|Maths||A Level||£20 /hr|
|Physics||A Level||£20 /hr|
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Maryam (Student) September 14 2016
Speed is a scalar, which means the car's speed will be a value that has a magnitude (number) only. Velocity is a vector, which means that the car's velocity will be a value that has both magnitude and direction. In this case, the car is changing its direction of travel but the magnitude of the speed stays the same.see more
When light travels into a medium with a higher refractive index than the one it was previously travelling in, it bends towards the normal.