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  • Education

Unit 3: Forces

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  • Physics in Motion

Forces

Start Unit

7 Segments in this Unit

Segment 3A: Newton’s Laws Overview 
Newton's three laws of motion.

Segment A: Newton’s Laws Overview

We introduce Newton's three laws of motion as we explore what causes objects to move.

Segment 3B: Free Body Diagrams We illustrate how free body diagrams help us analyze force

Segment B: Free Body Diagrams

We visit a bustling port on Georgia's coast to illustrate how free body diagrams help us analyze forces. Useful rules for drawing free body diagrams are also explained.

Segment 3C: Newton’s Second Law Part 1
We analyze the forces acting on an object.

Segment C: Newton’s Second Law Part 1

Newton's second law is explained as we examine the forces of gravity, tension, friction, spring, and the normal. We use an example problem to analyze the forces acting on an object resting on a surface.

Segment 3D: Newton’s Second Law Part 2
Explore the force of friction in greater detail.

Segment D: Newton’s Second Law Part 2

We continue to investigate Newton's second law and explore the force of friction in greater detail. We also look at the forces acting on an object in both the horizontal and vertical directions.

Segment 3E: Newton’s Third Law
We investigate Newton's third law.

Segment E: Newton’s Third Law

We head to an archery range in this segment to investigate Newton's third law.

Segment 3F: Gravity 
We investigate the force of gravity.

Segment F: Gravity

We travel to an indoor skydiving facility to investigate the force of gravity. Concepts such as weight, Newton's Law of Gravitation, air resistance, and terminal velocity are discussed.

Segment 3G: Circular Motion
We explore the concept of circular motion.

Segment G: Circular Motion

We travel to an amusement park to explore circular motion. We work through an example problem and define such terms as tangential velocity and centripetal acceleration.

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