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  • Broughton High School of Wake County

    Student Workbook Physical Science 2015 Mr. Davis

  • Broughton High School of Wake County

    Student Workbook Physical Science 2015 Mr. Davis

    Physical Science Notebook Table of Contents

    Chapter 3 Forces & Laws of Motion

    Pg. # Date Description Turned In

    Received Back

    1 2 3

    4 5 6

    7 8 9 10

    11 12 13 14

    15 16 17

    18 19 20 21

    22 23 24 25

  • Broughton High School of Wake County

    Student Workbook Physical Science 2015 Mr. Davis

    Physical Science Vocabulary

    Vocabulary for Chapter 3: Forces Period: _________

    No.# Term Page #

    Definition

    Air Resistance

    Centripetal Acceleration

    Centripetal Force

    Friction

    Gravity

    Momentum

    Sliding Friction

    Static Friction

    Rolling Friction

    Weight

    Newtons 1st Law of Motion

    Explain the Force of the Karate Kick? ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

  • Broughton High School of Wake County

    Student Workbook Physical Science 2015 Mr. Davis

    Vocabulary for Chapter 3: Forces

    No.# Term Page #

    Definition

    Newtons 2nd Law of Motion

    Newtons 3rd Law of Motion

    Mass

    Law of Conservation of Momentum

    Law of Universal Gravitation

    Terminal Velocity

    Einsteins Maze

  • Broughton High School of Wake County

    Student Workbook Physical Science 2015 Mr. Davis

    Types of Forces

    1. Force: is a push or pull that one object exerts on another object.

    2. Balanced Force - is when two equal and opposite forces are applied on a body in two exactly opposite directions. When equal and opposite forces act on a body, and the body does not move then it (body) is said to be in equilibrium or we can also state as balanced forces acting on an object.

    Balanced Forces acting in opposite direction are added together to a total force.

    3. Unbalanced Force - Forces that produce a non-zero net force, which changes an object's motion. Unbalanced

    forces are forces that produce a non-zero net force, which changes an object's motion. The result of an unbalanced force is acceleration of an object.

    Unbalanced Forces Forces acting in opposite directions are substrated from one another to obtain the total force being exerted and the direction of the force.

    Balanced Force

    Unbalanced Force

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  • Broughton High School of Wake County

    Student Workbook Physical Science 2015 Mr. Davis

  • Broughton High School of Wake County

    Student Workbook Physical Science 2015 Mr. Davis

    Newtons Laws of Motion Definitions

    Newtons 1st Law of Motion referred as the Law of Inertia, states that the velocity of an object will remain constant unless a net force acts on it.

    Newtons 2nd Law of Motion states that when a net force acts on an object, the object will accelerate in the direction of the net force.

    Newtons 3rd Law of Motion states that when one object exerts a force on a second object, the second object exerts a force on the second object, the second object exerts a force on the first object that is equal in magnitude and opposite in direction.

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  • Broughton High School of Wake County

    Student Workbook Physical Science 2015 Mr. Davis

    Newtons Laws of Motion A

    Fill in the blanks with words from the box.

    acceleration decreases equal force

    increases inertia mass motion

    Newton opposite reaction rest

    Sir Isaac Newton

    The English scientist Sir Isaac _________________ developed three laws

    of motions. His first law is called the law of _________________. This law

    states that objects in motion will stay in _________________ and objects

    at rest will stay at _________________ unless acted upon by an

    unbalanced _________________.

    Newtons second law of motion states that an unbalanced force is equal to _________________ times

    _________________. This mea