Organize your study space. ...
Use flow charts and diagrams. ...
Practice on old exams. ...
Explain your answers to others. ...
Organize study groups with friends. ...
Take regular breaks. ...
Snack on brain food. ...
Plan your exam day.
Just plain study..
Electronic signals are converted into a 'ray of light' -
I'm not sure about the magnitude, but the direction of the normal force is upward.
