Small pieces of paper (about 2 cm length and 2 cm breadth)
Measuring tape
Method
Wrap the pieces of paper into a cylinder-like form and fold them in the middle. It functions as a projectile or bullet for a catapult.
Hook the rubber band into two fingers of one hand (e.g., thumb and forefinger), as shown in the figure.
Hold the paper bullet within two segments of the rubber band and stretch the rubber band.
Ask your friend to measure the extension of the rubber band (distance from the fingers to the paper bullet). Make the distance 4 cm.
Release the paper bullet. It will fly away from the catapult. Measure the distance covered by the paper bullet.
Note down the extension of the rubber band and the distance travelled by the paper bullet.
Now, stretch the rubber band 6 cm and launch the paper bullet. Measure the distance travelled by the bullet. Repeat this for the extension of 8 cm and 10 cm.
S.N.
Extension of rubber band (cm)
Distance travelled by the paper bullet (cm)
1.
4
2.
6
3.
8
4.
10
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