broughton high school of wake county - mr. edwin p. davis ... · pdf filebroughton high school...

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

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? ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

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

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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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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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

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