Simple Machines Practice Problems
Authored by Mahlow undefined
Mathematics, Physics
9th - 11th Grade
CCSS covered
Used 591+ times
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About
This quiz focuses on simple machines within the broader topic of physics, specifically targeting the mechanical advantage calculations and fundamental principles that govern levers, pulleys, inclined planes, and wheel-and-axle systems. Based on the mathematical complexity and physics concepts required, this material is most appropriate for 9th-11th grade students studying introductory physics or physical science. Students need a solid understanding of force, work, and energy principles, along with the ability to manipulate algebraic equations to solve for unknown variables. The core reasoning skills include calculating mechanical advantage using the ratio of output force to input force, understanding how different classes of levers function, applying torque and equilibrium principles to lever systems, and analyzing compound machines where multiple simple machines work together. Students must also demonstrate conceptual understanding of how simple machines change the direction or magnitude of applied forces while conserving energy. Created by Mahlow, a Mathematics teacher in US who teaches grades 9 and 11. This quiz serves as an excellent tool for formative assessment, allowing teachers to gauge student comprehension of simple machines before advancing to more complex physics topics. The problems progress from basic mechanical advantage calculations to more sophisticated real-world applications involving construction scenarios and industrial equipment, making it ideal for homework assignments or in-class practice sessions. Teachers can use this as a warm-up activity to activate prior knowledge or as a review tool before unit exams. The quiz effectively assesses student mastery of concepts aligned with NGSS HS-PS3-3 (designing and evaluating devices that transfer mechanical energy) and Common Core mathematical practices including modeling with mathematics and reasoning abstractly, making it valuable for both physics and integrated STEM curricula.
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16 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Using a lever, Joe is able to lift a 10,000 N car off of the ground with a force of 1000 N. What is the mechanical advantage of the lever?
Tags
CCSS.HSA.CED.A.1
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
How does a single fixed puled, like the one seen here, help you do work?
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Jeff is a landscaping contractor and lifts a rock weighing 600 pounds by wedging a board under the rock. Jeff weighs 150 pounds and puts all of his weight on the lever. How much mechanical advantage did the lever provide to Jeff in lifting the rock?
Tags
CCSS.7.RP.A.2
CCSS.7.RP.A.3
CCSS.7.EE.B.3
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
A lever and fulcrum are used to lift a fallen tree, which has a weight of 480 N. If the lever has a mechanical advantage of 5.5, what is the input force that will begin lifting the tree off the ground?
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
When given input and output forces, you find mechanical advantage by:
Tags
CCSS.6.RP.A.1
CCSS.6.RP.A.3
CCSS.6.RP.A.2
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Name the class of lever.
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
What is the mechanical advantage for this lever?
Tags
CCSS.7.RP.A.2
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