Moving Energy Uphill Materials Required: A ruler Dominoes Have you ever wondered whether a wave of energy can move in an upward direction? It’s really very easy to find out. Take a long ruler and place two dominoes under it at one end, so that it can facilitate as a ramp. Now prop up a domino on the ramp, that you have constructed and see if it can stand up on...

Lifting Power Materials Required: Paper towel tubes Pencils with flat sides Rulers A hair dryer A table Scissors Two books of equal thickness The design of an airplane wing has a particular reason. The curve of the wing at the top causes the air travelling over it to travel a farther distance than the air that moves from below the wing. This mechanism makes the air move faster, causing a drop...

Gravitational Pull Materials Required: Modelling clay Cardboard Four rulers Two marbles of equal size Two marbles of different size A table An uncarpeted floor under the table Though the force of gravity has the same force for everything on the earth’s surface, have you ever imagined as to what would happen, if you were to drop two marbles at the same time, from the same height? Would there be any difference...

Flying Upward Materials Required: A flagpole A long or oblong balloon Two small paper clips Adhesive tape Some string A partner Isaac Newton had proposed a law in 1687, which stated that “for every action there is an equal and opposite reaction.” This law can be very easily explained. If you and your friend are standing at a point and your friend comes forward and pushes you, you will surely move...

Energy in Motion Materials Required: Marbles Two rulers Two books A rug A piece of paper When objects are in motion, they possess a kind of energy in them, which is termed as Kinetic Energy. Since all kinds of energy are transferable, similarly, when a moving object touches another object, then the Kinetic Energy is transferred from the first object to the second. For this experiment, take a rug and place...

Energy in Motion Materials Required: A ping-pong ball Masking tape Empty paper towel roll Measuring tape Rubber bands Board of measurement, 4 inches wide and 1 inch long Two nails A hammer Paper and pencil When a particular substance is stretched, it contains potential energy, which is the energy ready to do work. Once you let it go, this potential energy is converted into kinetic energy. To determine that a substance...

Center of Gravity Materials Required: A 12-inch ruler Ten coins A pencil with flat sides 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...

Air Friction Materials Required: Two-inch square cloth Some thread Two small metal nuts of the same size Modelling clay Scissors Proximity to a place of height. You skin your knee, when you run and fall due to the force of gravity. If you are at a higher position, then you fall faster. Parachutes can save a pilot’s life, if his plane is in trouble. A parachute uses the mechanism of air...