J E O P A J E O P A R D Y !R D Y !

Tu parles Tu parles Latent?Latent?

Feelin’ hot, Feelin’ hot, hot, hothot, hot Be specificBe specific The Temp.The Temp. Help Ms. Help Ms.

Al-KhalifaAl-Khalifa CalculateCalculate Col VIICol VII Col VIIICol VIII

100 100 100 100 100 100 100100 100100

200 200 200 200 200 200 200200 200200

300 300 300 300 300 300 300300 300300

400 400 400 400 400400 400400 400400 400400

500500 500500 500500 500500 500500 500500 500500 500500

The amount of energy required to melt 1 kg of the solid to a liquid

1x100

1x100

1x200

1x200

The amount of energy required to BOIL 1 kg of the liquid to gas

1x300

1x300

It doesn’t change during the It doesn’t change during the melting or boiling processmelting or boiling process

1x400

1x400

It is why 1 kg of water needs It is why 1 kg of water needs 2,300,000 J to change from a liquid 2,300,000 J to change from a liquid

to a gas.to a gas.

1x500

1x500

Increasing the pressure lowers the Increasing the pressure lowers the ______ point of a substance and ______ point of a substance and

increases the _______ point.increases the _______ point.

2x100

2x100

Heat SI unitHeat SI unit

2x200

2x200

Temperature unitsTemperature units

2x300

2x300

How does heat move?How does heat move?

2x400

2x400

What is the equation to calculate What is the equation to calculate heat?heat?

2x500

2x500

Explain the difference Explain the difference between heat & between heat &

temperaturetemperature

3x100

3x100

It is the amount of energy It is the amount of energy needed to raise ___ kg of a needed to raise ___ kg of a

substance ____ substance ____ °C.°C.

3x200

3x200

Why does sand on the beach feel Why does sand on the beach feel much warmer than the sea?much warmer than the sea?

3x300

3x300

Specific heat unitsSpecific heat units

3x400

3x400

Instrument used to find the Instrument used to find the specific heat of a metal.specific heat of a metal.

3x500

3x500

Describe an experiment to find out Describe an experiment to find out the specific heat of brass.the specific heat of brass.

4x100

4x100

Celsius at which water freezesCelsius at which water freezes

4x200

4x200

What is happening to the What is happening to the temperature in this graph?temperature in this graph?

4x300

4x300

Temperature is a measure of the Temperature is a measure of the average __________average __________

4x400

4x400

Kelvin at which water boilsKelvin at which water boils

4x500

4x500

What happens to the molecules What happens to the molecules when the temperature decreases?when the temperature decreases?

5x100

5x100

Ms. Al-Khalifa’s water Ms. Al-Khalifa’s water reached 100 degrees reached 100 degrees

Celsius but its not boiling Celsius but its not boiling why?why?

5x200

5x200

Ms. Al-Khalifa is trying to cook Ms. Al-Khalifa is trying to cook meat for her family using a pot but meat for her family using a pot but it takes a very long time and needs it takes a very long time and needs

to add water many times as it to add water many times as it evaporates very quickly. What can evaporates very quickly. What can she use to help make her cooking she use to help make her cooking time less and more easier? Why?time less and more easier? Why?

5x300

5x300

Ms. Al-Khalifa traveled to Alaska Ms. Al-Khalifa traveled to Alaska for a 3 month training course. She for a 3 month training course. She

is starting her car but its not is starting her car but its not running. The repair man told her running. The repair man told her she forgot to put antifreeze in her she forgot to put antifreeze in her car engine. Why is that important?car engine. Why is that important?

5x400

5x400

Ms. Al-Khalifa wants to melt the Ms. Al-Khalifa wants to melt the snow in front of her house. What snow in front of her house. What

can she use?can she use?

5x500

5x500

Other than a car, where can Other than a car, where can antifreeze be used?antifreeze be used?

6x100

6x100

Amount of heat energy needed to Amount of heat energy needed to raise 4 kg of water 20raise 4 kg of water 20°C. Specific °C. Specific

heat of water is 4200J/kg˚Cheat of water is 4200J/kg˚C

6x200

6x200

What is the temperature change What is the temperature change from a liquid to a solid in this from a liquid to a solid in this

graph?graph?

6x300

6x300

25.0 g of mercury is heated from 25°C to 155°C, and

absorbs 455 joules of heat in the process. Calculate the specific

heat capacity of mercury.

6x400

6x400

To what temperature will a 50.0 g piece of glass raise if it absorbs 5275 joules of heat and its specific heat capacity is 500 J/kg°C? The initial temperature of the

glass is 20.0°C.

6x500

6x500 A 5.5kg brass ball at 120oC is placed in

an insulated container of water at 20oC. When the ball and the water

reach thermal equilibrium, their temperature is 50o. The Specific Heat

for brass is 380 J/kgoC and water is 4200 J/kgoC . What is the mass of the

water?HINT: heat gained = heat lost