04-운동의 과학
17/10/18 11:08
4. 운동의 과학
May the Force Be with You
“The F, the m and the a in Newton’s formula are very important concepts in mechanics. The F is force, a push or pull exerted on an object. The m is mass, a measure of how much matter is in an object. And the a is acceleration, which describes how an object’s velocity changes over time. Velocity, which is similar to speed, is the distance an object travels in a certain amount of time.”
-- From http://science.howstuffworks.com/science-vs-myth/everyday-myths/newton-law-of-motion1.htm
Homework Assignment : 4. 운동의 과학 - 미리 공부하기 (제출기한: 10월18일(목))
- 교재 ‘호기심의 과학’: 운동의 과학, pp 107-139("공중부양이 가능하려면?", "원심력은 가짜힘")과 관련 자료를 찾아서 공부하고, 아래 "Suggested Questions"를 참고하여 자기만의 질문을 만들어 "Comments (댓글)" 링크에 올려주기 바랍니다.
Useful Links and Further Reading:
- Newton’s laws of motion (From Wikipedia, the free encyclopedia) - Inside see the MIT Open Courseware (Video Lectures) 6: Newton’s First, Second, and Third Laws: http://en.wikipedia.org/wiki/Newton’s_laws_of_motion
- “Galileo and Einstein” by Michael Fowler (U of Virginia) http://galileoandeinstein.physics.virginia.edu/
- "One Million Dollar Paranormal Challenge" - wikipedia, https://en.wikipedia.org/wiki/One_Million_Dollar_Paranormal_Challenge
- Coriolis Effect - youtube, https://www.youtube.com/watch?v=dt_XJp77-mk&feature=youtu.be
- Visualization of the Coriolis and centrifugal forces - youtube, https://www.youtube.com/watch?v=49JwbrXcPjc&feature=youtu.be
- Rotating Frames of Reference - MIT OpenCourseWare, https://www.youtube.com/watch?v=IOcrHOc23N4
- Speed and Velocity: http://www.physicsclassroom.com/class/1dkin/u1l1d.cfm
- Velocity Vector: http://mathworld.wolfram.com/VelocityVector.html
- Fishing under ice: http://bestofyoutube.com/fishing-under-ice -- Figure out how gravity works here!
Suggested Questions
- 관성이란 어떻게 생기는 것일까? 관성이 큰 물체와 작은 물체의 차이는 어떻게 생기는 것일까?
- 힘과 가속도의 비례 관계를 어떻게 알 수 있나? 주변에서 뉴튼의 제2법칙을 보이는 경우를 생각해보자.
- 외부에서 힘을 받지 않고 “스스로 움직이는 물체”를 찾아보자. 이런 물체는 뉴튼의 법칙에 위배되는 운동을 하는 것일까?
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