Heat, temperature and solar radiation

How many °K has 15°C?

• 59 °K

• 288.15 °K

• 288.15 °C

• 474.67 °K

The cup of coffee has a temperature of 80°C and that the surroundings has a temperature of 26°C. This is INCORRECT:

• energy that is lost by the coffee and the mug is being transferred to the colder surroundings (air)

• Coffee and mug lower its temperature (is a sign that kinetic energy of its particles is decreasing)

• Heat transfer is from a colder object to a warmer object

... does not occur in space because there is no gravity

• Conduction

• Radiation

• Convection

It happens when heat moves as energy waves

• Conduction

• Convection

• Radiation

This represents a good example of:

• Conduction

• Convection

• Radiation

Heat is a form of energy, and when it comes into contact with matter it makes the atoms and molecules move

• Conduction

• Convection

• Radiation

when a substance that can flow, like water or air is heated in the presence of gravity. The bottom of the air or water becomes denser because it is pulled down and also pushed down by the weight of the molecules on top of it.

• Conduction

• Convection

• Radiation

This is an example of:

• Conduction

• Convection

• Radiation

Heat is a form of energy that comes from other forms of energy

• TRUE

• FALSE

They are energies that can each cause a substance to heat up by increasing the speed of its molecules.

• Light, electrical, mechanical, chemical, nuclear, sound and thermal

• Electrical, mechanical, chemical, nuclear, sound and thermal

• Light, electrical, mechanical, chemical, nuclear and sound