Experiment :
1. Take a balloon and blow the balloon.
2. Now note down the size of the balloon.
3. Now press the balloon from mid and again note down the size of the balloon.
Observation : The shape of the balloon have changed.
Conclusion : On applying force, the shape of an object changes.
Creative work : Prepare a toy car according to the figure show below by using a match box, broomsticks and rubber caps, now perform the activities given in the table below and conclude that by applying force, the speed of an object can be increased and decreased.
| S No. |
Activity |
Observation |
| 1 |
To apply force in forward direction by pulling the string of stationary toy car on a plane surface. |
The toy car Changes its state from rest to motion |
| 2 |
To apply force on the moving toy car in the direction of its motion |
The speed of the toy car increase |
| 3 |
To apply force on the moving toy in the opposite direction of its direction of motion |
The speed of the toy car decrease |
