MCQ Chapter 7 General Science Class 7 Maharashtra Board MCQ For All Chapters – General Science Class 7Motion, Force and Work 1. What happens to a carrom coin’s velocity when talcum powder is applied? It stops immediately It decreases faster It keeps moving longer It changes directionQuestion 1 of 192. What force causes a rolling marble to stop on a tabletop? Gravity Friction Acceleration DisplacementQuestion 2 of 193. What does Newton’s First Law of Motion state? A body accelerates without force A body’s velocity does not change without force Force equals displacement Velocity increases with timeQuestion 3 of 194. Who first studied force and the resulting acceleration? Galileo Einstein Sir Isaac Newton RanjitQuestion 4 of 195. What is the force called when a 1 kg weight is pulled with an acceleration of 1 m/s²? 1 Joule 1 Newton 1 Erg 1 MetreQuestion 5 of 196. If a 1 kg weight is pulled with 2 m/s² acceleration, what force is applied? 1 N 2 N 3 N 4 NQuestion 6 of 197. What is work dependent on? Time and speed Force and displacement Velocity and acceleration Mass and distanceQuestion 7 of 198. What is the formula for work? W = F × s W = F / s W = s / F W = F + sQuestion 8 of 199. What is the SI unit of work? Newton Metre Joule SecondQuestion 9 of 1910. What is the CGS unit of work? Joule Erg Newton DyneQuestion 10 of 1911. How much work is done if a 1 N force displaces a block by 1 metre? 1 Joule 2 Joules 1 Newton 1 MetreQuestion 11 of 1912. If a body moves with constant speed, what is its acceleration? Zero Increasing Decreasing ConstantQuestion 12 of 1913. What is the actual distance traversed by Sachin and Sameer from A to E? 10 km 13 km 15 km 18 kmQuestion 13 of 1914. What is the displacement from A to E for Sachin and Sameer? 5 km 10 km 15 km 3 kmQuestion 14 of 1915. What was Sachin and Sameer’s speed from A to E? 10 km/hr 15 km/hr 13 km/hr 18 km/hrQuestion 15 of 1916. How much work was done to stop a car with a 1000 N force over 10 m? 5000 J 10000 J 15000 J 20000 JQuestion 16 of 1917. How much work was done by a 2 N force on a 20 kg cart over 50 m? 50 J 100 J 150 J 200 JQuestion 17 of 1918. What is the unit of force in the SI system? Joule Newton Erg MetreQuestion 18 of 1919. Why does a bird’s displacement return to zero after flying and returning to its perch? It traveled no distance It returned to the starting point It flew too fast It changed speedQuestion 19 of 19 Loading...
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