4to parcial teoria

True or false: Heat moves from the cooler object to a warmer object

• True
• False

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

Joules and calories are units of measurement for __________________.

• heat

• insulators

• conductors

• thermometers

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

What is 0^oC in Kelvin?

• 110 K
• 100 K
• 273 K
• 210 K

the symbol for specific latent heat is

• c

• Q

• m

The first law of thermodynamics states that ...

• increase in internal energy = heat absorbed by system + work on system

• increase in internal energy = heat absorbed by system + work by system

• decrease in internal energy = heat absorbed by system + work on system

• decrease in internal energy = heat absorbed by system + work by system

What is internal energy

• the average kinetic energy of the particles

• heat energy

• the sum of the kinetic and potential energy

• the average potential energy

What unit do you use to measure Thermal Energy?

• J/Kg ºC
• Kg
• ºC
• J