Thermal Energy Heat Temperature

of water. specific heat of water is 4.18 J/g°C.  temperature changes from 25° C to 20° C, how much heat energy (Q) moves from the water to the surroundings?

• 418 Joules

• 209 J

• 83 J

• 4.18 J

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

The specific heat(c) of copper is 0.39 J/g °C. What is the temperature change(∆t) when 100 Joules of heat(Q) is added to 20 grams of copper?

• 12.82 °C

• 24.12°C

• 351 °C

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

A 15.75-g piece of iron absorbs 1086.75 joules of heat energy, and its temperature changes from 25°C to 175°C. Calculate the specific heat capacity of iron.

• 0.46 J/g^oC

• 1.654 J/g^oC

• 2,567,446.875 J/g^oC

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

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

When you touch something that feels cold, 

• heat from your hand moves into the cold substance.

• coldness moves from the cold substance into your hand.

• it melts.

• it freezes.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-4

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-PS3-1

NGSS.MS-PS3-5

What unit do you use to measure Thermal Energy?

• J/Kg ºC

• Kg

• ºC

• J

Temperature____ as average kinetic energy decreases.

• increases

• decreases

• stays the same

• all of the above

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

The energy transferred between object's at different temperatures

• heat

• thermal energy

• radiation

• convection

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

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)

• Medium cup (Venti)

• All three are the same temperature so they have the same thermal energy

Tags

NGSS.MS-PS3-4