{"appState":{"pageLoadApiCallsStatus":true},"articleState":{"article":{"headers":{"creationTime":"2017-11-30T03:31:00+00:00","modifiedTime":"2017-11-30T03:31:00+00:00","timestamp":"2022-09-14T18:16:04+00:00"},"data":{"breadcrumbs":[{"name":"Academics & The Arts","_links":{"self":"https://dummies-api.dummies.com/v2/categories/33662"},"slug":"academics-the-arts","categoryId":33662},{"name":"Study Skills & Test Prep","_links":{"self":"https://dummies-api.dummies.com/v2/categories/33772"},"slug":"study-skills-test-prep","categoryId":33772},{"name":"GED","_links":{"self":"https://dummies-api.dummies.com/v2/categories/33783"},"slug":"ged","categoryId":33783}],"title":"GED Science Extra Prep: Forces and Their Effects","strippedTitle":"ged science extra prep: forces and their effects","slug":"ged-science-extra-prep-forces-effects","canonicalUrl":"","seo":{"metaDescription":"Some questions on the GED Science exam will test your knowledge of the laws of physics. The following practice questions focus on Newton’s law of motion. Practi","noIndex":0,"noFollow":0},"content":"Some questions on the GED Science exam will test your knowledge of the laws of physics. The following practice questions focus on Newton’s law of motion.\r\n<h2 id=\"tab1\" >Practice Questions</h2>\r\n<em>Use the following information for both questions.</em>\r\n\r\nA student is testing out Newton’s laws of motion by applying different forces for 3 seconds to different-colored toy cars of the same mass (2 kg each). The cars start at rest. She records the data for the toy cars in the following chart.\r\n\r\n<img class=\"alignnone size-full wp-image-247654\" src=\"https://www.dummies.com/wp-content/uploads/GED_3001.jpg\" alt=\"GED_3001\" width=\"521\" height=\"123\" />\r\n<ol>\r\n \t<li>What is the value of the unbalanced force acting on the green car?\r\n\r\n<strong>A.</strong> 0 N\r\n<strong>B.</strong> 4 N\r\n<strong>C.</strong> 6 N\r\n<strong>D.</strong> 10 N</li>\r\n \t<li>Which car has the greatest unbalanced force acting on it?\r\n\r\n<strong>A.</strong> red\r\n<strong>B.</strong> orange\r\n<strong>C.</strong> green\r\n<strong>D.</strong> blue</li>\r\n</ol>\r\n<h2 id=\"tab2\" >Answers and Explanations</h2>\r\n<ol>\r\n \t<li>The correct answer is A.\r\n\r\nYou can calculate the unbalanced force acting on each car by multiplying the mass by the acceleration (using <em>F</em> = <em>ma</em>). The green car has zero acceleration; therefore, the value of the unbalanced forces acting on it must be zero. 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She records the data for the toy cars in the following chart.\r\n\r\n<img class=\"alignnone size-full wp-image-247654\" src=\"https://www.dummies.com/wp-content/uploads/GED_3001.jpg\" alt=\"GED_3001\" width=\"521\" height=\"123\" />\r\n<ol>\r\n \t<li>What is the value of the unbalanced force acting on the green car?\r\n\r\n<strong>A.</strong> 0 N\r\n<strong>B.</strong> 4 N\r\n<strong>C.</strong> 6 N\r\n<strong>D.</strong> 10 N</li>\r\n \t<li>Which car has the greatest unbalanced force acting on it?\r\n\r\n<strong>A.</strong> red\r\n<strong>B.</strong> orange\r\n<strong>C.</strong> green\r\n<strong>D.</strong> blue</li>\r\n</ol>\r\n<h2 id=\"tab2\" >Answers and Explanations</h2>\r\n<ol>\r\n \t<li>The correct answer is A.\r\n\r\nYou can calculate the unbalanced force acting on each car by multiplying the mass by the acceleration (using <em>F</em> = <em>ma</em>). The green car has zero acceleration; therefore, the value of the unbalanced forces acting on it must be zero. The correct answer is Choice (A).</li>\r\n \t<li>The correct answer is A.\r\n\r\nYou can calculate the unbalanced force acting on each car by multiplying the mass by the acceleration (using <em>F</em> = <em>ma</em>). Because all the cars have the same mass, the car with the largest acceleration must have been subjected to the largest unbalanced force, making Choice (A) the correct answer.</li>\r\n</ol>","blurb":"","authors":[{"authorId":8947,"name":"The Experts at Dummies","slug":"the-experts-at-dummies","description":"The Experts at Dummies are smart, friendly people who make learning easy by taking a not-so-serious approach to serious stuff.","hasArticle":false,"_links":{"self":"https://dummies-api.dummies.com/v2/authors/8947"}}],"primaryCategoryTaxonomy":{"categoryId":33783,"title":"GED","slug":"ged","_links":{"self":"https://dummies-api.dummies.com/v2/categories/33783"}},"secondaryCategoryTaxonomy":{"categoryId":0,"title":null,"slug":null,"_links":null},"tertiaryCategoryTaxonomy":{"categoryId":0,"title":null,"slug":null,"_links":null},"trendingArticles":[{"articleId":175788,"title":"Trig Identities for 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GED Science Extra Prep: Forces and Their Effects

By: The Experts at Dummies and

Updated: 11-30-2017

From The Book: GED Test

GED Test

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Some questions on the GED Science exam will test your knowledge of the laws of physics. The following practice questions focus on Newton’s law of motion.

Practice Questions

Use the following information for both questions.

A student is testing out Newton’s laws of motion by applying different forces for 3 seconds to different-colored toy cars of the same mass (2 kg each). The cars start at rest. She records the data for the toy cars in the following chart.

GED_3001

What is the value of the unbalanced force acting on the green car?
A. 0 N B. 4 N C. 6 N D. 10 N
Which car has the greatest unbalanced force acting on it?
A. red B. orange C. green D. blue

Answers and Explanations

The correct answer is A.
You can calculate the unbalanced force acting on each car by multiplying the mass by the acceleration (using F = ma). The green car has zero acceleration; therefore, the value of the unbalanced forces acting on it must be zero. The correct answer is Choice (A).
The correct answer is A.
You can calculate the unbalanced force acting on each car by multiplying the mass by the acceleration (using F = ma). Because all the cars have the same mass, the car with the largest acceleration must have been subjected to the largest unbalanced force, making Choice (A) the correct answer.

About This Article

This article is from the book:

GED Test ,

About the book author:

Stuart Donnelly, PhD, earned his doctorate in mathe-matics from Oxford University at the age of 25. Since then, he has established successful tutoring services in both Hong Kong and the United States and is considered by leading educators to be one of the most experienced and qualified private tutors in the country.

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