Physics ideas click fastest with real practice. This set gives your Grade 6-8 class ninety questions on comparing device efficiency.

Students will answer questions such as "What is the primary factor that affects a motor's efficiency?", "What does a fan's energy star rating signify?", and "Which light bulb type generally has the highest efficiency in converting electricity to light?"

What's Inside?

• 30 Multiple Choice questions as a separate print ready PDF worksheet
• 30 True or False questions as a separate print ready PDF worksheet
• 30 Short Answer questions as a separate print ready PDF worksheet
• Includes Answer Key with Explanations for all 90 questions
• 6 print ready PDF files, 27 pages in total

All three worksheets cover the same topic in different question styles. That means you can use one as a pretest, another for practice or homework, and the third as a follow up quiz, without students ever seeing the same question twice.

Ways to Use This Resource

• Bell ringers and warm ups during the unit
• First look diagnostic to plan your unit
• Homework or review before a test
• Warm up review before a problem solving session
• Self checking practice, since every answer key includes explanations

This set is part of a complete physics unit. The unit also covers Work and Energy, Input and Output Energy, Efficiency Calculations, Energy in Simple Machines, 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.