1. if a gallon of milk and a cup of milk are both at 8°c, the of the gallon is higher.
potential energy
heat content
temperature
kinetic energy
2. as the vibration of molecules increases, the of the substance increases.
temperature
internal energy
kinetic energy
all of the above
3. an indirect measurement of the speed of molecules is
heat flow
temperature
friction
energy
4.how many calories are absorbed by a copper spoon with a mass of 200 grams as it changes from 28°c to 33°c?
0.00027
3
90
13,000
5. 5.25 calories are absorbed by an iron nail. how many joules is this?
1.07
9.43
12.6
21.9
6. the specific heat capacity of aluminum is 0.22 cal/g°c. how much energy needs to flow into 20.0 grams of aluminum to change its temperature by 15°c?
0.017 cal
0.29 cal
66 cal
1363 cal