I. Select the correct option: 1. In a lever of class I [Recall] o (a) the fulcrum lies between the load and the effort o (b) the load lies between the fulcrum and the effort o (c) the effort lies between the load and the fulcrum o (d) all of the above are correct o Answer: (a) 2. Which statement is not true for a simple machine? [Understanding] o (a) It makes work easy o (b) It multiplies force o (c) It saves energy o (d) It saves time o Answer: (c) (Note: In practical machines, some energy is always wasted due to friction ). 3. A beam balance is a lever of [Application] o (a) class I o (b) class II o (c) class III o ...