Temperature, heat and thermal energy

The movement of thermal energy from a warmer object to a cooler object is called:

• heat
• temperature
• motion
• momentum

Heat transfer occurs:

• in many directions
• both from warm objects to colder ones and from cold objects to warmer ones
• only from warm objects to colder ones
• only from cold objects to warmer ones

A measure of the average kinetic energy of the individual particles in an object is called:

• thermal energy
• conduction
• convection
• temperature

When you touch something that feels cold, 

• heat from your hand moves into the cold substance.
• coldness moves from the cold substance into your hand.
• it melts.
• it freezes.

Why does a diver wear a wet suit?

• To keep in thermal energy.
• To keep from getting cuts.
• To keep from sinking.
• To keep out cold.

The temperature of a substance increases as___.

• the substance expands
• the average kinetic energy of its particles increases
• the substance's volume increases
• the substance's mass increases

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

When a popsicle melts, the particles in the popsicle _____.

• gain thermal energy and speed up

• there are no particles in popsicles

• lose thermal energy and slow down

• stay the same

The Law of Conservation of Energy states:

• Energy can created or destroyed but not transformed 
• Energy cannot be created or destroyed, it can only transformed
• Energy can't be created, destroyed or transformed

If the particles of two substances have the same average kinetic energy, then___.

• the specific heats of the substances are identical 
• the particles will not react chemically
• the substances have equal thermal energies
• the substances have equal temperatures