Physics Blogger

Rule: When naming a force, you must describe the object giving the force and the object receiving the force. Original statement: Force an object to accelerate, a force needs to be applied. Second statement: In order for an object to accelerate, an unequal force needs to be applied. If an object is either moving in constant motion or is not moving at all, then the force diagram is 2 equivalent vectors with force earth pointing down and force normal (ground, floor) is pointing perpendicular from the plane. If the object is accelerating, then there is an odd number of forces (ex. 2 equal forces and a third force) or a pair of forces is unequal. CORRECTIONS: (UNIT 3 TEST) *Do not forget fence method! example: 5secs in motion= 6 dots and 5 vectors *Acc vectors are placed on the same dot *Dots on motion map can equal more than 1 unit of time. It can be each dot equals 2 secs too * Use "midpoint method"(the notes are in notebook!) on curved X vs T graph to find instan

Our new topic in Physics is acceleration (speeding up or slowing down). With the motion sensor, the class was able to see what position, velocity and acceleration graphs look like in certain situations. 1. When an object accelerates (speeds up) forward from the reference point. 2. When an object accelerates (slows down) backward towards the reference point. 3. When an object accelerates (slows down) forward from the reference point. 4. When an object accelerates (speeds up) backward towards the reference point. The Situations: Velocity           Acceleration 1.   +                       +                    Speeding up forward 2.   -                       +                    Slowing down backward 3.   +                       -                    Slowing down forward 4.   -                       +                    Speeding up backward Example Data: 1. 2. 3.   4. Continue: If we were to continue the velocity graphs in situation 2 and 3, it wou