Grade 9 Physics – Heat and Energy One Word Questions with Answers

HEAT AND ENERGY – ONE WORD (FILL UPS)

1.​ Heat flows from ______ object to cold object.
Answer: Hot

2.​ The SI unit of heat energy is ______.
Answer: Joule

3.​ The SI unit of temperature is ______.
Answer: Kelvin

4.​ The instrument used to measure temperature is ______.
Answer: Thermometer

5.​ Heat is a form of ______.
Answer: Energy

6.​ The transfer of heat without medium is called ______.
Answer: Radiation

7.​ Heat transfer through solids is called ______.
Answer: Conduction

8.​ Heat transfer in liquids and gases is called ______.
Answer: Convection

9.​ Water has maximum density at ______ °C.
Answer: 4

10.​ The abnormal expansion of water is called ______ expansion.
Answer: Anomalous

11.​ Ice is ______ than water.
Answer: Lighter