Cognitive scientists have shown that physics students come into physics class with a set of beliefs that they are unwilling (or not easily willing) to discard despite evidence to the contrary. These beliefs about motion (known as misconceptions) hinder further learning.
Ask the class to state Newton’s third law. You’ll get the predictable answer: Every action has an equal and opposite reaction.
Ask them, “What does it mean?”, and “Give me an example?” and the discussion is likely to reveal a number of misconceptions.
For example, watch this video
Read the explanation and video in Wikipedia : Newton’s third law
