chapter 10 blue words

Question 1

a law that states that energy cannot be made or lost. However, energy can be transformed from one type to another or transferred from one object to another.

Answer 1

Law of Conservation of Energy

Question 2

the energy made available by the flow of electric charge through a conductor

Answer 2

electrical energy

Question 3

energy stored due to the height of an object above a base level

Answer 3

gravitational potential energy

Question 4

potential energy derived from chemical reactions

Answer 4

chemical energy

Question 5

the potential energy stored in a stretched elastic material

Answer 5

elastic potential energy

Question 6

the energy stored at the centre of atoms, the tiny particles that make up all substances. Nuclear energy can be released from the radioactive metals uranium or plutonium, and transformed into electrical energy in a nuclear power station.

Answer 6

nuclear energy

Question 7

the fraction of energy supplied to a device as useful energy. It is usually expressed as a percentage.

Answer 7

efficiency