PhysicsC Review - Quiz 16.1-16.2

What is the Specific Heat Equation?

• Q= m/c

• Q= m x c x t

• T = Q + c

• Q = m x c / t

In what direction does heat flow?

• hot to cold

• cold to hot

• cold to cold

• hot to cold to hot

What two variables affect the thermal energy of an object?

• mass, temperature

• temperature, specific heat

• specific heat, mass

• temperature, thermal energy

What is the first law of thermodynamics?

• heat can flow from colder to warmer objects

• absolute zero cannot be reached

• energy is conserved

What is the second law of thermodynamics?

• heat can flow from a colder place to a warmer place only if work is done

• absolute zero cannot be reached

• energy is conserved

What is the third law of thermodynamics?

• heat can flow from a colder place to a warmer place if work is done

• absolute zero cannot be reached

• energy is conserved

Why is conduction in gases slower than conduction in liquids and solids?

• particles move slower

• particles collide more often

• they are better conductors

• particles collide less often

What happens to radiation from an object as its temperature increases?

• rate increases

• rate decreases

• rate stays the same

why are metals generally good conductors?

• because some of the electrons in metals are free to move about

• because the protons in metals move about freely

• because the bonds between the elements are stronger

• because they dont touch each other

How are conduction, convection, and radiation similar to one another?

• they all tend to transfer thermal energy from cold to hot

• they tend to transfer thermal energy from hot to cold

• their not similar at all

• they all start with the same letter