Energy and Heating Cooling CSV

Question 1

Heat always flows from a hot object to a

Answer 1

Cold object

Question 2

What is the law of conservation of energy

Answer 2

Energy cannot be created or destroyed, it merely changes from one form to another

Question 3

What are the 9 types of energy

Answer 3

Kinetic, electrical, light, thermal, sound, gravitational potential, nuclear, elastic, chemical

Question 4

When an aeroplane comes in to land, its speed and height both decrease. The two forms of energy which are decreasing are

Answer 4

Kinetic and Gravitational Potential

Question 5

A moving car mostly has

Answer 5

Kinetic energy

Question 6

What is the unit of energy

Answer 6

Joules (J) or Kilojoules (kJ)

Question 7

Name 8 renewable sources of energy

Answer 7

Solar, waves, wind, tides, hydroelectric power, biomass, wood & geothermal

Question 8

Name 4 non-renewable sources of energy

Answer 8

Coal, oil, gas, nuclear

Question 9

What is the ultimate source of energy

Answer 9

Sun

Question 10

What energy transfer takes place when an apple falls from a tree

Answer 10

GPE Æ KE

Question 11

What energy transfer takes place when an apple hits the ground

Answer 11

KE Æ Sound + heat

Question 12

What are the origins of fossil fuels

Answer 12

Sun

Question 13

What is a fossil fuel

Answer 13

A fuel created from the dead plants and animals that lived millions of years ago

Question 14

What are the issues related to coal fired power stations

Answer 14

Global warming