- Speed- how fast something is going(m/s-distance divided by time)
- Average speed-how fast you covered a certain distance
- Velocity- speed and direction.(m/s + direction going)
- Acceleration-the process of speeding up(m/s2)
- Negative acceleration-the process of slowing down(-m/s2)
- Mass-How much matter is in an object(g, kg)
- Inertia-the resistance to stop an object
- Momentum-mass times velocity of an object the measure of an objects resistance to stopping(p=kg*m/s)
- Displacement-the actual distance you cover from one point to another
- Distance-the actual distance of point
- Law of Conservation of Momentum-the total momentum of objects that collide together is the same before and after they collide
Questions-examples-
- The distance ways-constant, different directions, deceleration and acceleration.
- A car travels 10km north, 5 km east, 15km south, then 5km north. What is the distance traveled.-35km. What is the displacement.-k=5km east
- An Object's velocity chanves from 30 m/s-23m/s in 3 seconds. What is the acceleration? (23m/s-30m/s/3s= -2 1/2 m/s2)
- A 5kg object moving at 20m/s collides with an object that is 10kg moving at 5m/s. They stick together and move off. What is they're final velocity? (5kg*20m/s+10kg*5m/s=>100kg*m/s+50kg*m/s divide by total weight=>10m/s
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