Specific Heat Capacity - Part 1
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Physics
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11th Grade
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Medium
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Standards-aligned
HIRMAN Moe
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12 Slides • 8 Questions
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Specific Heat Capacity - Part 1
PHYSIC FORM 4 KSSM SMKAI
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Have you have an experienced like shown in the picture. Think, and choose the best answer in next slide.
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Multiple Choice
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By exposing different objects with same amount of heat, does not make object heats up equally in a same time. Different objects have different heat capacity. Remember on the first picture? Sand has a low heat capacity and gets hot quickly while sea water has a high heat capacity and gets hot slowly.
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Heat capacity, C
Heat capacity, C of an object is the quantity of heat needed to raise the temperature of the object by 1°C.
Q = quantity of heat supplied
Δθ = change in temperature
Unit for C = J °C–1
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Multiple Choice
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Multiple Choice
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Physics is about quantity!!!
When 100 J of heat is supplied to objects X and Y, object X experiences a rise in temperature of 1°C and object Y 2°C. What are the respective heat capacity of objects X and Y?
Look at the diagram given, caculate, use the formula given. Then, you may use the answer to identify which object has high heat capacity.
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Multiple Choice
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Multiple Choice
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Multiple Choice
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Heat capactiy
Observe the diagram given. Both object heated by immersion heater with 12 000 J of energy for 5 minutes. Which object do you think will have higher temperature increase?
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Multiple Choice
If the water in beaker A and beaker B is heated for 5 minutes using the same Bunsen burner, which water in the beaker will show higher temperature?
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Specific Heat Capacity of Substance
A material engineer tries to choose a suitable metal as building material. He needs a material that does not heat up easily. Since the heat capacity of a material differs with its mass, he needs to make his choice based on specific heat capacity instead – which means he has to choose the material based on the heat capacity of every 1 kg of each material.
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For example, the specifi c heat capacity of the metal aluminium is 900 J kg–1 °C–1. Th is means 1 kg of aluminium requires 900 J of heat to raise its temperature by 1°C.
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Multiple Choice
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Specific Heat Capacity - Part 1
PHYSIC FORM 4 KSSM SMKAI
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