Choose the BEST answer to the following: Heat is simply another word for (a) temperature. (b) internal energy. (c) internal energy that flows from hot to cold. (d) radiant energy.

You are cold, so you cover yourself in a blanket. A half hour later, you feel much warmer. Explain in detail where the heat came from, and how the blanket helped.

What is a calorimeter? Name the material of which it is made of. Give two reasons for using the material stated by you.

Your car’s radiator is made of steel and is filled with coolant. You fill the radiator to the very top with coolant, then drive off without remembering to replace the cap. As the coolant and steel radiator heats up, will the level of coolant drop or rise and overflow? why? what is a radiator is and what purpose does it serves in a car?  Here is a good start: https://youtu.be/y5p31F_dVJU