1/18/11 Day 7 TOPIC: Conservation of Momentum Lab OBJECTIVE: I will calculate momentum before and after an elastic collision STARTER: Categorize the elastic and inelastic collisions.
Conservation of Momentum Lab The total momentum of a system before a collision is equal to the total momentum after a collision.
Lab Set up Observe: Observe the track, rubber bands, masses, timer & timer settings, etc. Experimental Question: is the total momentum of the system before the collision the same after the elastic collision? Hypothesis: If the elastic collision occurs …then the momentum of the collision before is equal to the momentum after...
Lab Set up Procedure:… Photogate A is closest to the launch car! Make sure target car is at photogate B
Table I : Collision Data Mass Of Target Car (kg) Rolling Rolling car Before collision Rolling car after collision Target car after collision Photo Gate (s) Speed (m/s) .01/s .102(2) .084(1) .056(0)
Masses Empty Car .056 Kg Car + 1 .084Kg Car + 2 .102Kg Car + 3 .130Kg Marble = .028Kg