Physics Facts

Physics tuition classes in Miracle Learning Centre are easy to understand and help you to improve in your grades. If you do not understand Physics, you must definitely attend the Physics tuition class at Miracle Learning Centre. Let us learn about some Physics facts in this Physics tuition lesson.

Things can travel faster than light, but light doesn’t always travel very fast.
The speed of light in a vacuum is a constant of 300,000km per second. However, light does not always travel through a vacuum. In water, for example, photons travel at around three-quarters that speed. In nuclear reactors, some particles are forced up to very high speeds, often within a fraction of the speed of light. If they are passing through an insulating medium that slows light down, they can actually travel faster than the light around them. When this happens, they cause a blue glow, known as “Cherenkov radiation”, which is comparable to a sonic boom but with light. This is why nuclear reactors glow in the dark.

The faster you move, the heavier you get.
If you run really fast, you gain weight momentarily, and only a tiny amount. Light speed is the speed limit of the universe. So if something is travelling close to the speed of light, and you give it a push, it can’t go very much faster. But you’ve given it extra energy, and that energy has to go somewhere. Where it goes is mass. According to relativity, mass and energy are equivalent. So the more energy you put in, the greater the mass becomes. Once you reach an appreciable fraction of the speed of light, your mass starts to increase rapidly.

All objects fall at the same speed.
You would be forgiven for assuming that heavier objects fall faster than lighter ones—it sounds like common sense and you know for a fact that a bowling ball drops more quickly than a feather. And this is true, but it has nothing to do with gravity—the only reason this occurs is because the earth’s atmosphere provides resistance. In reality, gravity works the same on all objects, regardless of their mass. What this means is that if you repeated the feather/bowling ball experiment on the moon (which has no atmosphere), they would hit the ground at the exact same time.

Miracle Learning Centre would like to bring you more articles on Physics tuition concepts. We hope you have understood what some Physics facts are. Do come to Miracle Learning Centre for more Physics tuition lessons to learn more about Physics.

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