heat and temperature

Convert: 253 °C to K

• 526

• 625

• 0

• 186

Absolute zero

• indicates the complete absence of heat/energy

• is the coldest possible temperature

• is when all molecular motion stops

• All of the above

As the temperature of a substance rises, the average kinetic energy of the particles making up the substance

• increases

• decreases

• remains the same

When are two objects consider to be at thermal equilibrium

• when one object is hotter than the other

• when on object is colder than the other

• when one object is at the same temperature as the other

 The liquid in the thermometer rises when it is placed in the hot water because

• it gains heat from the hot water and expands

• loses heat from the hot water and contracts

• the surrounding air is too warm

• the liquid is boiling

How much energy is required to increase the temperature of 1g of water 1°C?

【specific heat capacity of water = 4200 J/kg°C】

• 2260 J

• 334 J

• 100 J

• 4.20 J

The specific heat of aluminum is 900 J/kg°C.  How much heat(Q) is released when a 10 g piece of aluminum foil is taken out of the oven and cools from 100° to 50°?

• 450 J

• 900 J

• 45 J

• 90 J

What is the meaning of temperature?

• The amount of water in a container

• The size of a shadow.

• The measure of how cold or hot something is.

• The amount of heat contained

In nature, heat always flows from a:

• cold object to a warm object.

• small object to a big object.

• warm object to a cold object.

• large object to a small object

Copper, Stainless Steel, Carbon Steel, and Zinc were all heated using the same thermal energy.  What material would be the coolest after being heated?

• Copper

• Carbon Steel

• Zinc

• Stainless Steel