Temperature Quiz on Ice and Water
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Questions and Answers

What is the most likely temperature of ice cubes stored in a refrigerator's freezer compartment?

  • 0°C
  • –10°C (correct)
  • 5° C
  • It depends on the size of the ice cubes.

    • Ken puts four ice cubes in water and leaves two on the counter. After the ice melts, what is the most likely temperature of the water?

  • –10°C
  • 0°C (correct)
  • 5°C
  • 10°C

    • The ice cubes Ken left on the counter have almost melted and are lying in a puddle of water. What is the ice's most likely temperature?

  • 0°C (correct)
  • –10°C
  • 10°C
  • 5° C

    • If a can of cola is at 7°C in the refrigerator, what is the most likely temperature of a plastic bottle of cola from the same refrigerator?

    <p>They are both equal to 7°C. (A)</p> Signup and view all the answers

    What is the most likely temperature of water that is boiling rapidly in a kettle?

    <p>98°C (B)</p> Signup and view all the answers

    If water in a kettle continues to boil for five minutes, what is its most likely temperature?

    <p>98°C (D)</p> Signup and view all the answers

    What is the temperature of the steam above boiling water in a kettle?

    <p>98°C (C)</p> Signup and view all the answers

    Lee mixes two cups of water at 40°C with one cup of water at 10°C. What is the most likely temperature of the mixture?

    <p>30°C (A)</p> Signup and view all the answers

    Ned places a cola can on the countertop. He notices the countertop beneath the can feels colder. Which of the following statements best explains this?

    <p>Sue says: “Some heat has been transferred from the counter to the cola.” (D)</p> Signup and view all the answers

    Pam puts 100 grams of ice at 0°C and 100 grams of water at 0°C into a freezer. Which one will eventually lose the greatest amount of heat?

    <p>Ben says: “The 100 grams of water.” (C)</p> Signup and view all the answers

    Why does Jim think metal feels colder than plastic?

    <p>Metal is naturally colder. (C)</p> Signup and view all the answers

    What does Kip say about the temperature of metal and plastic?

    <p>They are at the same temperature. (D)</p> Signup and view all the answers

    According to Lou, why do metal objects feel colder?

    <p>They are heavier. (D)</p> Signup and view all the answers

    According to Mai, why are metal objects colder than plastic?

    <p>Metal has less heat to lose. (C)</p> Signup and view all the answers

    What does Ali point out about the statement '5°C is colder than 10°C'?

    <p>5°C is not twice as cold as 10°C. (A)</p> Signup and view all the answers

    What does Raj suggest about temperatures of 5°C and 10°C?

    <p>10°C is twice as warm as 5°C. (B)</p> Signup and view all the answers

    What does Pam say about why cakes cook faster on the top shelf?

    <p>Heat Rises (B)</p> Signup and view all the answers

    According to Jed, why can't you get water at 0°C?

    <p>There is no reason, you can get water at 0°C. (D)</p> Signup and view all the answers

    Jim believes he can't make tea on a high mountain because:

    <p>Water doesn’t boil at high altitudes. (D)</p> Signup and view all the answers

    Joy says that water boils at high altitudes, but:

    <p>The boiling water is just not as hot. (D)</p> Signup and view all the answers

    Mel is boiling water in a saucepan. What are the bubbles mostly made of?

    <p>Water vapor (C)</p> Signup and view all the answers

    Mel cools eggs after boiling them by placing them in cold water. Which statement explains the cooling process?

    <p>Energy is transferred from the eggs to the water (D)</p> Signup and view all the answers

    Why does a metal ruler feel colder than a wooden ruler, even if they are at the same temperature?

    <p>Metal conducts energy away from your hand more rapidly. (B)</p> Signup and view all the answers

    Jan thinks metal chairs are colder than plastic chairs because they:

    <p>Conduct heat more rapidly from the body (A)</p> Signup and view all the answers

    Amy wraps two bottles of water in washcloths, one wet and one dry. After 20 minutes, the bottle with the wet washcloth is cooler. What was the most likely room temperature during this experiment?

    <p>26°C (D)</p> Signup and view all the answers

    Dan is holding two cartons of milk, one from the refrigerator and one sitting on the counter. The refrigerated one feels colder because it:

    <p>Contains less heat (C)</p> Signup and view all the answers

    Why does sweating cool you down?

    <p>Sweat is the same temperature as your skin but is evaporating and so is carrying heat away. (B)</p> Signup and view all the answers

    Ron thinks his mother uses a pressure cooker to cook soup faster. Emi says it is because:

    <p>The pressure causes the water to boil at a higher temperature (D)</p> Signup and view all the answers

    When Zack uses a bicycle pump, the pump gets hot. Which explanation is best?

    <p>Energy has been transferred to the pump. (D)</p> Signup and view all the answers

    Why do we wear sweaters in cold weather?

    <p>Sweaters prevent heat from escaping our bodies quickly. (D)</p> Signup and view all the answers

    What is the primary method of heat transfer through a solid metal?

    <p>Conduction (D)</p> Signup and view all the answers

    What is one reason to keep a super-conductor at a low temperature?

    <p>To keep cold out. (A)</p> Signup and view all the answers

    Vic takes some Popsicles from the freezer, and tells everyone that the wooden sticks are at a higher temperature than the ice part. Who do you most agree with regarding the temperature of the sticks and ice?

    <p>Ann says: “I think they are at the same temperature because they are together.” (D)</p> Signup and view all the answers

    Which material is generally a good thermal conductor?

    <p>Metal (D)</p> Signup and view all the answers

    What is the process by which heat is transferred through a fluid by the movement of the fluid itself?

    <p>Convection (D)</p> Signup and view all the answers

    Gay saw physicists make super-conductor magnets, which were at a temperature of –260°C. Leo believes the magnet was near the lowest temperature possible, but Gay is not sure. Who is correct?

    <p>Leo (B)</p> Signup and view all the answers

    Ami used to wrap her dolls in blankets but could never understand why they didn’t warm up. Which explanation is most accurate?

    <p>Nick replied: “It’s because the blankets you used were probably poor insulators.” (B)</p> Signup and view all the answers

    What is the function of a blanket?

    <p>Stop transfer of heat. (D)</p> Signup and view all the answers

    What unit is temperature normally measured in?

    <p>Kelvin (A)</p> Signup and view all the answers

    If two objects are touching, what can you say about their temperature?

    <p>They will eventually be at the same temperature. (D)</p> Signup and view all the answers

    What does it mean for something to be a good insulator?

    <p>Prevents heat from passing through it easily. (C)</p> Signup and view all the answers

    Flashcards

    Boiling point of water

    The temperature at which water turns to vapor, usually 100°C at sea level.

    Boiling water at high altitude

    At high altitudes, water boils at a lower temperature due to reduced atmospheric pressure.

    Cooling process of eggs

    Heat transfers from the hot eggs to the cold water, cooling them down.

    Pressure cooker function

    A sealed cooking pot that cooks food faster by raising the pressure and temperature.

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    Air in boiling water

    Bubbles in boiling water often contain vaporized water, not air.

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    Heat conduction in materials

    Materials conduct heat at different rates; metals conduct heat better than plastics.

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    Energy transfer in thermal processes

    Energy always flows from hot to cold until temperature equilibrium is reached.

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    Effect of ambient temperature

    Objects feel colder or warmer based on their heat capacity and surrounding temperature.

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    Concept of Temperature

    Temperature is a measure of how hot or cold something is, expressed in degrees Celsius or Fahrenheit.

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    Heat Transfer

    Heat transfer refers to the movement of thermal energy from a warmer object to a cooler one.

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    Pressure and Boiling Point

    Increasing pressure raises the boiling point of water, allowing it to boil above 100°C.

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    Density of Warm Air

    Warm air is less dense than cold air; it rises because it is lighter.

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    Material Conductivity

    Different materials conduct heat differently; metals tend to be better conductors than plastics.

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    Temperature Comparison

    Comparing temperatures is not linear; 10°C is not simply 'twice as warm' as 5°C.

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    Perception of Temperature

    An object's temperature can feel different; heavy metals feel colder than plastic because they conduct heat away faster.

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    Heat Distribution in Ovens

    In electric ovens, heat distribution can vary; often the top shelf is hotter due to rising heat.

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    Super-conductor

    A material that conducts electricity without resistance at low temperatures.

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    Heat Conductor

    A material that allows heat to move through it easily.

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    Insulator

    A material that does not conduct heat well.

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    Temperature

    A measure of how hot or cold something is.

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    Heat Loss

    The transfer of heat from a warm object to a cooler object.

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    Cold Perception

    How we perceive temperature; wooden sticks feel warmer than ice.

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    Temperature Consistency

    The idea that two objects can be at the same temperature despite feeling different.

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    Unconventional Cooling

    Cooling materials to extremely low temperatures, like -260°C.

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    Boiling Water Temperature

    Water boils at 100°C, but it can also be expressed as 212°F.

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    Steam Temperature

    The temperature above boiling water can vary; often around the boiling point, 100°C.

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    Mixing Water Temperatures

    Combining different water temperatures results in a new temperature based on the amounts mixed.

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    Ice vs Water in Freezer

    100 grams of ice at 0°C and 100 grams of water at 0°C both lose heat, but ice requires more heat to freeze completely.

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    Heat Energy in Ice

    Ice at 0°C contains heat energy; the process of melting or freezing plays a key role in heat exchange.

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    Kettle Boiling Temperature

    The temperature of water in a kettle that is boiling is at least 100°C under normal atmospheric conditions.

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    Thermal Equilibrium

    A state where two substances at different temperatures reach the same temperature after mixing.

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    Temperature of Ice Cubes

    The most likely temperature of ice cubes in a freezer is about -10°C.

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    Melting Ice Cubes

    When ice cubes are stirred in water, their temperature stabilizes to 0°C as they melt.

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    Room Temperature of Ice Left Out

    Ice cubes left on the counter likely melt to a temperature of about 0°C.

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    Heating Cola in a Can

    The temperature of cola in a can taken from the fridge is 7°C.

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    Plastic Bottle vs Can

    A plastic bottle of cola may be warmer than 7°C if left out longer than the can.

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    Puddle of Water

    Smaller ice cubes lying in a puddle of water are likely at 0°C.

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    Conditions Affecting Temperature

    The temperature of liquids can vary based on size and amount, affecting cooling or heating rates.

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    Metal vs. Wood Temperature Sensation

    Metal feels colder than wood because it conducts heat away from your hand faster than wood does.

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    Sweat Cooling Effect

    Sweat cools the body by evaporating, which draws heat away from the skin.

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    Wet vs. Dry Washcloth Experiment

    A wet washcloth lowers water temperature faster due to evaporation compared to a dry one, which absorbs less heat.

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    Heat Transfer in Pumping

    Pumping air heats the pump because energy is transferred from the user’s hand to the pump.

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    Thermal Energy Flow

    Heat flows from warmer objects to cooler ones, resulting in temperature changes when in contact.

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    Evaporation Cooling

    Evaporation removes heat from a surface, making it feel cooler, like when sweat evaporates off skin.

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    Room Temperature Effect in Experiments

    Room temperature affects thermal readings, influencing how quickly items gain or lose heat.

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    Why Wear Sweaters?

    Sweaters provide insulation, trapping warm air close to the body to keep us warm in cold conditions.

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    Study Notes

    Thermal Concept Evaluation - Appendix I

    • Purpose: This questionnaire assesses understanding of heat and temperature. Visualize the scenario of friends discussing phenomena in a kitchen.
    • Question Format: Multiple choice questions with various answer options (some have 5). Choose the response closest to understanding.
    • Question 1: What's the typical temperature of ice cubes in a refrigerator's freezer compartment?
      • Options include -10°C, 0°C, 5°C, and others.
    • Question 2: What is the estimated water temperature after ice cubes have dissolved?
      • Options cover temperatures lower than, equal to, or greater than 7°C (the temperature of a liquid example in the same context).
    • Question 3: Estimate the temperature of ice cubes that have partially melted?
      • Likely options: -10°C, 0°C, 5°C, 10°C.
    • Question 4: What's the most likely temperature of rapidly boiling water on a stove? -Options include 88°C, 98°C, 110°C and 120°C.
    • Question 5: What is the likely temperature of water while it's still boiling (after the initial rapid boil)? -Answer options again include those above.
    • Question 6: Estimate the temperature of steam rising above boiling water. -Options include temperatures in the same ranges as previous questions.
    • Question 7: What will the likely temperature be after mixing three samples of water at different temperatures? -Likely options in °C: 20°C or 25°C.
    • Question 8: What do students believe about boiling water at higher altitudes? -Options include that it does not boil at same temp. or that it just isn't as hot.
    • Questions 9-12: Various scenarios concerning heat transfer and temperature in different contexts; include questions regarding heat transfer between objects, temperature changes, and the reasons for these changes. -Various answer options.

    Thermal Concept Evaluation - Appendix II

    • Question 13: Explain what happens to eggs when placed in cold water after cooking. -Options about heat transfer and energy transfer.
    • Question 14: Why do students feel metal chairs are colder than plastic ones? -Options cover concepts of heat conduction and temperature.
    • Question 15: A scenario about interpreting weather forecasts; comparing temperature differences. -Focus on understanding the meaning of temperature change, not just the numerical value.
    • Question 16: Students feel a metal ruler is colder than a wooden one; an explanation for why that happens. -Options about conduction between materials.
    • Question 17: Water is wrapped in wet and dry washcloths; describe the water’s temperature after a certain time. -Options about temperature changes and environmental conditions.
    • Question 18: Two milk cartons, one cold from the fridge, one warm from the counter; explain why one feels colder to the touch. -Options about heat transfer, conduction, and heat capacity.
    • Questions 19-22: Multiple scenarios about cooking methods and heat-related aspects; consider the reasons behind certain phenomena (e.g., pressure cookers, oven temperature distribution). -Options cover scientific explanations regarding processes like heat transfer, and conduction.
    • Question 23: Use of sweaters during cold weather to keep warm and reduce heat loss.
    • Question 24: Popsicles and wooden sticks; considering their temperatures. -Options cover whether the materials are at the same temperature or if they feel different due to properties.
    • Question 25, 26: Discussions involving very low temperatures for certain materials; considering temperature limits.

    Appendix II- Statistical Procedures

    • Effect size: Formula to calculate the magnitude of a difference between two groups (|X₂-X₁|/σ₁ or |X₂-X₁|/σ₂)
    • Use of this Form: Calculates effect size assuming equal variances, or adjusted with unequal variances.
    • Average normalized gain: A measure of learning, (Xpost-Xpre)/(100-Xpre)).
    • Index of item difficulty (E): Percentage of students answering an item correctly; higher values indicate easier items.
    • Index of item discrimination (D): Difference in correct responses between high- and low-achieving students; higher values mean better discrimination. Methods for quantifying and interpreting item difficulty and discrimination from test measurements.

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    Thermal Concept Evaluation PDF

    Description

    Test your knowledge on the temperatures of ice, water, and steam in various scenarios. This quiz will challenge your understanding of thermal equilibrium and the properties of water in different states. Dive into questions about ice cubes in a freezer, boiling water, and mixing temperatures.

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