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Ch. 15 & 16

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Temperature, Heat, and Expansion. & Heat Transfer.
Winston Schultz
Quiz by Winston Schultz, updated more than 1 year ago
Winston Schultz
Created by Winston Schultz about 9 years ago
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Resource summary

Question 1

Question
Temperature is most closely related to molecular
Answer
  • Kinetic energy.
  • electrical energy.
  • potential energy.
  • mechanical energy in general.

Question 2

Question
Which temperature scales have equal sized degrees?
Answer
  • Celsius and Kelvin.
  • Fahrenheit and Kelvin.
  • Fahrenheit and Celsius.
  • none of the above.

Question 3

Question
Which temperature scale has the smallest sized degrees?
Answer
  • Celsius
  • Farenheit
  • Kelvin
  • none of the above

Question 4

Question
A temperature difference of 10 Celsius degrees is also equal to a temperature difference of 10 on the
Answer
  • Kelvin Scale.
  • Fahrenheit Scale.
  • both of these
  • neither of these

Question 5

Question
Room temperature on the Kelvin scale is about
Answer
  • 200 K.
  • 400 K.
  • more thank 400 K.
  • 100 K.
  • 300 K.

Question 6

Question
When you touch a cold piece of ice with your finger, energy flows
Answer
  • from your finger to the ice.
  • from the ice to your finger.
  • actually, both ways.

Question 7

Question
When you touch a hot potato with your finger, energy flows
Answer
  • from the potato to your finger.
  • from your finger to the potato.
  • actually, both ways.

Question 8

Question
Heat energy travels from an object with a high
Answer
  • temperature to an object with a lower temperature.
  • internal energy to an object with a lower internal energy.
  • both of the above
  • none of the above

Question 9

Question
Heat energy is measured in units of
Answer
  • calories.
  • joules.
  • both of these.
  • neither of these.

Question 10

Question
The amount of heat needed to raise the temperature of 1 gram of water by 1°C is
Answer
  • 4.19 calories.
  • 4.19 joules.
  • 4.19 Calories.
  • none of the above

Question 11

Question
Which unit represents the most energy?
Answer
  • joule
  • calorie
  • Calorie
  • all the same

Question 12

Question
Pour a liter of water at 40°C into a liter of water at 20°C and the final temperature of the two becomes
Answer
  • less than 30°C.
  • at or about 30°C.
  • more than 30°C.

Question 13

Question
A substance with a high thermal inertia (resistance to temperature change) has a high
Answer
  • specific heat capacity.
  • temperature, in many cases.
  • heat conductivity.
  • energy content.

Question 14

Question
Aluminum has a higher specific heat capacity than iron. This means that for equal masses of aluminum and iron, the metal that heats more quickly when the same amount of heat is applied is
Answer
  • aluminum.
  • iron.
  • need more information

Question 15

Question
Tomatoes have a higher specific heat capacity than dough. This means that when you bite into a hot pizza
Answer
  • the dough feels hotter than the tomato sauce.
  • since sauce and dough are at the same temperature, neither feels hotter.
  • the tomato sauce feels hotter than the dough.

Question 16

Question
A substance that cools down faster than others has a
Answer
  • low specific heat capacity.
  • high specific heat capacity.
  • either of these
  • neither of these

Question 17

Question
The fact that desert sand is very hot in the day and very cold at night is evidence that the specific heat capacity of sand is relatively
Answer
  • practically absent.
  • low.
  • high.

Question 18

Question
If the specific heat capacity of water were lower than it is, a nice hot bath would be a
Answer
  • longer experience.
  • shorter experience.
  • same regardless of water's specific heat capacity.

Question 19

Question
When most substances are heated, molecules inside move faster and take up more space, resulting in thermal
Answer
  • contraction.
  • heat.
  • bending.
  • expansion.

Question 20

Question
When an iron ring is heated, the hole becomes
Answer
  • larger.
  • neither smaller nor larger.
  • either smaller or larger, depending on the ring thickness.
  • smaller.

Question 21

Question
As a piece of metal with a hole in it cools, the diameter of the hole
Answer
  • decreases.
  • increases.
  • remains the same.

Question 22

Question
Metals are good conductors of both heat and electricity due to
Answer
  • both transferring energy easily.
  • looseness of outer electrons in metal atoms.
  • similar thermal and electrical conductive properties.
  • relatively high densities of metals.
  • high elasticity of metals.

Question 23

Question
A good heat conductor is
Answer
  • a poor insulator.
  • a good insulator.
  • neither of these.

Question 24

Question
Which of these are good conductors?
Answer
  • wood.
  • feathers.
  • snow.
  • all of the above.
  • none of the above.

Question 25

Question
On a cold day your feet feel warmer on a rug than on a tile floor because a rug
Answer
  • for the same mass has more internal energy than tile.
  • is usually warmer than tile.
  • is a poorer conductor.
  • all of the above
  • none of the above

Question 26

Question
When you touch a nail stuck in ice, energy flows from
Answer
  • the ice to your hand.
  • your hand to the ice.
  • both of these
  • neither of these

Question 27

Question
If a volume of air is warmed, it expands and tends to
Answer
  • warm.
  • cool.
  • neither of these

Question 28

Question
When a volume of air is compressed, air temperature
Answer
  • increases.
  • decreases.
  • neither of these

Question 29

Question
The form of heat transfer that doesn't depend on a medium is
Answer
  • convection.
  • conduction.
  • radiation.
  • all of the above.

Question 30

Question
The higher the temperature of an object, the
Answer
  • makes no difference in the wavelengths it radiates
  • shorter the wavelengths it radiates.
  • longer the wavelengths it radiates.

Question 31

Question
If a pizza radiates more energy than it absorbs, its temperature
Answer
  • decreases.
  • increases.
  • is unaffected.
  • none of the above

Question 32

Question
Glass in a florist's greenhouse acts as a one-way valve in that it
Answer
  • lets light energy flow only in one direction.
  • is transparent only to lower-frequency waves.
  • cuts off unwanted radiation.
  • allows sun's light waves in and blocks waves with longer wavelength to exit.
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