Do Now Quiz 2 (conduction)

Particles in a ________ vibrate back and forth in place.

• gas

• solid

• liquid

____________ between particles in a solid, liquid, and/or gas can transfer kinetic energy (KE or motion energy) from one particle to another.

• Connections

• Collisions

• Introductions

• Vibrations

• Interactions

The more particles in a sample of matter that are in contact with another sample of matter the greater the amount of particle KE is transferred from the cooler piece of matter to the warmer pieces of matter over time.

• true

• false

The more particles an object is made of, the more energy must leave or enter the system in order to change the ___________ of that object.

• shape

• volume

• temperature

• color

Metals are great thermal _____

• insulators

• conductors

• resistors

• absorbers

• reflectors

Heat is transferred through conductors _____ than through other objects.

• faster

• slower

• equally

• not at all

Heat is transferred from _____

• colder objects to warmer objects

• warmer objects to colder objects

• objects with the same temperature

• objects in a vacuum

• objects with no thermal energy

So although the aluminum block felt colder in your hand than the plastic block, the ice melted on the aluminum block faster because ________.

• The warmth was NOT able to transfer through the aluminum block faster than through the plastic block.

• The warmth WAS able to transfer through the aluminum block faster than through the plastic block.

• The aluminum block absorbed more moisture from the air.

• The aluminum block was initially warmer than the plastic block.

Heat, also called thermal energy, can be transmitted through direct contact. This method is called ____.

• conduction

• heat transfer

• insulation

• kinetic transmission

• radiation

What does it mean if a material is a thermal conductor?

• it allows heat to pass through easily

• it resists the transfer of heat