7.2 Thermal insulators Flashcards
1
Q
Background information:
A
Insulating a hot object reduces the rate of heat loss to the surroundings. In this practical lesson, you will insulate a container using an insulating material and record the temperature over time. You will then vary the number of insulation layers to determine the relationship between insulation thickness and energy transfer
2
Q
What is the independent variable?
A
Number of layers of insulating material
3
Q
What is the dependent variable?
A
Temperature change of water
4
Q
What are the control variables?
A
Amount of water in each beaker, starting temperature of the water in each beaker
5
Q
What equipment is needed for the experiment?
A
- Boiling water
- Thermometer
- Bubble wrap
- 5 cans
- Foam
