@Heat travels from the Sun to the Earth by?
Radiation
Convection
Conduction

@All the water in a kettle is hot because of:
Convection
Conduction
Radiation

@The inside of a vacuum flask is shiny to:
Stop radiation
Attract heat
Prevent rust

@When you put your hands in front of a fire they feel warm because of:
Radiation
Conduction
Convection

@Heat is transmitted from the Sun to the Earth by:
Radiation
Convection
Diffusion

@Metal saucepan handles feel hot after a while because of:
Conduction
Convection
Evaporation

@A metal spoon in a hot drink soon becomes warm because of:
Conduction
Radiation
Convection

@At the sea side, during the day in calm conditions, the breeze blows from the sea because of:
Convection
Conduction
Radiation

@On a very cold day the metal parts of bicycles feel cold because of:
Conduction
Convection
Evaporation

@A metal radiator feels warm when you touch it. This is due to:
Conduction
Convection
Radiation

@When you are sun bathing you feel hot because of:
Radiation
Conduction
Convection

@At night, at the sea side in calm conditions, the breeze blows out to sea because:
of convection currents in the air
the land is radiating energy
water is evaporating from the sea

@The water is heated as shown in the diagram. The water at point (Y) has just started to boil. The temperature of the water at (X) is:
#e_t1
A lot less than boiling point
Boiling as well
About 2C

@In this experiment the water at (Y) is boiling,while at (X) it is still about room temperature.This shows that:
#e_t1
Water is a poor conductor of heat
Convection is not a very efficient process
Water has very unusual properties

@A container of hot liquid is set up on a piece of cork to help keep it hot. The cork is needed to:
#e_t2
stop heat energy being conducted away
reduce convection currents in the liquid
cut down on energy loss because of radiation effects

@The diagram show a cross section of a saucepan, made of two metals (S) and (T). Which metal should be the best conductor of heat energy?
#e_t3
Metal S
Metal T
They should both be the same

@Where is the most heat energy lost?
#house
Through the roof
Through windows
Through floor

@Which method will save the most on heating costs?
#house
Roof insulation
Double glazing
Fitting draught excluders

@Which of the following statements about the energy loss through floors is correct?
#house
About 15% of the total energy loss is through the floor
Virtually no energy is lost through floors
Over 60% of the total heat loss of the house is through the floor

@Older houses, that no longer use them, have their chimneys and fire places blocked off. This stops heat loss by:
Convection
Conduction
Radiation

