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A scalar quantity has magnitude only - for example distance.A vector has magnitude and direction - for example gravity (acceleration tow...

Forced vibration:

The object oscillating will vibrate upwards and downwards with the same frequency the driving oscillation is at. The amplitude of the v...

Speed is a scalar quantity, meaning that it only has a magnitude. Acceleration is a vector quantity, meaning that it has a magnitude and a direction. Velocity is the vector quantity equivalent of speed...

The difference is a bit subtle. Velocity is speed in a particular direction.

So, for example, a car travelling at 50 miles per hour round a bend is travelling at constant speed. Its direc...

The star begins as a stellar nebulae. This is a dense cloud of gas and dust containing hydrogen and helium. As it is under a large amount of gravitational pressure, this nebula will then collapse under...