Available Answers

1. 1.

   Tick those options which you can do to a piece of cloth without using any tool.

   Fold, Cut into equal size pieces, Make holes in it, Tear, Pressing into wrinkles

2. 2.

   Identify the kind of simple machines on which the following are based.

   

3. 3.

   Choose the correct option. (MCQs)

   1. A pulley helps to
      1. push load
      2. lift load
      3. open things
      4. cut things
   2. Which action is not true of levers?
      1. Move weights
      2. Lift weights
      3. Open lids/caps
      4. Expand things
   3. which among the following is an example of a wedge?
      1. Door knob
      2. Spoon
      3. Knife
      4. Ear studs
4. 4.

   Change the underlined words to correct the given statements.

   1. A pulley is made by two inclined planes joined together.
   2. Pen is a simple machine.
   3. A bottle opener is a wedge.
   4. An axe is a pulley.
5. 5.

   Which simple machine principle is used to do the following?

   1. Using a knife to open a tin ___________.
   2. Using a machine to lift cars ___________.
   3. Using hospital ramps to push up wheelchairs ___________.
   4. Driving on the winding roads of the hills ___________.
6. 6.

   What is a machine?