Thermal Physics

If two objects have different temperatures, heat will flow from the warmer object to the cooler one UNTIL ____________

• one reaches a temperature of zero
• they both have an equal temperature
• one runs out of energy

Temperature is a measure of the...

• total energy in a substance
• total kinetic energy in a substance
• average potential energy in a substance
• average kinetic energy of molecules in a substance

What letter represents heat?

• S
• C
• T
• Q

To convert from Celsius to Kelvin:
 
K = Degrees Celsius + __________  

• 251 K
• 275 K
• 213 K
• 273 K

No more energy can be removed from matter at:

• its freezing point
• 0°C
• absolute zero
• 273 K

Joules and calories are units of measurement for __________________.

• heat

• insulators

• conductors

• thermometers

The amount of energy needed to raise the temperature of 1 gram of water by 1 ^oC is ____________________________.

• 1 calorie

• 1 joule

• 2 joules

• 1 kilogram

Which of the following is equivalent to a temperature of –100°C?

• –373 K

• –173 K

• 173 K

• 373 K

What is the definition of CONVECTION

• When heat transfers through waves.
• When heat transfers from objects that are touching.
• a  hot liquid or air that  expands, becomes less dense, and rises or becomes more dense, and sinks.
• Heat traveling from the sun

What is the definition of CONDUCTION?

• When heat is transferred from objects like rays of light or electromagnetically.
• a  hot liquid or air that  expands, becomes less dense, and rises or becomes more dense, and sinks.
• When heat transfers from objects that are touching.
• When heat transfers through the heater or AC in your house.