MASS & WEIGHT 10 GRAVITATION Class 9th Science (Physics) (Practice Sheet) 1 What is the SI unit of mass? A. Kilogram (kg) B. Gram (g) C. Pound (lb) D. Newton (N) 2 Which of the following remains constant regardless of location in the universe? A. Mass B. Weight C. Both mass and weight D. Both mass and weight 3 The weight of an object on the moon's surface is about 1/6th of its weight on Earth. This is because: A. The moon has less gravitational force than Earth. B. The moon's surface is softer. C. The moon's atmosphere is different. D. The moon's diameter is smaller. 4 Which of the following is a scalar quantity? A. Mass B. Force C. Velocity D. Acceleration 5 An object weighs 60 N on Earth's surface. What is its weight on the surface of Mars? (Assume the acceleration due to gravity on Mars is about 3.7 m/s2) A. 10 N B. 22 N C. 60 N D. 150 N 6 What are the physics of mass and weight? 7 What is the most significant aspect of the mass-weight connection to remember? 8 Is mass proportional to weight? 9 Is mass proportional to volume? 10 What does relativistic mass imply? Page 1 Email: Phone No: Website:
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