40 Questions
What is the temperature of the sun's surface in Kelvin?
6000 K
What is the temperature at which hypothermia becomes life-threatening?
32.2°C
What is the normal body temperature range during Stage 1 of hypothermia?
35-37°C
What is a symptom of a person entering Stage 2 of hypothermia?
Inability to touch their thumb with their little finger
What is the body temperature range during Stage 2 of hypothermia?
33-35°C
What is the unit of temperature in the Wien Displacement law?
K (Kelvin)
What is the normal range of body temperature for an average person?
98°F (37°C) to 100°F (37.8°C)
What is the condition called when your body temperature falls to 95°F (35°C) or lower?
Hypothermia
What is the term for the process of heat loss through sweat evaporation?
Evaporation
Which of the following can raise your internal body temperature?
Fever
What is the part of the brain that controls thermoregulation?
Hypothalamus
What is the term for the process of heat loss through direct contact with an object?
Conduction
What is the result of surface blood vessels contracting further in a person experiencing hypothermia?
The body focuses its remaining resources on keeping the vital organs warm
At what temperature does shivering usually stop in a person experiencing hypothermia?
Below 32°C
What is the result of cellular metabolic processes shutting down in a person experiencing hypothermia?
Major organs start to fail
What is the purpose of thermoregulation in the human body?
To maintain a constant body temperature
What is the characteristic of a person's skin when their body temperature drops below 30°C?
It becomes blue and puffy
What is the state of equilibrium that the body strives to maintain through thermoregulation?
Homeostasis
What happens when your internal temperature becomes too low or high?
It sends signals to your muscles, organs, glands, and nervous system
What role does the hypothalamus play in thermoregulation?
It receives messages from the central nervous system
What happens to blood vessels under the skin when the body needs to cool down?
They get wider
What is the function of thermogenesis in thermoregulation?
To produce heat in the body
What is the result of vasoconstriction when the body needs to warm up?
The blood vessels become narrower
What is the function of hormonal thermogenesis in thermoregulation?
To increase the body's energy production
What is the freezing point of water on the Celsius scale?
0°C
What is the relationship between a temperature difference on the Celsius and Fahrenheit scales?
ΔTF = 9/5 ΔTC
What is the boiling point of water on the Fahrenheit scale?
212°F
What is the purpose of identifying two reproducible temperatures in creating a temperature scale?
To establish a reference point for the scale
What is the characteristic of an absolute temperature scale?
It has a zero point at absolute zero
What is the significance of the concept of absolute zero in temperature measurement?
It is the lowest possible temperature
The Kelvin scale is a relative temperature scale.
False
The freezing point of water is 273.15 K on the Kelvin scale.
True
The Kelvin scale is defined in terms of the freezing and boiling points of water.
False
Temperature differences are the same in units of kelvins and degrees Celsius.
True
The triple-point temperature is defined as 373.16 K.
False
The Kelvin scale is part of the SI system of units.
True
The degree sign is used with the Kelvin temperature unit.
False
The boiling point of water is 273.15 K on the Kelvin scale.
False
Absolute zero is defined as 0 K.
True
The Kelvin scale is commonly used in everyday activities.
False
Test your understanding of temperature and thermometry concepts, including the Wien Displacement law and its application to real-world examples, such as the surface temperature of the sun. Also, explore the effects of temperature on the human body, including hypothermia.
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