Do Now Task

Match the following symbols to what they represent

• T_C

• temperature in Celsius

• Q

• Heat

• T

• degrees

• T_F

• temperature in Kelvin

• °

• temperature in Fahrenheit

Heat is ​ (a)   transferred between objects because of a difference in their ​ (b)   . It moves from an object with ​ (c)   energy to ​ (d)   energy.

• energy
• temperatures
• higher
• lower

What is the steam/boiling point of water?

• 100° Celsius

• 0° Celsius

• 32° Celsius

• 212° Celsius

Tags

112.39.c.6.E

Temperatures of objects in thermal equilibrium

• cannot be determined without more information

• are always the temperature of the hottest objects

• are always the temperature of the coolest objects

• are always between the temperatures of the two objects

Thermal equilibrium occurs when

• two objects in contact have identical temperatures

• two objects in contact have different temperatures

• two objects are separately heated to different temperatures

• two objects are separately cooled to different temperatures

When a popsicle melts, the particles in the popsicle _____.

• gain thermal energy and speed up

• there are no particles in popsicles

• lose thermal energy and slow down

• stay the same

The energy transferred between object's at different temperatures

• heat
• thermal energy
• radiation
• convection

Thermal energy that flows between an object at a higher temperature to an object at a lower temperature

• heat
• thermal expansion
• insulation
• specific heat

Heat transfer occurs:

• in many directions
• both from warm objects to colder ones and from cold objects to warmer ones
• only from warm objects to colder ones
• only from cold objects to warmer ones

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.