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Senin, 25 Agustus 2014
Kamis, 14 Agustus 2014
Sabtu, 26 Juli 2014
Home delight for IP students
Checkpoint 1
Physics (notebook)
submission: 11 August 2014
1. Define Physics
2. Give/List 10 importance of Physics in our daily life.
Chemistry
Due: Cp1a: 11 August
Cp1b: 7 August
Bring the following:
soda drinks (smallest) 4 / group
small nails 4/group
Bridging course tshirt/individual
Checkpoint 2
Chemistry (notebook)
Submission: 12 August
1. How are rock layers formed?
2. How do we name rock layers?
3. What are fossils? How are they formed? Give examples and explain
4. What are the types of rocks? Explain each
5. Write a brief summary of the movie "Journey to the Center of the Earth"
IGCSE 1
Submission: 6 August
Chemistry (notebook)
1. List and explain the 3 states of matter and the changes it undergo
2. How does impurity affect the heating and cooling of substances?
IGCSE 2
Chemistry (notebook)
Submission 6 August
1. Read pages 230-233 of the coursebook
2. What are alkali metals?
3. List the properties of alkali metals
Physics (notebook)
submission: 11 August 2014
1. Define Physics
2. Give/List 10 importance of Physics in our daily life.
Chemistry
Due: Cp1a: 11 August
Cp1b: 7 August
Bring the following:
soda drinks (smallest) 4 / group
small nails 4/group
Bridging course tshirt/individual
Checkpoint 2
Chemistry (notebook)
Submission: 12 August
1. How are rock layers formed?
2. How do we name rock layers?
3. What are fossils? How are they formed? Give examples and explain
4. What are the types of rocks? Explain each
5. Write a brief summary of the movie "Journey to the Center of the Earth"
IGCSE 1
Submission: 6 August
Chemistry (notebook)
1. List and explain the 3 states of matter and the changes it undergo
2. How does impurity affect the heating and cooling of substances?
IGCSE 2
Chemistry (notebook)
Submission 6 August
1. Read pages 230-233 of the coursebook
2. What are alkali metals?
3. List the properties of alkali metals
Senin, 21 Juli 2014
welcome my dear students...
Welcome to a new school year... 2014 - 2105 :)
Have a wonderful year ahead!
Ms. Anne
Have a wonderful year ahead!
Ms. Anne
Rabu, 18 Juni 2014
Everyday's a discovery day...
As one famous band lyrics says "don't stop believing" we encounter everyday challenges, it can be social, emotional, physical, financial or even scientific...but the thing is, how do we cope with the challenges that comes in our way? how do we deal with lots of it? do you believe in cause and effect?
Rabu, 28 Mei 2014
Semester Test
The 2nd Semester test is fast approaching... o yeah! it'll start tomorrow...
29 May: Chemistry
Don't forget to study and do your best
Good luck!
God bless
Ms. Anne :)
29 May: Chemistry
Don't forget to study and do your best
Good luck!
God bless
Ms. Anne :)
CP2: The Transfer of Heat Energy
The
heat source for our planet is the sun. Energy from the sun is transferred
through space and through the earth's atmosphere to the earth's surface. Since
this energy warms the earth's surface and atmosphere, some of it is or becomes
heat energy. There are three ways heat is transferred, into the atmosphere:
- Radiation, conduction, convection
Radiation
If you have stood in front of a fireplace or near a campfire, you have felt the heat transfer known as radiation. The side of you nearest the fire warms, while your other side remains unaffected by the heat. Although you are surrounded by air, the air has nothing to do with this transfer of heat. Heat lamps, that keep food warm, work in the same way. Radiation is the transfer of heat energy by electromagnetic radiation.
Most of the electromagnetic radiation that comes to the earth from the sun is in the form of visible light. Light is made of waves of different frequencies. The frequency is the number of instances that a repeated event occurs, over a set time. In electromagnetic radiation, the frequency is the number of times an electromagnetic wave moves past a point each second.
Our brains interpret these different frequencies into colors, including red, orange, yellow, green, blue, indigo, and violet. When the eye views all these different colors at the same time, it is interpreted as white. Waves from the sun which we cannot see are infrared, which have lower frequencies than red, and ultraviolet, which have higher frequencies than violet light.
Most of the solar radiation is absorbed by the atmosphere and much of what reaches the earth's surface is radiated back into the atmosphere to become heat energy. Dark colored objects such as asphalt absorb more of the radiant energy and warm faster that light colored objects. Dark objects also radiate their energy faster than lighter colored objects.
Conduction
Conduction is the transfer of heat energy from one substance to another or within a substance. Have you ever left a metal spoon in a pot of soup being heated on a stove? After a short time the handle of the spoon will become hot. This is due to transfer of heat energy from molecule to molecule or from atom to atom. Also, when objects are welded together, the metal becomes hot (the orange-red glow) by the transfer of heat from an arc. This is called conduction and is a very effective method of heat transfer in metals. However, air conducts heat poorly.
Convection
Convection is the transfer of heat energy in a fluid. This type of heating is most commonly seen in the kitchen when you see liquid boiling.
Air in the atmosphere acts as a fluid. The sun's radiation strikes the ground, thus warming the rocks. As the rock's temperature rises due to conduction, heat energy is released into the atmosphere, forming a bubble of air which is warmer than the surrounding air. This bubble of air rises into the atmosphere. As it rises, the bubble cools with the heat contained in the bubble moving into the atmosphere.
As the hot air mass rises, the air is replaced by the surrounding cooler, more dense air, what we feel as wind. These movements of air masses can be small in a certain region, such as local cumulus clouds, or large cycles in the troposphere, covering large sections of the earth. Convection currents are responsible for many weather patterns in the troposphere.
If you have stood in front of a fireplace or near a campfire, you have felt the heat transfer known as radiation. The side of you nearest the fire warms, while your other side remains unaffected by the heat. Although you are surrounded by air, the air has nothing to do with this transfer of heat. Heat lamps, that keep food warm, work in the same way. Radiation is the transfer of heat energy by electromagnetic radiation.
Most of the electromagnetic radiation that comes to the earth from the sun is in the form of visible light. Light is made of waves of different frequencies. The frequency is the number of instances that a repeated event occurs, over a set time. In electromagnetic radiation, the frequency is the number of times an electromagnetic wave moves past a point each second.
Our brains interpret these different frequencies into colors, including red, orange, yellow, green, blue, indigo, and violet. When the eye views all these different colors at the same time, it is interpreted as white. Waves from the sun which we cannot see are infrared, which have lower frequencies than red, and ultraviolet, which have higher frequencies than violet light.
Most of the solar radiation is absorbed by the atmosphere and much of what reaches the earth's surface is radiated back into the atmosphere to become heat energy. Dark colored objects such as asphalt absorb more of the radiant energy and warm faster that light colored objects. Dark objects also radiate their energy faster than lighter colored objects.
Conduction
Conduction is the transfer of heat energy from one substance to another or within a substance. Have you ever left a metal spoon in a pot of soup being heated on a stove? After a short time the handle of the spoon will become hot. This is due to transfer of heat energy from molecule to molecule or from atom to atom. Also, when objects are welded together, the metal becomes hot (the orange-red glow) by the transfer of heat from an arc. This is called conduction and is a very effective method of heat transfer in metals. However, air conducts heat poorly.
Convection
Convection is the transfer of heat energy in a fluid. This type of heating is most commonly seen in the kitchen when you see liquid boiling.
Air in the atmosphere acts as a fluid. The sun's radiation strikes the ground, thus warming the rocks. As the rock's temperature rises due to conduction, heat energy is released into the atmosphere, forming a bubble of air which is warmer than the surrounding air. This bubble of air rises into the atmosphere. As it rises, the bubble cools with the heat contained in the bubble moving into the atmosphere.
As the hot air mass rises, the air is replaced by the surrounding cooler, more dense air, what we feel as wind. These movements of air masses can be small in a certain region, such as local cumulus clouds, or large cycles in the troposphere, covering large sections of the earth. Convection currents are responsible for many weather patterns in the troposphere.
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