Give your physics students a focused look at efficiency calculations with ninety questions built for real classroom use, whether you are starting a new unit or reviewing before a test.
The set includes questions like "A motor uses 600 W of power input and performs work at 480 W. What is the efficiency?", "If a machine has an input of 1000 J and an efficiency of 30%, what is the output?", and "If an engine outputs 200 J and has an efficiency of 50%, what is the input?"
Because the three worksheets share the same content in three different formats, you can spread them across the week: one for diagnosis, one for practice, and one for assessment, without repeating a single question.
This set is part of a NGSS aligned physics unit. The unit also covers Work and Energy, Input and Output Energy, Energy in Simple Machines, Comparing Device Efficiency, Insulation and Energy Loss, and Case Study Energy in Homes, all in the same three worksheet format, so your classroom routine stays familiar while the topic changes.
Suitable for Grade 6-8 physics classes, and for review at any point in the school year. This set is aligned to NGSS standard MS-PS3-4.
