Questions titled classwork review was given as the class started. It involved material which was covered in class regarding forces and types of forces. Using a small toy car, the concept of balanced forces and unbalanced forces was presented. The forces present on the car at rest were found to be gravity and the normal force. The direction and relative magnitude of each was listed. The definition of balanced forces was elicited from the the sketch of the car at rest and the vectors used to show the forces. The car was accelerated by applying a force (push) to the rear of the car. The concept of an unbalanced force was elicited, and the question as to why the car eventually stopped was presented. The force of friction was found to be the force opposite to the motion, causing the eventual stopping of the car. How far would the car travel if the surface was friction free was the next question, the answer was eventually found out.