Ellastic Collisions(Things that don’t go squish!)

To start, lets review- In an Elastic collision for a closed system, the momentum that exist before the collision is the same that exist after the collision.

True False

Good job! Your right, You now are at a 2 level for elastic collisions!For an elastic collision, such as a vase breaking, or a rubber ball bouncing, the total momentum that existed before it say, hit a wall, is the same that exist after the collision

Ellastic collisions

Elastic collisions use the formula for conservation of energy

Mv1+mv2=mv1+mv2

You know this formula, so lets use it and BREAK SOMETHING!

Ellastic collisions

Mass vase 1kg Mass ball .5 kg Velocity ball 20 m/s initially Velocity ball 15 m/s after What is the momentum of the pieces of the

vase?

Elastic collision

1.5 2.5 3.5 4.0 4.35 4.5

Good job again. You have a 3 rating so far with elastic collisions!

Explain the following in your notes for discussion later. Does an objects internal energy relate to momentum?

Discuss both sides of the question in 2 paragraphs. In the first, argue against the above question, in the second, argue for it. Which argument seems more valid to you?

An dad throws his daughter off his balcony and expects her to bounce off a perfectly elastic trampoline back into his arms.

Agree with the statement Disagree with the statement

K- Now, to solve the worksheets were going to knock out today, find a person with a 2 or lower score. Complete the worksheet with them in pairs.

Your at a 4!