Question

In 1-2 sentences explain how to calculate the fficeny of a toaster
Answer
A student uses a pulley to lift a log. In 1-2 explain how she can calculate the pulley’s efficiency
Answer
What is a efficent simple machine
Answered by GPT 3.5
To calculate the efficiency of a toaster, divide the useful energy output (toast) by the energy input (electricity) and multiply by 100 to express the result as a percentage.
Answered by GPT 3.5
To calculate the pulley's efficiency, the student can divide the work output (weight of the log lifted) by the work input (force applied by the student) and multiply by 100 to express the result as a percentage.
Answered by GPT 3.5
An example of an efficient simple machine is the lever, which is capable of providing mechanical advantage and reducing the amount of force needed to accomplish a task.