A well constructed Pencil Catapult for fun, entertainment and whatever else you might think of doing with it. Suitable for children with supervision. Concept...

This video goes through a right triangle problem, finding the length of two sides and an angle. It is a basic review of SOH CAH TOA and the Pythagorean Theorem; very fundamental items in Physics.
Times of Content:
0:35 Defining a Right Triangle
...1:09 Defining the problem
2:12 Defining SOH CAH TOA
4:02 Defining Opposite and Adjacent
5:04 Step 1) Finding the Hypotenuse
7:12 Step 2) Finding Side y
9:19 Step 3) Finding Theta 2
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Next Video:
Introduction to Displacement and the Differences Between Displacement and Distance
Previous Video:
Introduction to Accuracy and Precision (includes Relative Error)[more]

This video includes the basics of doing conversions, why conversions work, conversions with squares and fractions. Includes several examples.
Times of the examples:
0:59 - 11 millimeters to meters
2:54 - 4.2 cm to m
3:35 - 17 g to kg
4:32 - 14... m/s to km/hr
7:40 - 12.2 mm^2 to m^2
9:50 - 120 km/hr^2 to m/s^2
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Next Video:
Introduction to Accuracy and Precision (includes Relative Error)
Previous Video:
Introduction to Base Dimensions and Your Friends[more]

The rules of Significant Figures (or Digits) with several examples and a common mistake. Also a few Scientific Notation Examples.
Content Times:
0:17 Defining Significant Figures
0:58 The Rules of Significant Figures
1:32 First Example
2:03 Se...cond Example
2:52 Many More Examples
5:08 Scientific Notation and Significant Digits
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Next Video:
Rounding and Working with Significant Figures in Physics[more]

The Rules of Rounding with several examples and a common mistake. How to use Significant Figures in Physics.
Content Times:
0:23 The Basic Rules of Rounding
0:44 Two Examples
1:19 The Arcane Rounding Rule (Beware!)
2:04 More Examples
3:08 The... Addition and Subtraction Rules of Rounding
3:39 The Multiplication and Division Rules of Rounding
5:17 Working with Significant Figures in Physics
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Next Video:
Introduction to Base Dimensions and Your Friends
Previous Video:
Introduction to Significant Figures with Examples[more]

Concepts: Frame of Reference, Distance, Displacement -------------- Part of a Blended Classroom taught at Millard West High School. Produced for Millard Publ...

Introduction to SI (Système international d'unités or Metric Units) and English (or Imperial) units. Dimensions are your Friend.
Content Times:
0:15 Dimensions are your Friends!
2:11 Base Dimensions
2:43 The Table of Base Dimensions
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Next Video:
Introduction to Conversions in Physics
Previous Video:
Rounding and Working with Significant Figures in Physics[more]

Make these darts and conquer your boredom at work. Or just because darts are cool! I use them with kids to demonstrate how you can change variables that caus...

How the four forces exist in the universe that make everything happen. What keeps the atoms of our Universe from flying apart? Why don't the electrons crash ...

From powersof10.com, produced by Charles and Ray Eames

Based on the famous film Powers of Ten by Ray and Charles Eames (1977), this video depicts the scale of the Universe in factors of ten. The video begins overlooking a couple sharing a picnic in the park. Every 10 seconds the couple appears 10 times f...arther away until the viewer sees the galaxy itself. The camera then begins to zoom in on the couple in the park until we reach a magnitude of 10 ee-18, observing subatomic particles (09:01).[more]

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