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Heat is closely related but not the same as temperature Heat is a flow of energy from one object at a higher temperature to an object at a lower temperature

Heat is closely related but not the same as temperature Heat is a flow of energy from one object at a higher temperature to an object at a lower temperature

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Page 1: Heat is closely related but not the same as temperature Heat is a flow of energy from one object at a higher temperature to an object at a lower temperature

Heat is closely related but not the same as temperatureHeat is a flow of energy from one object at a higher temperature to an object at a lower temperature

Page 2: Heat is closely related but not the same as temperature Heat is a flow of energy from one object at a higher temperature to an object at a lower temperature

If you add energy to heat, at a certain point the energy will go up. Then the temperature willno longer go up

and heat will change thephysical state of water.

(Steam)

Page 3: Heat is closely related but not the same as temperature Heat is a flow of energy from one object at a higher temperature to an object at a lower temperature

Heat is always the transfer on energy from an object of an higher temperature to a lower temperature.

When energy flows from a warmer object to a cooler object, the thermal energy of both of the objects changes.

Page 4: Heat is closely related but not the same as temperature Heat is a flow of energy from one object at a higher temperature to an object at a lower temperature

When you put ice cubes in a pitcher of lemonade this is another example of thermal energy

Energy is transferred from the warmer lemonade to the colder ice.

As energy is transferred the average kinetic energy decreases.

Why?

Page 5: Heat is closely related but not the same as temperature Heat is a flow of energy from one object at a higher temperature to an object at a lower temperature

The most common units of heat measurement are the calorie and the joule.

One calorie is the amount of energy needed to raise the temperature of one gram of water by 1 degree Celsius.

Everyone thinks of a calorie in terms of food, correct?

Page 6: Heat is closely related but not the same as temperature Heat is a flow of energy from one object at a higher temperature to an object at a lower temperature

One calorie is equal to one kilocalorie or 1000 calories

This means that one calorie in terms of food contains enough energy to raise the temperature of 1 kilogram of water by 1 degree Celsius

Page 7: Heat is closely related but not the same as temperature Heat is a flow of energy from one object at a higher temperature to an object at a lower temperature

Each calorie in food contains 1000 calories of energy

They figure a calorie in food by using a calorimeter. They heat the food item such as cake.

Page 8: Heat is closely related but not the same as temperature Heat is a flow of energy from one object at a higher temperature to an object at a lower temperature

In the scientific community a joule is used to measure energy

Page 9: Heat is closely related but not the same as temperature Heat is a flow of energy from one object at a higher temperature to an object at a lower temperature

One calorie is equal to 4.18 joules

The amount of energy required to raise the temperature of 1 gram of a substance by 1 degree Celsius is specific heat

Basically each substance absorbs a different amount of energy required to increase overall temperature

Page 10: Heat is closely related but not the same as temperature Heat is a flow of energy from one object at a higher temperature to an object at a lower temperature

The larger the mass is the more kinetic energy it will have. Therefore the larger item will have a higher specific heat.

The temperature of larger bodies of water such as lakes also affect the temperatures of its shores.

Page 11: Heat is closely related but not the same as temperature Heat is a flow of energy from one object at a higher temperature to an object at a lower temperature

During the spring/summer the lake warms slowly which keeps the shore cool

During the fall/winter the lake cools slowly, which keeps the shore warmer