Heat and Thermodynamics

One calorie is equal to

• the amount of energy required to change the temperature of one gram of water by one degree Celsius.

• 4.186 Joules

• 0.001 kilocalories

• all of the above

An ideal calorimeter is one where

• all calories are converted into heat

• calories are measured carefully

• no heat leaks out of the container

• temperature can be measured

How does the thermal energy flow in a glass of ice tea?

• from the ice to the tea

• from the tea to the ice

• there is no flow

• it looks good - now I am thirsty

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Burning your hand on a hot pan

• Conduction

• Convection

• Radiation

Tags

NGSS.MS-PS3-3

Warming hand over a radiator.

• Conduction

• Convection

• Radiation

Tags

NGSS.MS-PS3-4

The Law of Conservation of Energy states:

• Energy can created or destroyed but not transformed 

• Energy cannot be created or destroyed, it can only transformed

• Energy can't be created, destroyed or transformed

Tags

NGSS.MS-PS3-5

Which example below is an example of convection?

• Standing on a hot metal bridge

• The attic is warmer than the basement

• The Sun heating the Earth

• Touching hot sand with your feet

Tags

NGSS.MS-ESS2-6

When you strike a match and light some logs on fire, what is the energy transformation that is taking place?

• heat to kinetic to potiential

• kinetic to thermal to light

• chemical to light to thermal

• light to chemical to thermal

Tags

NGSS.MS-PS1-2

NGSS.MS-PS3-4

When does thermal energy transfer end?

• it never ends

• both reach the same temperature

• when it starts boiling

• when you measure them

Tags

NGSS.MS-PS1-4

The way in which heat moves through liquids and gases 

• convection 

• conduction 

• conductor

• radiator 

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4