Expert answer:Vectors and Newton’s laws

Expert answer:Watch background videos “Vectors” and “Newtons Laws” available at:https://www.youtube.com/watch?v=MWrOozSSdW8&list=PL8_xPU5epJddRABXqJ5h5G0dk-XGtA5cZ&index=5andhttps://www.youtube.com/watch?v=tsJMfy2GH0A&index=6&list=PL8_xPU5epJddRABXqJ5h5G0dk-XGtA5cZrespectively.As you watch it, the answers to the questions (located on the folder labeled “video reports”) should become apparent. Write your answers as detailed and completely as possible in a copy of the word document provided in the “Video Reports” folder.
newton_s_laws_vq.pdf

vectors_vq.pdf

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Name: ______________________________________________________________
Newton’s Laws
Instructions: Print the guiding questions and use them to write your answers as you read or watch
the instructional media (reading, video, radio podcast, computer simulation, etc.). Type the
number of the question and your answer (do not re-copy the original question) and send the
completed report to Blackboard’s SafeAssign. For all questions, answer in your own words
(paraphrase). Answers that are directly copied from any internet source, including the
instructional media studied, will receive no credit.
Newton’s Laws
1. State (in words) Newton’s second law.
2. In the equation F = ma, what must “F” and “a” always have?
3. Applying F = ma for free falling objects, we can conclude that the force of gravity
produces a _____ _____to a mass m.
4. What two forces are always acting on a falling object (after it is released)?
5. State Newton’s first law.
6. What is an alternate way of writing Newton’s second law?
7. State Newton’s third law.
8. In the David and Goliath example, why wasn’t the confrontation as uneven as originally
portrayed?
9. According to Galileo, what two types of simultaneous motions do all projectiles have in
common?
10. For falling objects, describe the velocity and acceleration for each of the two types of
simultaneous motions.
11. What incorrect medieval idea was used to try to explain the motion of projectiles?
12. What is the difference between the contributions of Galileo and Newton to the study of
motion?
13. In the “shoot the monkey” experiment, where must the pistol be aimed at for the bullet to
reach its target?
Name: ______________________________________________________________
Vectors
Instructions: Print the guiding questions and use them to write your answers as you read or watch
the instructional media (reading, video, radio podcast, computer simulation, etc.). Type the number
of the question and your answer (do not re-copy the original question) and send the completed
report to Blackboard’s SafeAssign. For all questions, answer in your own words (paraphrase).
Answers that are directly copied from any internet source, including the instructional media studied,
will receive no credit.
Vectors
1. What is a vector? How is it represented?
2. How do you represent vector with a large or a small magnitude?
3. When two vectors are added together, what is the result?
4. What is vital for reading any map? Why?
5. What two famous scientists developed some of the first coordinate systems?
6. When multiplying a vector by a positive scalar, a new vector is obtained. How the magnitude and
the direction of the new vector compare with the old vector?
7. When multiplying a vector by a negative scalar, a new vector is obtained. How the magnitude
and the direction of the new vector compare with the old vector?
8. What two famous scientists were the developers of vector algebra?
9. How do you calculate a vector “dot product”?
10. What the “cross product” of two vectors represents?
11. What are unit vectors? How do you represent them?
12. According to the video, which coordinate system is the best?
…
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