Ramsay Test Thermodynamics 5

Question 1

What happens to most substances when they are heated?

Accepted Answer

They expand

Answer

They contract

Answer

They lose mass

Answer

They solidify

Question 2

In which direction does heat naturally flow between two objects in contact?

Accepted Answer

From hot to cold

Answer

From cold to hot

Answer

From large to small

Answer

It does not flow

Question 3

What is the energy associated with the total molecular motion of a substance called?

Accepted Answer

Internal energy

Answer

Potential energy

Answer

Kinetic friction

Answer

Enthalpy of formation

Question 4

A surface that is a good emitter of radiant heat is typically what color?

Accepted Answer

Dull black

Answer

Shiny silver

Answer

Bright white

Answer

Polished gold

Question 5

What is enthalpy a measure of in a thermodynamic system?

Accepted Answer

Total heat content at constant pressure

Answer

Random molecular disorder

Answer

Rate of heat transfer

Answer

Mechanical work only

Question 6

When water vapor in air turns to liquid on a cold surface, the process is called what?

Accepted Answer

Condensation

Answer

Evaporation

Answer

Sublimation

Answer

Fusion

Question 7

Why do two metals in a bimetallic strip bend when heated?

Accepted Answer

They expand at different rates

Answer

They melt at the same point

Answer

They conduct equally

Answer

They lose mass unevenly