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• Bulb power = 6.0W - Energy provided = 480J - Use equation P = E / t (Power = energy/time) where power is in watts, energy is in joules, and time is in seconds - Rearrange the equation to give t = E ...

As some energy is lost as heat/sound meaning the transformer is not 100% efficient

When you earth a charged object you're creating a physical path between this object and the ground so it loses its charge. To begin with the object is charged due to having extra or fewer free electrons. ...

(1) In the drink, all six faces are in contact with the liquid (or) On the kitchen surface, only one of the faces is in contact with a solid and the rest are in contact with the air (or) On the kitchen su...

It is difficult to remember formulas, especially when they are similar and easy to confuse. Some methods of remembering the many formulas needed for physics and maths are to recite them, to do a lot of pr...