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SCIENCE STUDY NOTES
These are notes for our subject ''Heat in the Environment''
Question | Answer |
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What is heat? | It is the transfer of energy from the particles of a warmer object to the particles of a cooler object. |
How does a game of billiards/pool help to explain heat? | When the fast moving white ball COLLIDES with a stationary ( non-moving ball) the white ball transfers energy to the stationary ball, the white ball slows down and the stationary ball starts to move. Similarly heat transfers to particles of that object. |
What is temperature? | A measure of the average kinetic energy of the particles of a substance. |
What is thermal energy? | It is the total kinetic energy and energy of attraction of all the particles of a material. Total kinetic energy + energy of attraction. |
What direction does thermal energy naturally flow in? | Thermal energy naturally moves form a substance with a higher temperature to a substance with a lower temperature. |
Explain how CONDUCTION causes an egg to cook in a fry pan? | a) Energy from the burner travels through the pan and in to the egg b) The particles of the pan collide with the particles of the egg, causing the eggs particles to move faster. |
What is CONDUCTION and how is it caused? | CONDUCTION is the transfer of thermal energy through a substance or between substance in contact, conduction is caused by the collision of particles. (e.g.) Cooking an Egg in a Fry Pan. |