Physics Quest: Forces

 

Introduction

In this PhysicsQuest you will learn about forces and Newton’s Laws.

Instructions

  • Visit the links provided for each section and neatly write your answers to the questions.
  • You must use your own words. Do not copy and paste to your paper!

Section 1: Isaac Newton

Most topics regarding forces in physics can be related back to the work of Isaac Newton.  Here you are going to find some information about the man who’s work you will be studying.

  1. Who was Isaac Newton?  What important contributions did he make to science?
    http://www.windows.ucar.edu/tour/link=/people/enlightenment/newton.html
  2. When was Isaac Newton born?  Where was Isaac Newton born?  How old was he when he died?  What was his childhood like?
    http://www.biography.com/people/isaac-newton-9422656
  3. What famous story, although there is no proof, suggests how Isaac Newton made his discoveries about gravity (three laws of motion)?
    http://www.mainlesson.com/display.php?author=baldwin&book=thirty&story=newton
  4. Who is Galileo?  What does Galileo have to do with Isaac Newton?
    http://abyss.uoregon.edu/~js/glossary/galileo.html

Section 2: Newton’s Laws

All of motion can be described using Newton’s Laws.  Until Einstein came along we thought that everything in the universe could be described using Newton’s Laws.  In this section you are going to be what these laws are and how they describe motion.

  1. What is Newton’s 1st law?  Describe an example of Newton’s 1st Law from the webpage.  Has something similar ever happened to you?  What did Newton call his first law?
    http://www.physicsclassroom.com/class/newtlaws/u2l1a.cfm
  2. Newton’s 2nd law is F = ma. Write the formula in words. Why do a speeding bullet and a moving train have so much force? Do you know who is faster than a speeding bullet and stronger than a locomotive?
    http://www.physicsclassroom.com/class/newtlaws/Lesson-3/Newton-s-Second-Law
  3. What is Newton’s 3rd law?  What example was described on this webpage?  Have you every experienced something similar?
    http://www.physicsclassroom.com/class/newtlaws/Lesson-4/Newton-s-Third-Law
  4. Find one activity to illustrate each of the three laws.  Be specific.
    http://www.physicsclassroom.com/class/newtlaws/u2l1a.cfm
    http://teachertech.rice.edu/Participants/louviere/Newton/law2.html
    http://teachertech.rice.edu/Participants/louviere/Newton/law3.html

Section 3: Forces

In this section you will be learning about several different types of forces and how they act on objects and cause motion.

  1. What is a force?  List examples of the forces acting on a moving a car.
    http://www.bbc.co.uk/schools/gcsebitesize/science/add_aqa/forces/forcesbrakingrev1.shtml
    http://www.physicsclassroom.com/class/newtlaws/Lesson-2/Types-of-Forces
  2. What is friction?  What are the two types of friction?  How are they similar and how are they different?
    http://hyperphysics.phy-astr.gsu.edu/hbase/frict.html
  3. What is gravity?  How does gravity work in space?
    http://www.qrg.northwestern.edu/projects/vss/docs/space-environment/1-what-is-gravity.html
  4. How are balanced forces and unbalanced forces different?  Which one causes movement?
    http://utahscience.oremjr.alpine.k12.ut.us/sciber99/8th/forces/sciber/forces.htm
    http://www.physicsclassroom.com/class/newtlaws/Lesson-1/Balanced-and-Unbalanced-Forces
  5. What is a force diagram?  Draw a force diagram of the forces acting on a book on a table.
    http://www.physicsclassroom.com/class/newtlaws/Lesson-2/Drawing-Free-Body-Diagrams
    http://www.physicsclassroom.com/class/newtlaws/Lesson-1/Balanced-and-Unbalanced-Forces

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