\nHorse<\/td>\n | Cart<\/td>\n | Change in speed<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n8th Class Physical Science 1st Lesson Force Important Questions and Answers<\/h3>\nQuestion 1. \nA fruit is falling from a tree. Which force acts on the fruit? \nAnswer: \nGravitational force acts on the fruit, which is from a tree.<\/p>\n Question 2. \nFind the net force from the following diagrams. \n \nAnswer: \na) Net force = + 12N + 10N – 8N = + 22N – 8N = 14 N \nb) Net force = +9N – 8N = 1N<\/p>\n Question 3. \nIf you bring a rubbed balloon near the pieces of paper, what do you observe ? \nAnswer: \nRubber balloon attracts pieces of paper. It is electrostatic force.<\/p>\n Question 4. \nFrom the above diagram, calculate the net force acting on a body. \n \nAnswer: \nNet force in vertical direction = 5N – 5N = 0 \nNet force in horizontal direction = 10N – 8N = 2N<\/p>\n <\/p>\n Question 5. \nFind the net forces from the following free body diagram (FED). \n \nAnswer: \ni) Net force in the vertical direction = + 6N – 6N = 0N \nii) Net force in the horizontal direction = + 20N – 3N = 17N.<\/p>\n Question 6. \nWhat will happen if gravitational force disappears from the Earth? Explain. \nAnswer: \nIf gravitational force disappears from the earth, \ni) No atmospheric gases are found around the earth. \nii) Objects does not fall down on the earth. \niii) Human beings, animals can fly easily in the sky. \niv) We cannot find the weight of the objects.<\/p>\n Question 7. \nDefine contact force and force at a distance, give two examples for each type of force. \nAnswer: \nContact force: The force results when there is a direct physical contact between two interacting objects is called contacting force. \nExample: Muscular force, Frictional force, Normal force, Tension. \nField force or Force at a distance : The force which occurs without any physical contact between two objects is known as force at a distance or field force. \nExample : Magnetic force, Electrostatic force, Gravitational force.<\/p>\n <\/p>\n Question 8. \nUsing adjacent diagram, draw a free body diagram (FBD) to show the forces acting on the box. \n \nAnswer: \n<\/p>\n","protected":false},"excerpt":{"rendered":" AP State Syllabus AP Board 8th Class Physical Science Important Questions Chapter 1 Force AP State Syllabus 8th Class Physical Science Important Questions 1st Lesson Force 8th Class Physical Science 1st Lesson Force 1 Mark Important Questions and Answers Question 1. What is force ? What is its S.I. unit? Answer: The push or pull …<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"spay_email":""},"categories":[6],"tags":[],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/apboardsolutions.guru\/wp-json\/wp\/v2\/posts\/8807"}],"collection":[{"href":"https:\/\/apboardsolutions.guru\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/apboardsolutions.guru\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/apboardsolutions.guru\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/apboardsolutions.guru\/wp-json\/wp\/v2\/comments?post=8807"}],"version-history":[{"count":1,"href":"https:\/\/apboardsolutions.guru\/wp-json\/wp\/v2\/posts\/8807\/revisions"}],"predecessor-version":[{"id":36486,"href":"https:\/\/apboardsolutions.guru\/wp-json\/wp\/v2\/posts\/8807\/revisions\/36486"}],"wp:attachment":[{"href":"https:\/\/apboardsolutions.guru\/wp-json\/wp\/v2\/media?parent=8807"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/apboardsolutions.guru\/wp-json\/wp\/v2\/categories?post=8807"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/apboardsolutions.guru\/wp-json\/wp\/v2\/tags?post=8807"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}} |