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Bella S1 Heat
S1 Conduction, Convection, Radiation
| Question | Answer |
|---|---|
| The transfer of heat by direct contact between particles is called | conduction |
| The transfer of heat into liquids and gases through currents is called | convection |
| The transfer of heat by infrared waves is called | radiation |
| A metal spoon gets hot in boiling water is an example of | conduction |
| A egg on a frying pan sizzles when it cooks is an example of | conduction |
| An ice cube in a hand begins to melt is an example of | conduction |
| A metal cup gets hot when boiling water is poured in it | conduction |
| When cool air sinks to the ground on a warm night is an example of | convection |
| When air is warmer near the ceiling than the floor is an example of | convection |
| When toes are warmer in front of a space heater is an example of | radiation |
| When the sun melts a icy lawn is an example of | radiation |
| Is the sun the source of all of our energy | yes |
| What are the three types of heat transfers | conduction,convection and radiation |
| Radiation is the transfer of heat by | infrared waves |
| Conduction transfers heat by | direct contact |
| Convection transfers heat in liquids and gases by creating a.... | Convection current |
| Conduction is the direct transfer of heat energy when molecules... | vibrate and bump into each other |
| As cold air becomes more dense it pushes up warmer air creating a...... | Convection current |
| What is Heat? | A type of Energy |
| What is temperature? | A measure of how much heat energy a substance has |
| What is an Insulator | A substance that does not allow heat energy to pass through it easily |
| What is a Conductor | A substance that DOES allow heat energy to pass through it easily |
| What group of substances are good conductors | Metals |
| What happens to the DENSITY of liquids or gases when they are heated? | Density decreases |
| Do LESS dense substances rise or fall in their surroundings? | Rise |
| Name an every day use of an insulator in the kitchen | Pot handles, wooden spoon etc |
| Name an everyday use of conductors in the kitchen | Metal pots etc |
| What colour in best to ALLOW heat energy to pass through it by radiation? | Black |
| What colour is best to PREVENT heat energy passing through it by radiation? | Silver |
Created by:
nscobie
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