W=mg Calculations
9th Grade
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W=mg Calculations
Quiz
•
Physics
•
9th Grade
•
Practice Problem
•
Hard
Standards-aligned
Chelsa Burch
Used 131+ times
FREE Resource
About this resource
This quiz focuses on weight and gravitational force calculations using the fundamental physics equation W=mg, where weight equals mass times gravitational acceleration. The content is appropriate for 9th grade physics students who are learning about forces, gravity, and the relationship between mass and weight. Students need to understand that weight is a force measured in Newtons, mass is measured in kilograms, and gravitational acceleration varies on different celestial bodies. The core concepts required include algebraic manipulation to solve for unknown variables (mass, weight, or gravity), unit analysis and conversion, proper rounding techniques, and familiarity with gravitational values for various planets and moons in our solar system. Students must demonstrate proficiency in isolating variables from the W=mg equation and applying appropriate gravitational constants for Earth, Mars, Saturn, Venus, and the Moon. Created by Chelsa Burch, a Physics teacher in the US who teaches grade 9. This quiz serves as an excellent tool for reinforcing computational skills in gravitational physics through targeted practice problems that mirror real-world scenarios involving space exploration and planetary science. Teachers can implement this assessment as a formative evaluation after introducing the weight-mass relationship, as homework to strengthen problem-solving abilities, or as a warm-up activity to review previously taught concepts. The quiz effectively supports classroom instruction by requiring students to demonstrate mastery of both mathematical manipulation and conceptual understanding of gravitational forces across different environments. This assessment aligns with Next Generation Science Standards HS-PS2-4, which addresses the application of scientific and engineering practices to analyze gravitational interactions, and supports Common Core Mathematics Standards for algebra and scientific notation at the high school level.
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6 questions
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1.
FILL IN THE BLANK QUESTION
2 mins • 1 pt
Find the gravity for a planet when a 65 kg object weighs 2300 N. Enter your final rounded answer WITH a unit. Make sure to put a space between your numerical answer and unit.
2.
FILL IN THE BLANK QUESTION
2 mins • 1 pt
Find the weight of a 2.0 kg object on Saturn. Enter your final rounded answer WITH a unit. Make sure to put a space between your numerical answer and unit.
Tags
NGSS.MS-PS2-4
3.
FILL IN THE BLANK QUESTION
2 mins • 1 pt
Find the mass of a 621 N rover on Venus. Enter your final rounded answer WITH a unit. Make sure to put a space between your numerical answer and unit.
4.
FILL IN THE BLANK QUESTION
2 mins • 1 pt
Find the mass of a 130 N crate on Earth's Moon. Enter your final rounded answer WITH a unit. Make sure to put a space between your numerical answer and unit.
Tags
NGSS.MS-PS2-2
NGSS.MS-PS2-4
5.
FILL IN THE BLANK QUESTION
2 mins • 1 pt
Find the weight of a 73 kg object on Mars. Enter your final rounded answer WITH a unit. Make sure to put a space between your numerical answer and unit.
Tags
NGSS.MS-ESS1-2
NGSS.MS-PS2-4
6.
FILL IN THE BLANK QUESTION
2 mins • 1 pt
Find the gravity for a planet when a 4.1 kg object weighs 107 N. Enter your final rounded answer WITH a unit. Make sure to put a space between your numerical answer and unit.
Tags
NGSS.MS-PS2-2
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