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

1. As the vibration of molecules increases, the _____ of the substance increases.
   
   

temperature

internal energy

kinetic energy

all of the above

1. 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

1. 5.25 calories are absorbed by an iron nail. How many joules is this?
   
   

1.07

9.43

12.6

21.9

1. 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