Consider the following statements:
1. Heat is a form of energy.
2. Heat flows from low temperature to high temperature.
3. Heat flows from high temperature to low temperature.
Which of the above statement(s) is/are correct?

Q. Which of the following statements about a refrigerator is/are correct?
1.It converts electrical energy into heat energy.
2.It converts electrical energy into mechanical energy.
3.It transfers heat from a high temperature to a low temperature.
4.It transfers heat from a low temperature to a high temperature.

Q. Write true or false for given statement :
Heat flows from a body at a high temperature to a body at a low temperature when they are kept in contact.

Q. Statement 1: Heat always flows from a body with higher heat energy to a body with lower heat energy.

Statement 2: Heat always flows from a body with a higher temperature to a body with a lower temperature.

Q. Assertion :When a hot substance is mixed with a cold substance, then the temperature of hot substance gradually decreases Reason: Heat always flows from a body of high temperature to the body of low temperature

Q. Which of the following statements is/are correct?

1. Heat flows from the cold body to the hot body.
2. Temperature is a measure of hotness or coldness.
3. Thermometer is used to measure temperature.