Ryan+Donovan+11-6

Today we worked on a lab for the first 5 minutes of class. Than we had the daily question. 1) Why does Newton's 2nd law state that a Net Force causes an acceleration? Why not just a force? It is just F=ma, and there is no other forcing acting upon in.  Example would be friction acting upon it, instead of the total force which accounts for everything acting upon it. 2) if the acceleration triples for a constant amount of Net Force, how did the mass of the object change? The mass of the object became 3 times as light as before because you have to balance out the mass and the force. After the daily question we talked about Newton's Second law which is EF=ma. Stands for Force=mass*acceleration. His law also says when an unbalanced force acts on a particle, the particle accelerates such that the product of the mass and the acceleration of the particle equal the unbalanced force. So if you have a negative force than you would have a negative acceleration. And if you have a positive force than you have a positive acceleration. After explaining Newton's law Mr. Manning did a lab infront of the class and showed that if you apply the same amount of force on two different objects of different weight the lighter one will accelerate faster. He than gave an equation 1N=1kg*m/s2. And you always have to keep kg and acceleration equal to one. So if there is 2kg than the acceleration is .5m/s2. At the end of class we went over a packet we got at the beginning and did the first 4 quesitons. The first one was: Which of the following has the greatest inertia? A) 2kg, V=100m/s, B) 4kg, V= 2m/s, C) 2kg, V=20m/s, D) 6kg, V=0m/s. The correct answer is D because velocity doesnt matter it is the heaviest weight that has the most inertia.