Introduction:-
You can use two ordinary magnets to make a model car move. It works because two magnets can either attract or repel each other when they are brought close together. The way in which they move depends on which ends of the magnets are facing each other.
1. Firmly tape one of the magnets to the inside of the matchbox tray.
2. Cut the straw in two pieces. Make each piece the same size as the matchbox.
3. Tape the pieces of straw to the outside part of the matchbox. Slide in the tray
4. Using the compasses draw four circles on the card. Carefully cut them out.
5.Push the toothpicks through the straws. Fix the card circles to them.
6.Place the matchbox car on a table top. Bring the other magnet close. The car rolls towards or away from the magnet.
B.S.Bisht