10 Issues to Avoid When Solving Physics Problems
If you get stumped working on physics formulas, take a deep breath, and recheck your work. Go through these common physicsproblem issues to make sure you have avoided them:

Mixing units

Expressing the answer in the wrong units

Swapping radians and degrees

Getting sines and cosines mixed up

Failing to treat vectors as vectors

Neglecting latent heat

Getting refraction angles wrong

Getting the signs wrong in Kirchhoff’s loops

Adding resistors incorrectly

Getting ray diagrams wrong