1. A bicycle dynamo generates Direct Current.   True   False   2. The high pitched cries of a bat are above human hearing.   True   False   3. When a spring is released, its potential energy is converted to   Kinetic Energy   Electrical Energy   Magnetic Energy   Light Energy   Hint Half-n-half Clue   4. The presence of charge on a substance can be confirmed by a   Ammeter   Thermometer   Electrodes   Gold Leaf Electroscope   Half-n-half Clue   5. The SI unit of electric current is   Ohm   Ampere   Farad   Mho    Half-n-half Clue   6. A freely suspended magnet always aligns itself along the   East South Axis   North South Axis   East West Axis   West South Axis   Half-n-half Clue   7. By which of the following methods does heat transfer not take place?   Convection   Refraction   Radiation   Conduction   Half-n-half Clue