Conduction, Convection, and Radiation

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