Check carefully whether a graph is a speed-time graph or a distance-time graph. On true speed–time graphs, the speed has only positive values. On velocity–time graphs the velocity can be negative. Image Tachographs are instruments that are put in lorry cabs to check that the lorry h...
A series of free GCSE/IGCSE Physics Notes and Lessons. Speed Describe the difference between distance and displacement. What is meant by speed. How to calculate speed? How to calculate distance travelled? Velocity Describe what is meant by velocity? Explain why velocity is a vector quantity. ...
Physics (Energy transfers by heating) GCSE 2023 28 terms Lizzie_LanningPreview Practice questions for this set Learn 1 / 7 Study using Learn Speed = Distance/Time Select the correct term 1 Which TWO of the following are vectors?SpeedVelocityDistanceDisplacement 2 How do you calculate change in ...
Wavelength is the distance from one compression to the next in a sound wave. The frequency is how many wavelengths pass by is a set amount of time. These two elements always exist with sound waves, so they are a vital part of determining the speed, or velocity, of sound. In order to...