Take time to carefully work through all questions and make calculations. YOU CAN DO IT!
Different heat capacities
The same volume
Different abilities to conduct heat
Different densities
Different volumes
5.2 J
3.3 x 103 J
8.0 x 10–1 J
3.3 x 105 J
2.1 x 106 J
Heat transfer
Convection
Radiation
Heat exchange
Conduction
70%
14%
28%
1.4%
7.0%
The iron will have a colder temperature than the watermelon.
The watermelon will have a colder temperature than the iron.
The iron will feel colder because it is a good conductor of heat which is drawn from your fingers.
The iron will feel colder because it has a very high specific heat capacity.
They both feel equally cold.
The fence post has the lowest temperature.
The block will have the highest temperature.
The fence post, the block of wood, and the snow will all be at a temperature of -12 Celcius.
The process of thermal equilibrium causes cold to flow from objects with low specific heat capacities.
Determining which object will have the lowest temperature is impossible without knowing the specific heat capacities.
The kinetic energy of the water molecules remains constant, while heat energy is being released to its surroundings.
The kinetic energy of the water molecules is increasing, while heat energy is being absorbed by the molecules.
Heat energy from the surroundings is being used to increase the kinetic energy of the water molecules.
The kinetic energy of the water molecules is being transferred to heat energy being released to its surroundings.
Only the kinetic energy of the particles is being increased.
50 J
1000 J
2000 J
3000 J
0.833 J
200 g
500 g
667 g
1250 g
1470 g
1.2 Celcius
1.8 Celcius
2.0 Celcius
11.3 Celcius
0 Celcius (not all the ice melts)
Low specific heat capacity
High specific heat capacity
Low heat of fusion
High heat of fusion
Problem
0.001,40 J/kg K
7.05 J/kg K
3,630,000 J/kg K
1600 J/kg K
None of the above
42 Celcius
15 Celcius
48 Celcius
96 Celcius
99 Celcius
1 min
10 min
1 hour
10 hours
1 day
6.30 Celcius
63 Celcius
16300 Celcius
2430 Celcius
4000 Celcius