Temperature, Heat, & Specific Heat

The molecules of a liquid vs. a solid....

• Move slower in a liquid.
• Move slower in a solid.

Tags

NGSS.MS-PS1-4

If you place some Gatorade in a cooler with ice...

• It's particles will speed up.
• It's particles will slow down.

Tags

NGSS.MS-PS1-4

A measure of the average kinetic energy of the individual particles in an object is called:

• thermal energy
• conduction
• convection
• temperature

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

To turn a liquid into a gas, you _____ energy.

• Add
• Remove

Tags

NGSS.MS-PS1-4

Observe the diagram. Which statement is true about the kinetic energy of the molecules in the containers?

• The molecules are moving faster in Diagram A

• The molecules are moving slower in Diagram A

• The molecules are moving at the same rate in both diagrams

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Which of the following containers of sand has atoms/molecules with the greatest average kinetic energy?  

• 1 kg at 20^oC
• 2 kg at 20^oC
• 4 kg at 20^oC
• none has a greater amount because all have the same average kinetic energy

Tags

NGSS.MS-PS3-1

What would be the effect on the particles if more heat is supplied to the system?

• They would slow down
• They would stop moving
• They would speed up
• There would be no effect

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-5

There are four cups of hot cocoa. The cup sizes are shown. The temperature of the cocoa in each cup is 25 degrees celsius. Which cup has the MOST thermal energy?

• Large cup (Trenta)
• Small cup (Tall)
• Venti
• All three are the same temperature so they have same thermal energy

Tags

NGSS.MS-PS3-4

Which description defines heat?

• total thermal energy of an object or substance

• change in the temperature of a substance in degrees Celsius

• energy transferred between objects at different temperatures

• average kinetic energy of the particles that make up a substance

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-5

Water has a specific heat of 4184 J/KgºC.  Wood has a specific heat of 1760 J/KgºC.  What material needs more energy to raise the temperature 1ºC

• Wood
• Water
• Both are the same

Tags

NGSS.MS-PS3-4