Unit 2 Lesson 2 Temperature
Particle Party
What is the kinetic theory of matter?
•The __________________theory of matter states that all of the particles that make up
matter are constantly in _______________________
•Because the particles are in motion, they have __________________ energy.
•The ________________________they move, the more kinetic energy they have.
What is the kinetic theory of matter?
•The motion of the particles is _______________________
•The individual _______________________ have different amounts of kinetic energy, but
their average kinetic energy takes into account their different random motions.
•Solids, liquids, and gases have _____________________average kinetic energies.
•The kinetic theory of _______________________explains the motion of particles in solids,
liquids, and gases.
How do particles move in solids, liquids, and gases?
•The particles in a solid do ___________________move freely.
•They vibrate in the same position and are held _____________ together by forces of
attraction.
How do particles move in solids, liquids, and gases?
•The particles in a liquid move much more ________________than the particles in a solid.
They slide past and tumble over each other.
How do particles move in solids, liquids, and gases?
•The particles in a gas are far apart, move at________________ speeds, and collide with one
another.
Mercury Rising
How does temperature relate to kinetic energy?
•__________________ is a measure of the average kinetic energy of all the particles in an
object.
•The _____________ a substance is, the faster its particles move, so the kinetic energy is high.
•The ____________ a substance is, the slower its particles move, and the kinetic energy is low.
•Absolute zero is the temperature at which the motion of particles ____________________
How is temperature measured?
•There are _________________common temperature scales.
•They all measure the average kinetic energy of __________________________
•The scales are called_______________, _________________, and ____________________.
How is temperature measured?
•In the Celsius and Fahrenheit scales, temperature is measured in units called _____________.
•Degrees (°) are _________________spaced units between two points. The space between
degrees can vary from one scale to another.
•In the Kelvin scale, no degree sign is used. The unit is just called a ___________________.
•Temperature is measured with a ____________________________.
How is temperature measured?
•The _______________ scale is the temperature scale most commonly used around the world.
•This scale was developed in the 1740’s by Anders ____________________________
•On this scale, pure water ___________________________at 0°C and boils at 100 °C.
•There are 100 degrees, or 100 equal units between the freezing point and __________point
of water.
How is temperature measured?
•The _________________________scale is used most commonly in the United States.
•It was developed in the early 1700s by Gabriel ______________________________________
•On this scale, pure water________________________ at 32 °F and boils at 212 °F.
•There are 180 degrees, or 180 equal units between the _________________point and boiling
point of water.
How is temperature measured?
•The Kelvin scale is used most commonly by __________________________
•This scale was developed in the__________________________ century.
•The equal units on this scale are called ________________________ not degrees.
•On this scale, pure water _____________________________at 273 K and boils at 373 K.
•The ______________________temperature on the Kelvin scale is absolute zero, or 0 K.