What is heat? Heat is the transfer of thermal energy from something hotter to something colder.
Temperature: tells us how hot or cold an object is.
We measure temperature with an instrument called thermometer.
The unit used to measure temperature is degrees centigrade Cº
CONDUCTORS AND INSULTATORS
Conductors transmit heat very well.
Insulators do not transmit heat well, plastics, wood and ceremics.
HOW TEMPERATURE AFFECT OBJECTS.
Explain the next chages caused by the heat:
- Temperature increase.
- Dilatation.
- Change of state.
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