Heat, Temperature & Thermal Energy

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

• heat
• temperature
• motion
• momentum

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NGSS.MS-PS1-4

NGSS.MS-PS3-4

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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NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

A measure of how much thermal energy an object has

• thermal energy

• conduction

• convection

• temperature

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NGSS.MS-PS1-4

NGSS.MS-PS3-4

Energy that moves particles of matter is 

• temperature
• thermal energy
• heat
• friction

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NGSS.MS-PS1-4

NGSS.MS-PS3-4

While rubbing your hands together on a cold day, you use friction to transform

• thermal energy into nuclear energy

• nuclear energy into electrical energy

• mechanical energy into thermal energy

• mechanical energy into electrical

The measure of average kinetic energy of all the particles within an object is called ____________. 

• temperature
• conduction
• radiation
• heat 

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

At higher temperatures

• particles in an object have less energy
• particles in an object move faster
• a gas contracts

The speed of the molecules determines the _____.

• volume
• density
• pressure
• temperature

Particles in a ______________________ move quickly and are far apart.

• gas

• solid

• liquid