Exploratorium
Exploratorium: Drives and Gears
Discover the basic structure of the bicycle chain drive system, and find out how it has developed over the years.
Sophia Learning
Sophia: Introduction to Efficiency
A narrated tutorial which introduces the concept of efficiency as it relates to energy input and output. [1:36]
Sophia Learning
Sophia: Mechanical Efficiency: Lesson 3
This lesson will introduce the concept of Mechanical Efficiency and explain how to calculate it for simple machines. It is 3 of 3 in the series titled "Mechanical Efficiency."
Sophia Learning
Sophia: Mechanical Efficiency: Lesson 1
This lesson will introduce the concept of Mechanical Efficiency and explain how to calculate it for simple machines. It is 1 of 3 in the series titled "Mechanical Efficiency."
Sophia Learning
Sophia: Practice W/ Efficiency
This lesson provides the learner with example problems on calculating efficiency.
Sophia Learning
Sophia: Mechanical Efficiency: Lesson 2
This lesson will introduce the concept of Mechanical Efficiency and explain how to calculate it for simple machines. It is 2 of 3 in the series titled "Mechanical Efficiency."