Unit 3 review (P)

A measure of the average amount of kinetic energy of the particles in the object.

• energy
• expansion
• temperature
• heat

The faster an object moves, the ________ kinetic energy it has. 

• more
• less
• none of the above
• all of the above 

Warm air is __________ dense than cold air and rises creating convection currents.

• more
• less

Thermal energy always moves from ___________ to __________.

• Hot to Hot
• Cold to hot
• Warmer to cooler
• Cooler to warmer

The transfer of thermal energy between objects of different temperatures is called...

• temperature
• heat 
• none of these

What is the BEST example of a conductor? 

• A wooden block
• A ceramic mug
• A glass cup
• A metal bowl

An insulator . . .

• Allows a lot of heat to escape
• Makes the temperature of an object rise
• Moves heat from one place to another
• Traps heat inside an object

When thermal energy is added to a substance, the substance's particles move: 

• More rapidly at an increased distance from each other
• More rapidly with less distance between each other
• More slowly with a greater distance between each other
• More slowly with a reduced distance be

The faster molecules move, 

• the higher the temperature
• the less temperature
• the same temperature
• I don't know

How does heat transfer when you hold an ice cube in your hand?

• from the cold ice cube to your warm hand

• the cold ice cube makes your hand cold

• from your warm hand to the cold ice cube

• very carefully