4079707
Descripción
Test por Winston Schultz, actualizado hace más de 1 año
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Creado por Winston Schultz
hace alrededor de 9 años
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Pregunta 1
Pregunta
Temperature is most closely related to molecular
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Kinetic energy.
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electrical energy.
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potential energy.
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mechanical energy in general.
Pregunta 2
Pregunta
Which temperature scales have equal sized degrees?
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Celsius and Kelvin.
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Fahrenheit and Kelvin.
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Fahrenheit and Celsius.
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none of the above.
Pregunta 3
Pregunta
Which temperature scale has the smallest sized degrees?
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Celsius
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Farenheit
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Kelvin
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none of the above
Pregunta 4
Pregunta
A temperature difference of 10 Celsius degrees is also equal to a temperature difference of 10 on the
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Kelvin Scale.
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Fahrenheit Scale.
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both of these
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neither of these
Pregunta 5
Pregunta
Room temperature on the Kelvin scale is about
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200 K.
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400 K.
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more thank 400 K.
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100 K.
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300 K.
Pregunta 6
Pregunta
When you touch a cold piece of ice with your finger, energy flows
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from your finger to the ice.
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from the ice to your finger.
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actually, both ways.
Pregunta 7
Pregunta
When you touch a hot potato with your finger, energy flows
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from the potato to your finger.
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from your finger to the potato.
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actually, both ways.
Pregunta 8
Pregunta
Heat energy travels from an object with a high
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temperature to an object with a lower temperature.
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internal energy to an object with a lower internal energy.
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both of the above
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none of the above
Pregunta 9
Pregunta
Heat energy is measured in units of
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calories.
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joules.
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both of these.
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neither of these.
Pregunta 10
Pregunta
The amount of heat needed to raise the temperature of 1 gram of water by 1°C is
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4.19 calories.
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4.19 joules.
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4.19 Calories.
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none of the above
Pregunta 11
Pregunta
Which unit represents the most energy?
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joule
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calorie
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Calorie
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all the same
Pregunta 12
Pregunta
Pour a liter of water at 40°C into a liter of water at 20°C and the final temperature of the two becomes
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less than 30°C.
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at or about 30°C.
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more than 30°C.
Pregunta 13
Pregunta
A substance with a high thermal inertia (resistance to temperature change) has a high
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specific heat capacity.
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temperature, in many cases.
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heat conductivity.
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energy content.
Pregunta 14
Pregunta
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
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aluminum.
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iron.
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need more information
Pregunta 15
Pregunta
Tomatoes have a higher specific heat capacity than dough. This means that when you bite into a hot pizza
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the dough feels hotter than the tomato sauce.
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since sauce and dough are at the same temperature, neither feels hotter.
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the tomato sauce feels hotter than the dough.
Pregunta 16
Pregunta
A substance that cools down faster than others has a
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low specific heat capacity.
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high specific heat capacity.
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either of these
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neither of these
Pregunta 17
Pregunta
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
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practically absent.
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low.
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high.
Pregunta 18
Pregunta
If the specific heat capacity of water were lower than it is, a nice hot bath would be a
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longer experience.
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shorter experience.
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same regardless of water's specific heat capacity.
Pregunta 19
Pregunta
When most substances are heated, molecules inside move faster and take up more space, resulting in thermal
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contraction.
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heat.
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bending.
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expansion.
Pregunta 20
Pregunta
When an iron ring is heated, the hole becomes
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larger.
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neither smaller nor larger.
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either smaller or larger, depending on the ring thickness.
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smaller.
Pregunta 21
Pregunta
As a piece of metal with a hole in it cools, the diameter of the hole
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decreases.
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increases.
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remains the same.
Pregunta 22
Pregunta
Metals are good conductors of both heat and electricity due to
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both transferring energy easily.
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looseness of outer electrons in metal atoms.
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similar thermal and electrical conductive properties.
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relatively high densities of metals.
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high elasticity of metals.
Pregunta 23
Pregunta
A good heat conductor is
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a poor insulator.
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a good insulator.
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neither of these.
Pregunta 24
Pregunta
Which of these are good conductors?
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wood.
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feathers.
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snow.
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all of the above.
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none of the above.
Pregunta 25
Pregunta
On a cold day your feet feel warmer on a rug than on a tile floor because a rug
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for the same mass has more internal energy than tile.
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is usually warmer than tile.
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is a poorer conductor.
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all of the above
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none of the above
Pregunta 26
Pregunta
When you touch a nail stuck in ice, energy flows from
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the ice to your hand.
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your hand to the ice.
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both of these
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neither of these
Pregunta 27
Pregunta
If a volume of air is warmed, it expands and tends to
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warm.
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cool.
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neither of these
Pregunta 28
Pregunta
When a volume of air is compressed, air temperature
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increases.
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decreases.
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neither of these
Pregunta 29
Pregunta
The form of heat transfer that doesn't depend on a medium is
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convection.
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conduction.
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radiation.
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all of the above.
Pregunta 30
Pregunta
The higher the temperature of an object, the
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makes no difference in the wavelengths it radiates
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shorter the wavelengths it radiates.
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longer the wavelengths it radiates.
Pregunta 31
Pregunta
If a pizza radiates more energy than it absorbs, its temperature
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decreases.
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increases.
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is unaffected.
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none of the above
Pregunta 32
Pregunta
Glass in a florist's greenhouse acts as a one-way valve in that it
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lets light energy flow only in one direction.
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is transparent only to lower-frequency waves.
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cuts off unwanted radiation.
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allows sun's light waves in and blocks waves with longer wavelength to exit.
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