GCSE Science Revision

Using a ripple tank to measure the speed, wavelength and frequency of waves * a ripple tank is a shallow glass tank which vibrates - producing water waves at a given frequency (you can

Crude oil * crude oil is a mixture of different hydrocarbons * crude oil can be burnt to produce energy but it is a finite resource * these include short hydrocarbons and long hydrocarbons * short hydrocarbons

* average speed = total distance/ time taken * acceleration = change in speed/ time taken