1) The kind of heat transfer that travels through space in electromagnetic waves is ______________________. a) insulation b) Radiation c) Convection 2) Which states of matter are fluids? a) Solids, liquids and gases b) Gases only c) Gases and liquids 3) What method of heat transfer explains why hot air balloons rise? a) Radiation b) Convection c) Conduction 4) What method of heat transfer can occur in a vacuum? a) Radiation b) Conduction c) Convection 5) Food being heated in a microwave. a) Convection b) Radiation c) Conduction 6) Energy is measured in..... a) watts b) joules c) degrees celsius 7) Power is...... a) energy transferred per second b) change in temperature c) how strong you are 8) A computer with a power rating of 500 watts a) transfers more energy than a 700 watt TV b) transfers more energy than a 800 watt microwave c) transfers more energy than a 300 watt mobile phone 9) Power is calculated using a) energy divided by time b) energy multiplied by time c) energy added to time 10) Efficiency is calculated using a) useful energy divided by total energy b) useful energy times total energy c) useful energy adeed to total energy 11) Water boils at a) 0 degrees celsius b) 100 degrees celsius c) 200 degrees celsius 12) Wood is a good a) conductor b) insulator 13) Metal is a good a) conductor b) insulator 14) It is good to reduce wasted energy transfers because a) less heat is released into the surroundings/environment b) you can save money c) both these reasons

Energy transfer

podle
Vložit

Výsledková tabule/Žebříček

Vizuální styl

Možnosti

Přepnout šablonu

Obnovit automatické uložení: ?