Thermal energy

Heat moves easily through materials called ____

• Conductors
• Insulators

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Conduction can only occur between two objects when –

• one object is less dense than the other.
• both objects are in physical contact with each other.
• one of the objects is made of a metal.
• both objects are exactly the same temperature.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What makes a conductor "good"

• everything is a good conductor

• electrons are touching and can transfer heat

• electrons can't move

• electrons are free to move

Which of the following are kinds of heat transfer.

• Conduction
• Convection
• Radiation
• All of the above

Tags

NGSS.MS-PS1-4

Heat will always transfer from the ___________ object to the ________ object.

• The hottest object to the coolest object.

• The coolest object to the hottest object.

• The solid object to the liquid object.

• The liquid object to the solid object.

Tags

NGSS.MS-PS1-4

Jenny poured some hot chocolate into a cup and stirred it with a metal spoon.  She noticed the spoon was really warm.  What is the best explanation for this?

• The spoon is a conductor.
• The spoon reflects heat.
• The spoon is an insulator.
• She touched the spoon first and waited to touch the cup.

Tags

NGSS.MS-PS1-4

Radiation is heat transfer by-

• Touch
• Circles
• Waves

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

When the 2nd story of a house is warmer than the 1st floor of a house is heat transfer through 

• conduction
• convection
• radiation
• thermal equilibrium

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

The sun warming your skin is an example of heat transfer through 

• conduction
• convection
• radiation
• thermal electricity

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

What  is the formula to calculate heat energy required to raise the temperature of any substance?

• Q=mc∆t
• Q=mc
• Q= ½mv
• m=QC

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4