1 c right
2 b right
1. Which of the following best shows the transfer of heat by radiation?
a) the hot sand in very painful to step on with bare feet
b)the soup pot boils from the bottom towards the top
c)the wood stove is painted a flat black colour for maximum heating effect
d)the use of fossil fuels produces smog and carbon dioxide
my answer: c
2. Which of the following best shows the transfer of heat by convection?
a) the hot sand in very painful to step on with bare feet
b)the soup pot boils from the bottom towards the top
c)the wood stove is painted a flat black colour for maximum heating effect
d)the use of fossil fuels produces smog and carbon dioxide
my answer: b
3. Water has specific heat of 4200 J per kilogram per degree celsius. This means that 2 kg of water will release 8400 J of energy when it cools down by 1 degree celsius. True or false?
my answer: True
4. A calorimeter adds calories of heat to a sample. True or False
my answer: false
5. Thermal energy can only be carried or transferred by rapidly moving particles. True or false
my answer: false
6. If heat is added to a sample of material it will always increase in temperature. True or false
my answer: false
3 answers
Oh, and we disagree on 6
I need a sonsvjsheb
1 answer