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- 1. Multiple Choice
Energy transferred from a higher temperature object to a lower temperature object is _______.
heat
kinetic energy
thermal energy
internal energy
- 2. Multiple Choice
Which best describes temperature?
It is equal to the heat difference between two objects
It is proportional to the total energy in an object
It is proportional to the average kinetic energy of particles in an object
It is equal to an object's specific heat capacity
- 3. Multiple Choice
Which is the sum of the kinetic and potential energies of an object?
Heat energy
Specific heat energy
Thermal energy
Temperature
- 4. Multiple Choice
How much heat is required to raise the temperature of a 225 g lead ball from 15.0 oC C to 25.0 oC? The specific heat of lead is 128 J/kg.K
725 J
576 J
145 J
288 J
- 5. Multiple Choice
If you wanted to know how much the temperature of a particular piece of material would rise when a known amount of heat was added to it, which of the following quantities would be most helpful to know?
initial temperature
specific heat
density
coefficient of linear expansion
- 6. Multiple Choice
Which thermal exchange process does not require a medium?
Conduction
Convection
Radiation
Evaporation
- 7. Multiple Choice
Which thermal exchange process carries thermal energy through boiling water as it heats up on top of a stove?
Conduction
Convection
Radiation
Evaporation
- 8. Multiple Choice
Two beakers A & B contain water at a temperature of 40 oC. Beaker A contains 100 g of water and beaker B contains 250 g of water. Which of the following statements is true about them?
I. Beaker A has less thermal energy than Beaker B
II. Both beakers A and B have the same thermal energy
III. The water molecules in both beakers A and B have the same average kinetic energy
I only
II only
III only
I and III only
- 9. Multiple Choice
Two isolated objects, at different temperatures, are put in contact with each other. Which of the following is/ are true when the system reaches thermal equilibrium?
I. The cool object gains the same amount of heat lost by the warm object.
II. Both objects will have the same final temperature
III. Both objects lose the same amount of heat
I only
II only
I and II only
II and III only
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