Conduction, Convection, and Radiation
Quiz
Which two of these statements is true about thermal radiation?
- It travels at 330 m/s
- It can be called infra red radiation
- It is given off by hot objects
- It is can be called ultra-violet radiation.
Which one of these surfaces absorbs thermal radiation the best?
- Dull black surface
- Shiny black surface
- Dull white surface
- Shiny silver surface.
Which one of these statements is true about conduction?
- It can only happen in metals.
- It only happens in liquids and gases.
- Metals are bad conductors.
- A bad conductor is a good insulator.
The rising and falling of peas in a pan of boiling water is an example of:
- Conduction
- Convection
- Radiation
- Internal energy.
Water is a good material to cool hot machines like car engines. This is because:
- it is a good conductor of heat.
- it can lubricate the hot moving parts.
- it boils at 100 degrees Celsius
- it takes a lot of heat energy to raise the temperature by a small amount.