This is a series of free Physics Lessons with examples and solutions.
Introduction to centripetal acceleration (part 1)
Intuition behind what it takes to make something travel in a circle
Centripetal Acceleration (part 2)
More intuition on centripetal acceleration. A simple orbit problem.
Centripetal Acceleration (part 3)
How fast does a car need to go to complete a loop-d-loop?
Try out our new and fun Fraction Concoction Game.
Add and subtract fractions to make exciting fraction concoctions following a recipe. There are four levels of difficulty: Easy, medium, hard and insane. Practice the basics of fraction addition and subtraction or challenge yourself with the insane level.
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