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A digital guide to the process of problem solving which highlights strengths and weaknesses, explains mistakes, reminds you about definitions and helps to clarify concepts. Check out our Introductory network to see it in action.
Before we can model motion we need to define the quantities that we are going to use, once that has been done we can investigate how they are related.
Displacement as a vector, adding perpendicular displacements using pythagorus
If your speed is constant how can you be accelerating. When you move in a circle it feels like you are being thrown out so how come the force is towards the centre? If too many people join me on a roller coaster will we all fall to our death
In an attempt to simplify we can consider all bodies to be a like a small ball with forces acting at the centre. Alternatively we could just consider the case of a small ball and ignore all other possibilities.
Wave quantities wave propagation reflection refraction interference diffraction