121 Plus 9 Physics Experiments

Can you imagine life without a TV remote- control? Terrible! But believe it or not, prior to the 1970s most television-sets did not have remote controls. In order to change the channel, a person had to stand up, walk to the TV-set, and manually turn the knob.Things Required:TV with a remote controlMirrorDirections:Switch on the television-set. […]

The purpose of this exciting experiment is to discover that the flow of electrons generates heat.Things Required:1 AA batteryAluminium foilScissorsRulerDirections:Cut a strip from the aluminium foil, 6 inches × 1 in. (15 cm × 2.5 cm). Fold the strip of foil in half lengthwise twice to form a thin 6-inches (15-cm) strip that will be

So far you’ve observed what happens when the objects of the same charge are brought together. The two negative balloons repel each other. The positive nylon strips repel each other. But what happens when a negative balloon and a positive strip are brought near each other? Find out in this easy experiment.Things Required:Nylon strip1-foot threadTapeBalloonWoolPlastic

Does shooting a billiard ball against the side bumper of a pool table has same effect as a light ray? Find out in this experiment.Things Required:TorchSmall mirrorA rulerTapeDirections:Use tape to place a set of marks along one wall of a hallway or narrow room. Place the first mark 1 foot above the floor. Place the

Do all materials conduct electricity? Let’s find out in this simple experimentThings Required:Spring-type clothespin1 D-cell batteryAluminium foilTorch bulbMasking tapeScissorsTesting materials: rubber band, paper, coins rulerDirections:Cut a rectangle of aluminium foil, 24 inches × 12 inches (60 cm × 30 cm). Fold the aluminium piece in half lengthwise five times to form a thin strip 24

From the previous experiment, we made negative charges transfer onto a balloon when it was rubbed with wool. Because the balloon now has more negative charges than positive charges, it has a net negative charge. This type of “charging” is called contact charging.Contact charging can also produce objects with a positive charge. For an object

Most of the light that strikes a mirrored surface is not absorbed by the material. Instead, this light bounces off the reflective surface. Since the mirror is flat, the light rays are not randomly scattered. Instead, they travel together side-by-side as a reflected beam. The beam keeps travelling on a straight path until it strikes

We all have tube lights everywhere around us, in our homes, schools, etc. But have you ever wondered how a fluorescent tube (light bulb) works.Things Required:BalloonFluorescent tubeDirections:Inflate and tie the balloon. Wash the outside of the fluorescent tube and thoroughly dry. In a dark room, place one end of the tube against the floor. Hold

Things Required:BalloonA piece of wool or feltDirections:Inflate a balloon and stroke it with a piece of wool or felt. If you don’t have any fabric material, you can stroke the balloon against your hair. Place the balloon against the wall. What happens? How long will the balloon cling to the wall? Recharge the balloon and

In this experiment, we will make a simple device that produces side-by-side light beams. By observing the behaviour of these beams, you’ll be able to learn more about the properties of light.Things Required:Index cardCombPair of scissorsTapeTorchMirrorClay Directions:To construct a “ray maker,” cut a rectangular opening in the centre of the long edge of an index