Search over 10,000 free study notes

After the main sequence period, the amount of hydrogen in the stars core decreases causing the star to fuse helium nuclei instead. (Further explanation for clarification)This releases a lot of energy caus...

Advantage- No CO2 emissions produced by nuclear power stations as they do not combust fuel to produce energy.Disadvantage- Nuclear power stations produce radioactive waste which is difficult and expensive...

The relative speed of the second car, with respect to the first car is 6 m/s. This is because they are both travelling in the same direction, but the second car is moving 6 m/s faster. That means, if we w...

Most Kids Hate Learning GCSE Energy Names

Magnetic

Kinetic

Heat

Light 

Gravitational

Chemical

Sound

It's useful to start from the density formula and see what we need to find. The density is given by (rho) = m/V

We know the volume V, so we only need to find the mass m.

We ...