Page 73 - Science Course 1 (Book 2)
P. 73
Mo8-L5a: How are Temperature, Kinetic Energy, and Heat Related and Different?
What is temperature? Temperature and thermal energy are related, but they
are not the same.
Scientists def ne temperature in terms of kinetic
energy. The particles that make up liquid and solid water
have different potential energies and, therefore,
Temperature represents the average kinetic energy different thermal energies.
of the particles that make up a material.
Kinetic Energy increases Kinetic Energy decreases
as temperature goes up as temperature goes
down
The greater the average kinetic energy of particles,
the greater the temperature.
The particles in warmer air move at a greater
average speed than the particles in colder air.
Thermometers are
used to measure
temperature.
Common tem-
perature scales
are Celsius (°C),
Kelvin (K), and
Fahrenheit (°F).
Key Concept
How are Temperature, Kinetic Energy, and Heat Related and Different?
How are temperature and kinetic energy related?
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