Temperature and thermal energy

Which direction is heat flowing in the picture?

• from the hand to the ice
• from the ice to the hand
• heat is not being transferred
• there is no way to tell

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-5

When temperature __, the average kinetic energy of the particles decreases

• decreases
• increases

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What is temperature?

• How hot something is
• How cold something is
• The average kinetic energy of the atoms in an object

Tags

NGSS.HS-PS1-5

NGSS.HS-PS3-4

Which description best matches this particle model?

• Closely packed and can't move a lot. 
• Particles are close together but can move a little. 
• Particles have lots of energy and can move around. 

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Heat is the movement of ______.

• radiation

• thermal energy

• cold

• fire

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-4

As the heat moves what happens to the molecules?

• they begin to move faster

• they begin to move slower

• they stop moving

• they fly off the object

Tags

NGSS.MS-PS1-4

Heat transfers from an area of _____ to ___ temperature.

• high to low

• low to high

• high to high

• low to low

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Exothermic reactions...

• Absorb energy
• Release energy
• Release Color
• Absorb Color

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

NGSS.MS-PS3-4

In an endothermic reaction, heat is ...

• taken in or absorbed
• given out or released 

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

_____ reactions usually feel hot!

• endothermic

• exothermic

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4