ConceptMap

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Industrialization

par Lamis Galal

IMPACT of COMMUNICATION TECHNOLOGY on the ENVIRONMENT

par Noor Hindash

Charity Concert

par Sampreet Bains

Heat and Environment

par Safwan Armaan

3 Methods of Heat Transfer.

Convection: The transfer of energy in fluids by the movement of the heated particles.

5. Hot Air Balloon.

4. When heat moves to the ice from the air.

3. Warm air put at the top and cooler air goes downward.

2. Boiling water moving in a circular motion.

1. A ceiling fan forcing the warm air downward.

Transferred by the mass motion of molecules.

Conduction: The transfer of thermal energy through matter by the direct contact of particles called conduction.

Examples

5. A metal pot touching a burner.

4. Heat from the car when you touch it.

3. The tortilla burning will touching the pan.

2. The ice touching your hand and melting.

1. Your hand touching the stove.

Transferred by direct contact.

Radiation: The transfer of energy by electromagnetic waves.

Examples:

5. Heating a tin can of water using Bunsen burner,

4. Feeling heat from a campfire.

3. Putting the hand near the burner on an oven.

2. Heat from the sun warming the pool.

1. Laying on the beach and feeling your face getting hot.

Transferred by electromagnetic radiation.