Reading Quiz - Temperature. 1. All matter is made of ___ 1. Atoms. ___ 2. Combinations of earth, wind, fire and water. ___ 3. Identical particles. ___ 4. Cells. 2. Which of the following is a temperature scale? ___ 1. Celsius. ___ 2. Fahrenheit ___ 3. Kelvin.
1. All matter is made of
___ 1. Atoms.
___ 2. Combinations of earth, wind, fire and water.
___ 3. Identical particles.
___ 4. Cells.
2. Which of the following is a temperature scale?
___ 1. Celsius.
___ 2. Fahrenheit
___ 3. Kelvin.
___ 4. All of the above.
3.Most materials will
___ 1. not be affected
___ 2. expand
___ 3. contract
1) What is the problem with 0°C = 32°F = 273.15K?
____ a) this is mathematically incorrect
____ b) this is mathematically correct
____ c) mixes units
____ d) there is no problem
2) Three different types of thermometers are used to read the temperature of a warm glass milk. The readings are
____ a) the same for all three thermometers
____ b) the three read slightly different
____ c) the three read very different temperatures
1) At what temperature is the Celsius scale the same as the Fahrenheit scale?
2) The body temperature of a healthy human is 98.6°F. Express this in degrees Celsius.
1) The height of a column of mercury in a thermometer when placed in hot water
____ a) rises immediately
____ b) descends slightly and then rises
____ c) rises and then descends slightly
____ d) descends immediately
2) Rubber has a negative coefficient of linear expansion. What happens to the size of a piece of rubber as it is warmed?
____ a) it expands
____ b) it remains the same
____ c) it contracts
____ d) it expands non-uniformly
____ e) it contracts non-uniformly
3) A bimetallic strip, consisting of metal G on the top and metal H on the bottom, is rigidly attached to a wall at the left. The coefficient of linear thermal expansion for metal G is greater than that of metal H. If the strip is uniformly heated, it will
____ a) curve upward.
____ b) curve downward.
____ c) remain horizontal, but get longer.
____ d) bend in the middle.
4) Consider a flat steel plate with a hole through its center. When the plate’s temperature is increased, the hole
____ a) expand only if it takes up more than half the plate’s surface area.
____ b) contract if it takes up less than half the plate’s surface area.
____ c) always contract.
____ d) always expand.
5) The surface water temperature on a large, deep lake is 3°C. A sensitive temperature probe is lowered several meters into the lake. What temperature will the probe read?
____ a) A temperature warmer than 3°C.
____ b) A temperature less than 3°C.
____ c) A temperature equal to 3°C.
____ d) There is not enough information to determine the answer.
1) The steel bed of a suspension bridge is 200 m long at 20°C. If the extremes of temperature to which it might be exposed are -30°C to +40°C, how much will it contract and expand?
2) Vodka that is “100 proof” is a mixture of half ethyl alcohol and half water (by volume). How much profit per liter will a merchant make if he buys vodka at $10 per liter at 0°C and sells it at $10 per liter at 25°C?
1) According to the ideal gas Law, PV = constant for a given temperature. As a result, an increase in volume corresponds to a decrease in pressure. This happens because the molecules
____ a) collide with each other more frequently.
____ b) move slower on the average.
____ c) strike the container wall less often.
____ d) transfer less energy to the walls of the container each time they strike it.
2) Which of the following is not correct?
____ a) Matter is composed of tiny particles called molecules.
____ b) The molecules are in constant motion.
____ c) All molecules have the same size and mass.
____ d) The differences between the solid, liquid, and gaseous states can be attributed to the relative freedom of motion of their respective molecules.
3) The kinetic theory of gases predicts that, at a given temperature,
____ a) all of the molecules in a gas have the same average speed.
____ b) all of the molecules in a gas have the same average energy.
____ c) light gas molecules have lower average energies than heavy gas molecules.
____ d) light gas molecules have higher average energies than heavy gas molecules.
4) The volume of a gas is held constant while its temperature is raised. The pressure the gas exerts on the walls of its container increases because
____ a) the masses of the molecules increase.
____ b) each molecule loses more kinetic energy when it strikes the wall.
____ c) the molecules are in contact with the wall for a shorter time.
____ d) the molecules have higher average speeds and strike the wall more often.
5) The temperature of a gas is held constant while its volume is reduced. The pressure the gas exerts on the walls of its container increases because its molecules
____ a) strike the container walls more often.
____ b) strike the container walls with higher speeds.
____ c) strike the container walls with greater force.
____ d) have more energy.
1) What is the average translational kinetic energy of molecules in a gas at 37°C?
2) Since refers to the average of the square of the velocity, the square-root of this quantity is called the root-mean-square speed or . If a gas is at 0°C, to what temperature must it be raised to double the rms speed of its molecules?
3) Why does the moon have no atmosphere?