121 Plus 9 Physics Experiments

As in every horror movie, when a person gets bitten by a vampire, he or she will soon transform into one of the undead. People who are then bitten by this new vampire will also become vampires. It’s a deadly chain. From bite to bite, victim to victim, the existence of vampires continues. This experiment […]

Have you ever listening to a recording of your own voice? If so, were you surprised to hear how it sounded? Most people discover that their recorded voice sounds much different from the voice that they hear when they speak. The difference has to do with how the sound is conducted to your ears.When you

Where is the centre of gravity of an object? This is what we are going to reach for in this experiment.Things Required:Paper hole punchPush tackWasherString, 12 in. (30 cm)ScissorsManila folderRulerTack boardDirections:Cut one side of the manila folder into an irregular shape. Punch four randomly spaced holes in the edge of the paper with the paper

By using the compass you will be able to map the invisible magnetic fields in this simple and easy experiment.Things Required:Bar magnetCompassPaperPencilDirections:Place a magnet in the centre of a sheet of paper and carefully trace out its shape. Bar magnets are rectangular.Now place the compass on the same sheet of paper a few inches from

Look at the stage of a rock ‘n’ roll concert and you’re likely to see a wall of speakers. Get close to these speakers and you’ll discover that they are big, really big. Big speakers have a larger vibrating surface than smaller speakers. This larger surface area can transfer vibrations to many more air particles

Purpose to compare the weight of a paper creature with that of paper punches.Things Required:Balance from Experiment Straw See-sawPaper hole puncherIndex cardScissorsPencilDirections:Draw your version of a space creature on half of the index card. Cut out the creature and place it on one of the weighing pans of the balance paper. Cut paper punches from

With the help of this experiment you can construct your own Morse Code Station.Things Required:Four “D” cells in battery holdersTwo torch bulbs in lamp holdersTwo switchesFour brass fastenersPlenty of connecting wire with ends stripped bare of insulationDirections:Assemble two separate Morse code stations that look like this: Next, place the two stations at different locations and

You may have played on a see-saw in parks or gardens. But how does the centre of gravity affect a balance? This is what we are going to find out.Things Required:Straight pinSmall index cardStrawScissors2 wooden blocks of equal height and not as wide as the length of the strawRulerMarking penDirections:Use the ruler to find the

So far, the electricity you’ve generated has been produced by chemical reactions. Although this source of electricity is important yet most of your home is supplied by electricity that has been produced by generators. Generators are large devices that change the energy of spinning magnetic fields into electric current.Things Required:Strong bar magnet10 yards of 24-gauge

Slide your fingers along the neck of a guitar and you’ll feel ridges. These ridges divide the neck into distinct regions called frets. When the string is pressed, its vibrating length is determined by the nearest fret. Frets closest to the sound hole produce the highest notes. Frets farthest from the sound hole produce notes

This experiment is almost magical in nature. The purpose is to demonstrate that the centre of gravity is the balancing point of an object.Things Required:Yardstick (metre stick)Hammer (wooden handled hammer works best)String, 12 inches (30 cm)Directions:Hold the ends of the string together and tie a knot about 2 inches (5 cm) from the ends. Insert

A single cell made of two metals can produce only a small “push” of charge. To increase this push, several cells can be wired together. This arrangement of side-by-side cells forms an electrical device known to scientists as a battery.Things Required:Three copper coinsThree iron washersSteel woolBlotter paperPair of scissorsSaltWaterCurrent meter (assembled in “Simple Multimeter”)Directions:Polish the

Like clarinets and saxophones, flutes are woodwind instruments. The column of air in a flute, however, is not set in motion by a vibrating reed. Instead, the flutist must blow across the opening of the mouthpiece. When the stream of air flows through this hole at the right angle, it produces a soft “whistle”. As

How does shape affect speed? In this experiment we are going to find an easy answer to the above question.Things Required:Card table2 books of equal thickness1 large roll of masking tape2 jar lids, the same sizeMarbleMasking tableHelper Directions:Tilt the card table by placing one book under two of the legs. Place the lid tops together