Thermometer experiment. Chapter IV review
Answers are for parents and teachers.
1
Equal masses of water at 80 °C and 40 °C are mixed. About how many °C?
60
2
A scale has 10 divisions between 0 °C and 50 °C. Division value in °C?
5
3
Write five key concepts of Chapter IV with definitions.
Sample: temperature, thermometer, convection, radiation, thermal expansion.
4
Why can two layers of clothing be warmer than one thick one?
The air between layers conducts heat poorly.
5
Find one example at home of each of the three kinds of heat transfer.
Sample: spoon handle — conduction; air above a heater — convection; sunlight — radiation.