1. Old car vs new car http://www.youtube.com/watch?v=fPF4fBGN K0U http://www.youtube.com/watch?v=fPF4fBGN K0U

3. Activity-Water Balloon Toss 1)Place both partners name at top of index card 2)Copy onto the index card the following and fill in the blanks-

4. Water balloon toss Today we will demonstrate the concept of I_______. The formula is: ___________ The definition is: A change in ______ We want to d_________ momentum by decreasing the force. We will extend the f_____ over a ______ period of time Examples of this are a) Air b _____________ in cars b) Crumple z________ in cars c) Break away u _________ poles on highways d) and crash c________ These devices decrease injury by absorbing K_________ energy To demonstrate I________ with a water balloon I will c________ the balloon when I catch it. Meaning I will c______ it for about a _________ before I stop its m______________ Impulse Impulse= (force)(time) Momentum Decrease Force long Air bags in cars zones Utility cushions Kinetic Impulse Cradle Carry, meter momentum

5. Instructions Fill one balloon ½ way full Carry carefully to field You will start with a grade of 70, after each toss your grade increases by 10 points, but after each toss you separate further apart.