Science Project on “Center of Gravity”, Project Experiment Topics on Flight, Motion & Friction for Class 8, 9, 10 and 12 Students.

Center of Gravity

Materials Required:

1. A 12-inch ruler
2. Ten coins
3. A pencil with flat sides
4. A table

Gravity is the attraction, which objects have for each other. Gravity also keeps the planets orbiting in space around the sun and the earth’s gravity also attracts objects to the ground.

Try balancing something on your shoulder and determine at which point the object was resting on your shoulder. Also try and balance a spoon on your finger and determine the balancing point.

If you push the teeth of two forks together, you will see that the new object that you have created can actually balance in midair. To test this, push in a stick through the middle of the two forks and rest it at the middle of a coffee cup. You will see the phenomenon for yourself !

If a long object like a pole, with equivalent weights on both sides is made to balance, the balancing point should be in the middle. However, the question remains that how do you determine the balancing point of such a pole, if both sides have unequal weight?

Use a pencil with flat sides, so as to prevent it from rolling and place it on a table. Place a ruler on it, like a see-saw and try and balance it on the pencil.

Now place around 5 small coins on one side and try and figure out, where you should place another three small coins on the ruler, so as to keep the balance.

Keep adjusting your coins on the ruler and figure out which would be the best position to keep them balanced. You can even try this out with your friends. Someone will surely get the right combination.