Revision 30/11

Question 1

Heat transfers (c, t c, c)

Answer 1

Conduction, thermal conductivity, convection

Question 2

Define conduction

Answer 2

Vibrating particles transfer energy to neighbouring particles

Question 3

Define thermal conductivity

Answer 3

How quickly energy is transferred through a material

Question 4

Define convection

Answer 4

Where particles move from hotter regions to cooler regions

Question 5

Types of thermal insulation (c w, s i, d g, d p, h w t j, t c, l)

Answer 5

Cavity walls, soft insulation, double glazing, draught protectors, hot water tank jacket, thick curtains, lubrication >:)

Question 6

Effieciency

Answer 6

Useful energy output
Total energy in

Question 7

Non renewable (b, n f, f f, c, n g, c o, m)

Answer 7

Biofuels, nuclear fuels, fossil fuels, coal, natural gas, crude oil, metal

Question 8

Renewable (w f, h e, s p, t, g t, c, l, w)

Answer 8

Wind farm, hydroelectric, solar power, tidal, geothermal, cotton, leather, wood