II. TRUE or FALSE. Write TRUE if the statement is true and FALSE if otherwise. Write your answer on the space provided before the item. 21. Displacement = Distance + Direction 22. Distance always follows a straight line. 23. Displacement is the shortest distance between the initial position and the final position of an object. 24. Mirror is a good reflector of light than wood. 25. The higher the frequency of the light, the longer its wavelength. 26. Thermometer is a device used to measure temperature. 27. Convection is the transfer of heat energy by direct contact. 28. Conduction is the transfer of energy with the help of electromagnetic waves. 29. Heat is the total energy of molecular motion in a substance. 30. Convection is the transfer of heat by the circulation or movement of the heated parts of a liquid or gas.​