Month: January 2020

Activity 7.3:Aim: To carry out a simulation of lightning formation by using the Van de Graaff generator.Apparatus: Van de Graaff generatorInstruction1. Switch on the Van de Graaff generator.2. After a few minutes, move the metal sphere closer to the dome and record your observation.Questions1. What is your observation in this activity?2. What will happen if … Read more

Activity 7.2:Aim: To test the existence of electrostatic charges on certain materials.Materials: Balloon, pieces of shredded paper and stream of running tap waterApparatus: Polythene rod, cellulose acetate strip and woollen clothInstruction1. Rub a polythene rod with a woollen cloth.2. Hold the rod close to pieces of shredded paper (Photograph 7.3) and record your observation.3. Repeat … Read more