Physics 1 Practice Questions with 100% Correct
Answers
Functional Definition
Defining based on observable or measurable properties.
Theoretical/Fundamental Definition
based on explanatory principles.
Suppose object C is in thermal equilibrium with object A and with object B. The zeroth law of
thermodynamics states:
That A is in thermal equilibrium with B.
If heat is flowing from a table to a block of ice moving across the table, what must be true.
The ice is cooler than the table.
An interval of one Celsius degree is equivalent to an interval of:
One kelvin
A temperature chance from 15 degrees C to 35 degrees C corresponds to what incremental
change in F?
36
A substance is heated from 15 degrees C to 35 degrees C. What would the same incremental
change be when registered in kelvins
20
Why do vapor bubbles get larger in boiling water as they approach the surface?
The pressure in the water decreases as the bubble moves toward the surface.
, The pressure in a constant-volume gas thermometer extrapolates to zero at what
temperature
0 K.
An ideal gas is confined to a container with adjustable volume. The pressure and mole
number are constant. By what factor will volume change if absolute temperature triples?
3.0
The temperature of a quantity of ideal gas in a sealed container is increased from 0 C to 273
C. What happens to the speed of the molecules with average kinetic energy of the gas as a
result of this temperature increase?
It increases but it less than doubles.
The noble gases, listed by increasing molecular weight, are He, Ne, Ar, Kr, Xe and Rn. If
samples of 1 mole each of these gases are placed in separate containers and heated to 300K,
which gas has the greatest internal energy and the molecules of which gas have the highest
average speed?
All the gases have the same internal energy and He has the greatest speed.
Boltzmann's constant, kB may be derived as a function of R, the universal gas constant, and
NA, Avogadro's number. Which expresses the value of kB?
R/NA
If the temperature of an ideal gas contained in a box is increased:
the average speed of the molecules in the box will be increased.
How many atoms are present in a sample of pure iron with a mass of 300g?
3.2 x 10^24
For an ideal gas of a given mass, if the pressure remains the same and the volume increases:
the average kinetic energy of the molecule increases.
Answers
Functional Definition
Defining based on observable or measurable properties.
Theoretical/Fundamental Definition
based on explanatory principles.
Suppose object C is in thermal equilibrium with object A and with object B. The zeroth law of
thermodynamics states:
That A is in thermal equilibrium with B.
If heat is flowing from a table to a block of ice moving across the table, what must be true.
The ice is cooler than the table.
An interval of one Celsius degree is equivalent to an interval of:
One kelvin
A temperature chance from 15 degrees C to 35 degrees C corresponds to what incremental
change in F?
36
A substance is heated from 15 degrees C to 35 degrees C. What would the same incremental
change be when registered in kelvins
20
Why do vapor bubbles get larger in boiling water as they approach the surface?
The pressure in the water decreases as the bubble moves toward the surface.
, The pressure in a constant-volume gas thermometer extrapolates to zero at what
temperature
0 K.
An ideal gas is confined to a container with adjustable volume. The pressure and mole
number are constant. By what factor will volume change if absolute temperature triples?
3.0
The temperature of a quantity of ideal gas in a sealed container is increased from 0 C to 273
C. What happens to the speed of the molecules with average kinetic energy of the gas as a
result of this temperature increase?
It increases but it less than doubles.
The noble gases, listed by increasing molecular weight, are He, Ne, Ar, Kr, Xe and Rn. If
samples of 1 mole each of these gases are placed in separate containers and heated to 300K,
which gas has the greatest internal energy and the molecules of which gas have the highest
average speed?
All the gases have the same internal energy and He has the greatest speed.
Boltzmann's constant, kB may be derived as a function of R, the universal gas constant, and
NA, Avogadro's number. Which expresses the value of kB?
R/NA
If the temperature of an ideal gas contained in a box is increased:
the average speed of the molecules in the box will be increased.
How many atoms are present in a sample of pure iron with a mass of 300g?
3.2 x 10^24
For an ideal gas of a given mass, if the pressure remains the same and the volume increases:
the average kinetic energy of the molecule increases.
