Chapter 15 Temp and Heat

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Physics - Thermodynamics

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Cards in this deck(38)

Heat always transfers from a _____ object to a cold object.

Temperature describes how _____ or cold something is.

Temperature is measured based on the _____ and contraction of a fluid.

The Celsius scale is based on the properties of _____.

An increase of 1 degree Celsius is equivalent to an increase of 1 _____.

The Kelvin scale has no _____ values.

The atoms of all objects are in constant _____ motion.

Temperature is a measure of the average _____ energy of the particles in an object.

Absolute zero is the temperature at which particles have no _____ energy, and all molecular motion has stopped.

Temperature does not indicate the total _____ energy contained in an object, only the average.

Humans have an average body temperature of _____ degrees Fahrenheit.

Heat is the energy that transfers from one object to another because of a _____ difference.

Heat will flow until there is a thermal _____ between two objects.

Heat is measured in _____, including the definition of calorie and kilocalorie.

Specific heat capacity measures the amount of energy needed to raise the temperature of a sample by one _____.

Sand has a low specific heat capacity, which means its temperature heats up _____ as soon as the sun comes up.

Water has a high specific heat capacity, so it takes longer to heat up but also _____ off more slowly.

A desert gets very cold at night due to the sand's low specific heat, meaning it loses heat _____.

Low humidity and clear night skies cause lots of re-radiation of heat from the ground up into _____ space.

A calorimeter is a device used for measuring heat _____ or lost by an object.

The heat lost by the contents of the inner chamber equals the heat _____ by water.

Heat gained equals heat _____ in a closed system.

The symbol Q represents the _____ of heat in thermodynamics.

The symbol m represents _____ in the formula for specific heat.

The symbol c represents _____ heat in the formula for specific heat.

The symbol ΔT represents the change in _____ in thermodynamics.

The formula for specific heat is q = mcΔT, where q is the heat _____.

The specific heat of water is _____ cal/gram/degree.

Temperature is not the total _____ energy; it is the average kinetic energy of particles.

As temperature increases, molecules move _____ and spread out.

Without expansion joints, roads, sidewalks, and buildings would _____ and crack in the summer.

Bimetallic strips are made of strips of two different _____ joined together.

A bimetallic strip curves when heated or cooled because it expands and contracts at different _____.

The southern hemisphere has milder weather because there is more _____.

Water is most dense as a liquid at _____ degrees Celsius.

Below 4 degrees Celsius, water molecules form hexagonal _____ with empty space in the center.

Water expands as _____ forms.

Deep lakes and ponds do not freeze solid because the top layer of ice _____ water below from cold air.

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Chapter 15 Temp and Heat

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