Newton's three laws.

Define Newton's three laws. Please post your definition of each law. (This is worth 5 points)

1. Newton’s first law of motion: An object at rest will stay at rest, and an object in motion will stay in motion unless a force acts on it.
2. Newton’s second law of motion: Force equals mass times acceleration. The greater the force the greater the acceleration. The greater the mass, the greater the force needed to move the object.
3. Newton’s third law of motion: For every action there is an equal and opposite reaction. Forces are always found in pairs. If the forces are equal in opposite directions, the object will not move. The forces cancel each other out so that the acceleration is zero. What did you observe?
   Which of Newton’s Laws is being demonstrated by this activity? Explain your rationale? 2
4. Hold your right hand next to your right ear with palm up.
5. Place a penny on your elbow.
6. Quickly straighten your arm and catch the penny.
   What did you observe?
   Which of Newton’s Laws is being demonstrated by this activity? Explain your rationale?
   # 3
7. Balance a meter stick on one hand and the ruler on the other hand.
   Which is easier to balance and what did you observe?
   Which of Newton’s Laws is being demonstrated by this activity? Explain your rationale?
   # 4
8. Place a penny near one end of your lab table.
9. Use your finger to propel the penny toward the other end of the lab table trying to get it to stop exactly at the edge of the lab table.
   What did you observe?
   Which of Newton’s Laws is being demonstrated by this activity? Explain your rationale?
   # 5
10. Stand with each of your feet on a separate sheet of paper.
11. Start to run.
12. Observe the paper
    What did you observe?
    Which of Newton’s Laws is being demonstrated by this activity? Explain your rationale?