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Why is the centripetal force necessary for circular motion?

The centripetal force can be thought of as the force that causes circular motion.

When an object moves in a circle a force must always act on it, even when it moves at a constant speed. T...

Answered by James B. Physics tutor
21365 Views

Explain what simple harmonic motion means?

Simple harmonic motion describes the motion of an object which has an acceleration that is directly proportional to its displacement from the equilibrium point and when the accelerations acts in the oppos...

Answered by Amilah C. Physics tutor
2837 Views

A sample of pure gold has a density of 19300 kgm^-3. If the density of a gold nucleus is 1.47x10^17Kgm^-3, discuss what this implies about the structure of the gold atom. [4 marks]

To gain all of the marks, 4 different points must be made. To begin, state what is obvious:

The density of the gold nucleus is much greater than the density of the gold atom.

...
Answered by Rebecca L. Physics tutor
9546 Views

What is the difference between a scalar and a vector quantity?

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

Answered by Emma W. Physics tutor
12547 Views

Explain the difference between forced vibration and resonance in an oscillating object.

Forced vibration:

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

Answered by Matthew P. Physics tutor
27138 Views

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