TRUE OR FALSE

1. Flame can increase the internal energy of water as it slows down the kinetic energy of its molecules.

2. When the temperature of an object increases, the internal energy decreases.

3. Heat can flow from ice to hot coffee.

4. Boiling water has high internal energy than freezing water.

5. When you put a cube of ice on your palm, the heat will flow from the ice to your palm.

6. In measuring body temperature when you have a fever, the heat is flowing from the armpit to the thermometer.

7. To lessen the internal energy of hot coffee in a cup you can put a metal spoon in it to allow the heat flow.

8. Heat excites the kinetic energy of molecules of an object allowing it to have high internal energy.

9. The internal energy of an object depends on the heat present in it.

10. When the heat flow stops between two objects and equalizes their temperature, it is now in their thermal equilibrium. ​