- we began class by going over the Which Law is it? worksheet
- students showed a strong grasp of Newton's three laws of motion
- after going over the worksheet I had the students watch a short flash animation clip that further reviewed the three laws of motion along with Newton's life and contributions to society
Newton's Laws Interactive
- at the end of the interactive clip there was a short 10 question that I had the students take
- the first 9 questions I counted and question 10 was a bonus question
- we went over the quiz and the class noticed that they all did very very well!
- after the quiz we began to talk about the last new material of this unit ... momentum
- I asked the students if anybody in the class had heard the word momentum before
- I then asked the class if anybody was willing to try and define the word momentum, or explain the concept
- some of the boys brought up that they hear the word momentum when they are watching sports games
- we then had a short discussion that involved relating momentum in a sports setting to what momentum means in physics
- I provided the students with the formula ... momentum = mass x velocity
- something that is not moving has no momentum
- faster moving objects have more momentum than slower moving objects
- larger objects with more mass have more momentum than smaller objects with little mass
- I then used tennis balls and billiard balls to explain to the students that momentum is conserved before and after a collision
- if there are two balls about to collide and ball A has a momentum of 10 kg m/s and ball B is stationary with a momentum of 0 kg m/s they will swap their momentum's after the collision because momentum has to be conserved
Homework
- finish the Review Packet
Science News
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