Heat2

If two cups of hot chocolate, one at 50°C and the other at 60°C, are poured together in a large container, will the final temperature of the double batch be

• less than 50

• between 50 and 60

• greater than 60

Materials such as air, wood, and rubber that do not allow heat to pass through them easily are called ____________.

• Conductors

• Insulators

• Solar collectors

• Fluids

Entropy can be considered as a measure of the _________ of useful energy

• decrease

• spreading out

• disorder

• availability

This states that it is impossible to achieve a temperature of absolute zero.

• 0^th law of thermodynamics

• 1^st law of thermodynamics

• 2^nd law of thermodynamics

• 3^rd law of thermodynamics

This states that heat will always flow from hot objects to cold objects, efficiency is

• 0^th law of thermodynamics

• 1^st law of thermodynamics

• 2^nd law of thermodynamics

• 3^rd law of thermodynamics

This states that energy is never created or destroyed: heat lost by an object is gained by another.

• 0^th law of thermodynamics

• 1^st law of thermodynamics

• 2^nd law of thermodynamics

• 3^rd law of thermodynamics

1. This states that when two objects are in contact, heat will flow until they are in thermal

equilibrium.


• 0^th law of thermodynamics

• 1^st law of thermodynamics

• 2^nd law of thermodynamics

• 3^rd law of thermodynamics

Which of the following is the best conductor of heat?

• wood

• water

• aluminum

• plastic

What is the causes heat to flow?


• temperature

• thermal energy

• temperature difference

• coldness

When things are hot molecules are moving...

• Fast
• Slow
• They are not moving
• They are moving by not fast or slow