Unit 7 Blog post #1

Today, the first day of the 2nd semester, we talked about unit 7. Unit 7 is about momentum. Momentum is mass times velocity. We use a type of P for the symbol of momentum. The unit for momentum is kilograms meters per second. Momentum is also a vector quantity. An important law we learned for momentum is the Law of Conservation of P. The law states "In a closed system, momentum of a system is always conserved." Momentum is also in force. Force equals change in momentum over change in time or change in momentum equals average force times change in time. Change in time times average force also equals impulse. Impulse is something that changes the momentum in an object.

This is a picture of Jacob, Gio and I working on our lab activity. This lab we tested the momentum of objects when they collided with each other.