physical science lessons for grade 11 FINALS 4.pptx

physics

1. Lesson 4: Newton’s Law in Pulley’s System

2. Newton’s Three Laws of Motion 1. First law of Motion: Law of Inertia -states that “ A body at rest stays at rest or a body in motion continues to move at a constant velocity along a straight line unless acted upon by a an unbalanced force”.

3. Newton’s Three Laws of Motion 2. Second law of Motion: Law of Acceleration -states that “ The acceleration of a body is directly proportional to the net force and inversely proportional to its mass”. a=  

4. Newton’s Three Laws of Motion 3 . Third Law of Motion: Law of Action-Reaction -states that “ For every action, there is always an equal but opposite reaction”.

5. Activity # 3 Essay: (3 points each) Direction: Answer the following questions using 5-10 sentences 1. In your own words, how did Aristotle describes motion? ________________________________________ 2. Based on your understanding, what are the important points of Galileo’s description of motion? ________________________________________ 3. Compare and contrast the opposing ideas of Aristotle and Galileo. _________________________________________

6. 4 . Based on your understanding, which do you think will fall faster, a rock or a feather? __________________________________ 5. What do you think causes the curved or parabolic path of all objects being thrown upward? __________________________________