Unit 7!
Unit 7 focuses on momentum. Momentum is the force or speed of movement and is the product of an object's mass and velocity. Something important about momentum is that it must be conserved. Important equations we learned are...
Momentum = mass x velocity
Change in momentum (Impulse) = average force x change in time
Momentum (in) = Momentum (out)
(Mass1 x initial velocity1) + (Mass2 x initial velocity2) = (Mass1 x final velocity1) + (Mass2 x final velocity2 )
Some of these equations are helpful in explaining how to successfully toss water balloons without popping them. The picture above is a picture of me and my friend about to conduct a water balloon toss at her birthday party! When tossing a balloon, the balloon can only take a certain amount of force before popping. So in order to decrease the force, we can increase the time. I noticed that the people who stayed in for a while move their hands with the balloon as it fell into their hands. By doing that, they increase the contact time, decreasing the amount of force being exerted onto the water balloon!
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