Mass and Thermal Energy

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

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

• thermal energy
• conduction
• convection
• temperature

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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.

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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

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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

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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

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The 2 factors that determine an objects thermal energy

• weight

• mass

• temperature

• total kinetic energy

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The more mass an object has the_____________ thermal energy it has.

• more

• less

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

• heat
• temperature
• motion
• momentum

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Thermal Energy is the sum of the potential and kinetic energy of ALL the particles in an object.

• True

• False

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