P. S. Chapter 5 Review

The particles in all matter are in constant __ and therefore the particles have ___ energy.

• Rest, potential

• Rest, kinetic

• Motion, kinetic

• Motion, potential

The temperature of an object is the measure of what?

• The kinetic energy of one particle that makes up the object

• The average kinetic energy of all the particles that make up the object

• The sum of all the kinetic energy of all the particles in the object

• The sum of all the kinetic and potential energy in the object

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The thermal energy of an object is the measure of what?

• The kinetic energy of one particle that makes up the object

• The average kinetic energy of all the particles that make up the object

• The sum of all the kinetic energy of all the particles in the object

• The sum of all the kinetic and potential energy in the object

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What connection always exists between thermal energy and temperature?

• The thermal energy of an object increases as its temperature increases

• The temperature of an object increases as its thermal energy increases

• The thermal energy of an object increases as its temperature decreases

• The thermal energy of an object remains the same regardless of temperature changes

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The amount of thermal energy in an object also depends on

• speed

• direction

• weight

• mass

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Heat is defined as

• The exact same as thermal energy.

• The energy that is transferred between objects due to a temp difference.

• The rate at which potential energy changes into kinetic energy

• The rate at which thermal energy moves from a more active particle to a less active one

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Specific heat is defined as

• The heat required to raise the temperature of 1kg of that material by 1 degree C.

• The exact temperature at which an energy transfer occurs

• The amount of heat needed for a substance to change form

• The exact temperature of an object at a specific moment.

Specific heat is measured in

• Joules per kg degree Celsius

• Joules

• Degrees

• Fahrenheit

Why does water have a very high specific heat?

• Water has more particles in it than any other substance

• Water particles can’t move

• Water particles start with negative thermal energy

• Water particles have a strong attraction to each other

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What is the main reason that water is often used as a coolant?

• It can absorb a large amount of thermal energy without a large temperature change

• It flows more easily than other liquids so is easier to work with

• It is clear, so it is easier to see any color changes

• It is colder than other liquids

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