Which of the following is NOT an effect of force?, Change in the shape of an object, Change in the motion of the object, Change in the density of an object, Change the direction of motion, The magnitude of force is measured using a, thermometer, spring balance, triple beam balance, metre rule, According to Hooke's law, the extension of the spring is, inversely proportional to the applied force, equal to the gravitational force, directly proportional to the applied force, independent of the applied force, What is the extension of the spring when loaded with a body of weight?, 8cm, 18cm, 10cm, 26cm, Which of the following will not affect the magnitude of the force exerted by a spring?, Colour of spring, Length of spring, Thickness of spring, Material of spring, The SI unit of force is, Metre (m), Joule (J), metre per second (ms-1), Newton (N), Which of the following is a non-contact force?, friction, tension, magnetic force, elastic force, Which of the following statements is correct?, The book exerts a downward force on the table while the table exerts an upward force on the table, The book and the table exert forces in the same direction., Only the table exerts force, The book exerts no force., The relationship between weight and mass is, W = mg, W = m/g, W = g/m, W = m+g, A person weighs slightly less at the equator than at the poles because, the person's mass decreases, the temperature is higher at the equator, the Earth's gravity is weaker at the equator, the person is closer to the centre of the Earth, Gravitational force is, fixed at any place on the Earth, is a non-contact force, is larger on the Moon than the Earth., will change according to the position of a body., Which of the following arrows shows the gravitational force on an object?, purple arrow, blue arrow, red arrow, green arrow, Elastic force, resists motion between surfaces, restores an object to its original shape, acts only on liquids, acts at a distance, Mass increases with latitude., True, False, Weight measured in, kilogram (kg), Newton (N), metre (m), gram (g), Mass changes with location, weight does not., True, False, Weight is vector quantity that has magnitude and direction., True, False, Friction always acts, in the direction of motion, opposite to the direction of motion, perpendicular to the surface, vertically downwards, Which of the following undergone elastic deformation?, stretching a steel spring, bending of steel rods, chewing a bubble gum, playing with plasticine, The frictional force that prevents motion from starting is called, sliding friction, rolling friction, static friction, dynamic friciton, The magnitude of frictional force depends on, surface roughness, contact surface, volume of objects, colour of objects, Which of the following reduces harmful friction?, using rougher surface, increasing the mass, applying brakes, adding rolling wheels, The .......the surface, the greater the frictional force., smaller, smoother, greater, rougher, The weight of an astronaut on Earth is 700N. After being launched to the moon, how does the weight change?, decreases, increases, remain unchanged, become zero, Which of the following way can help to reduce the frictional force?, decrease the contact surface, adding lubricating oil, increase the roughness of the surface, adding more weight

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