potential Energy

Answer 3

the energy that an object has because of the position, shape, or condition of the object

Question 4

Mechanical Energy

Answer 4

the amount of work an object can do because of the object’s kinetic and potential energies

Question 5

Energy Conversion

Answer 5

a change from one form of energy to another

Question 6

Friction

Answer 6

a force that opposes motion between two surfaces that are in contact

Question 7

Law Of Conservation Of Energy

Answer 7

states that the total energy of an isolated system remains constant

Question 8

Nonrenewable Resource

Answer 8

is a resource of economic value that cannot be readily replaced by natural means on a level equal to its consumption

Question 9

Fossil Fuel

Answer 9

a natural fuel such as coal or gas, formed in the geological past from the remains of living organisms

Question 10

Renewable Resource

Answer 10

a resource which can be used repeatedly because it is replaced naturally