1. State Newton's First Law of motion
2. State Newton's Second Law of motion
3. State Newton's Third Law of Motion
4. Galileo discovered that falling objects cover successively larger distances during each unit of time (e.g., a freely falling ball will travel 5 m in the first second, 15 m in the second second, 25 m in the third,...). Because of this we can see that a freely falling object speeds up each second it falls. By how much does a freely falling body speed up each second? If an object were thrown up, by how much does its speed decrease each second?
5. Which one of Newton's Laws had already been discovered by Galileo?
6. The acceleration a body experiences is ______________________ proportional to the ______________________ ______________________ ______________________ and ______________________ proportional to the mass. Fill in the blanks with any number of the following words: external, internal, net, force, directly, inversely, mass, weight.
7. True or False: "Directly Proportional to" means "thumbs-up - thumbs-up."
8. True or False: "inversely Proportional to" means "thumbs-up - thumbs-up."
9. Which law suggests it is not wise to punch a wall? Why?
10. Which law limits the amount of force a professional boxer can punch a tissue with? How?
Part 2
Reflections Questions:
1. Write down Newton's Universal Law of Gravitation in equation form.
2. State Newton's Universal Law of Gravitation in sentence form.
3. How did Newton discover the law of gravity?
4. Two objects attract each other with 10,000 N of force. If one of those objects mass was cut in half and the other one decreased by a factor of five, what would be the new gravitational force?
5. Two objects attract each other with 10,000 N of force. If one of those objects mass doubled and the other one increased by a factor of eight, what would be the new gravitational force?
6. Two objects attract each other with 10,000 N of force. If those two objects were separated by a distance twice as large as they originally were separated by, what would be the new gravitational force? What if the new distance was times as large as the original? What about four times as large?
7. Two objects attract each other with 10,000 N of force. If one of those objects mass doubled and the other one increased by a factor of eight AND the distance between them was increased by a factor of four, what would be the new gravitational force?