I have a few questions related to my upcoming physics exam for 9th grade physics listed below! These are hard questions and would like some extra input from other people so if you’d like to give them a try please feel free to. Pulled them off my study guide for the exam and I think they are the hardest questions on it so good luck!


Why is gravity not a real force?

Why is light pure energy?

Why is physics scale invariant?

Why is the centrifugal force talked about so much if it's not real?