Temperature and temperature Scale
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Questions and Answers

What is the temperature of the sun's surface in Kelvin?

  • 5000 K
  • 8000 K
  • 7000 K
  • 6000 K (correct)
  • What is the temperature at which hypothermia becomes life-threatening?

  • 37°C
  • 30°C
  • 32.2°C (correct)
  • 35°C
  • What is the normal body temperature range during Stage 1 of hypothermia?

  • 37-39°C
  • 35-37°C (correct)
  • 39-41°C
  • 33-35°C
  • What is a symptom of a person entering Stage 2 of hypothermia?

    <p>Inability to touch their thumb with their little finger</p> Signup and view all the answers

    What is the body temperature range during Stage 2 of hypothermia?

    <p>33-35°C</p> Signup and view all the answers

    What is the unit of temperature in the Wien Displacement law?

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

    What is the normal range of body temperature for an average person?

    <p>98°F (37°C) to 100°F (37.8°C)</p> Signup and view all the answers

    What is the condition called when your body temperature falls to 95°F (35°C) or lower?

    <p>Hypothermia</p> Signup and view all the answers

    What is the term for the process of heat loss through sweat evaporation?

    <p>Evaporation</p> Signup and view all the answers

    Which of the following can raise your internal body temperature?

    <p>Fever</p> Signup and view all the answers

    What is the part of the brain that controls thermoregulation?

    <p>Hypothalamus</p> Signup and view all the answers

    What is the term for the process of heat loss through direct contact with an object?

    <p>Conduction</p> Signup and view all the answers

    What is the result of surface blood vessels contracting further in a person experiencing hypothermia?

    <p>The body focuses its remaining resources on keeping the vital organs warm</p> Signup and view all the answers

    At what temperature does shivering usually stop in a person experiencing hypothermia?

    <p>Below 32°C</p> Signup and view all the answers

    What is the result of cellular metabolic processes shutting down in a person experiencing hypothermia?

    <p>Major organs start to fail</p> Signup and view all the answers

    What is the purpose of thermoregulation in the human body?

    <p>To maintain a constant body temperature</p> Signup and view all the answers

    What is the characteristic of a person's skin when their body temperature drops below 30°C?

    <p>It becomes blue and puffy</p> Signup and view all the answers

    What is the state of equilibrium that the body strives to maintain through thermoregulation?

    <p>Homeostasis</p> Signup and view all the answers

    What happens when your internal temperature becomes too low or high?

    <p>It sends signals to your muscles, organs, glands, and nervous system</p> Signup and view all the answers

    What role does the hypothalamus play in thermoregulation?

    <p>It receives messages from the central nervous system</p> Signup and view all the answers

    What happens to blood vessels under the skin when the body needs to cool down?

    <p>They get wider</p> Signup and view all the answers

    What is the function of thermogenesis in thermoregulation?

    <p>To produce heat in the body</p> Signup and view all the answers

    What is the result of vasoconstriction when the body needs to warm up?

    <p>The blood vessels become narrower</p> Signup and view all the answers

    What is the function of hormonal thermogenesis in thermoregulation?

    <p>To increase the body's energy production</p> Signup and view all the answers

    What is the freezing point of water on the Celsius scale?

    <p>0°C</p> Signup and view all the answers

    What is the relationship between a temperature difference on the Celsius and Fahrenheit scales?

    <p>ΔTF = 9/5 ΔTC</p> Signup and view all the answers

    What is the boiling point of water on the Fahrenheit scale?

    <p>212°F</p> Signup and view all the answers

    What is the purpose of identifying two reproducible temperatures in creating a temperature scale?

    <p>To establish a reference point for the scale</p> Signup and view all the answers

    What is the characteristic of an absolute temperature scale?

    <p>It has a zero point at absolute zero</p> Signup and view all the answers

    What is the significance of the concept of absolute zero in temperature measurement?

    <p>It is the lowest possible temperature</p> Signup and view all the answers

    The Kelvin scale is a relative temperature scale.

    <p>False</p> Signup and view all the answers

    The freezing point of water is 273.15 K on the Kelvin scale.

    <p>True</p> Signup and view all the answers

    The Kelvin scale is defined in terms of the freezing and boiling points of water.

    <p>False</p> Signup and view all the answers

    Temperature differences are the same in units of kelvins and degrees Celsius.

    <p>True</p> Signup and view all the answers

    The triple-point temperature is defined as 373.16 K.

    <p>False</p> Signup and view all the answers

    The Kelvin scale is part of the SI system of units.

    <p>True</p> Signup and view all the answers

    The degree sign is used with the Kelvin temperature unit.

    <p>False</p> Signup and view all the answers

    The boiling point of water is 273.15 K on the Kelvin scale.

    <p>False</p> Signup and view all the answers

    Absolute zero is defined as 0 K.

    <p>True</p> Signup and view all the answers

    The Kelvin scale is commonly used in everyday activities.

    <p>False</p> Signup and view all the answers

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