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ex Baldantoni Period 4 ** TPJ **

Today in class our objectives were to do a homework check, review or homework, go over the daily question (How would Galileo or Newton explain a falling apple?), go over different types of forces (normal, tension, friction, gravity), and do our Stretching for an answer Activity lab. One assignment we handed in today were the Law of Inertia questions we had to answer which had a lot to do with how Newton’s first law relates with mass and acceleration. Another handout we received was the 4 types of forces handout which gave each force a description and example. One demonstration we were shown today was a drawing of a car turning left. As the car turned left the person’s body kept going straight because of the Law of Inertia.



Another demonstration we were shown was a wooden car with a ping pong ball sitting on top of it. When the car was moving at a constant speed it was brought to an abrupt stop and the ping pong ball kept moving forward proving that objects in motion at a constant speed want to stay in the same place. Another example of this was the Styrofoam ice cream ball in the launching ice cream cone. When someone walked forwards arm extended holding the ice cream cone and launched the ball while still moving the ball would land very close to its original spot in the cone proving Newton’s first law. For our lab the class got a wooden car with three wheels, a number of weights ranging from five grams to one-thousand, and a rubber band. We attached a rubber band to one of the weights and measured how many Newton’s of force were created when pushed away giving us an example of Tension force.