Tamil Nadu SSLC (Class 10) Laws of Motion — practice questions
52 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice Tamil Nadu SSLC (Class 10) Laws of Motion in the app →The inherent property of a body to resist any change in its state of rest or uniform motion depends primarily When you vigorously shake the branch of a tree, ripe fruits fall down. This is an example of which type of ineAn athlete runs a short distance before taking a long jump. Which type of inertia helps the athlete jump farthThe product of the mass and velocity of a moving body defines which physical quantity?What is the SI unit of linear momentum?Calculate the linear momentum of a body of mass 4 kg moving with a velocity of 5 m s⁻¹.A moving body has a linear momentum of 30 kg m s⁻¹ and a mass of 6 kg. What is its velocity?Which of Newton's laws of motion gives the definition of force as well as inertia?Two equal forces act on a body along the same straight line but in opposite directions. What is the resultant Forces of 5 N and 15 N act on a body in opposite directions along the same line. What is the magnitude and dirA system is brought to equilibrium by applying a force equal in magnitude to the resultant force but opposite The turning effect of a force about a fixed point is measured by the product of the force and which quantity?A door is pushed with a force of 50 N at a point 0.8 m from the hinges. What is the moment of the force about Why is the handle of a door fixed at the edge farthest from the hinges rather than near the hinges?Two equal and unlike parallel forces acting at two distinct points whose lines of action do not coincide constA spanner of length 40 cm needs a force of 140 N to unscrew a nut. To unscrew the same nut, what spanner lengtAccording to the principle of moments, a body under several parallel forces is in equilibrium whenOn a seesaw, a 40 kgf child sits 1.5 m from the pivot. At what distance must a 60 kgf child sit on the other sNewton's second law states that the force on a body is directly proportional to theStarting from F proportional to the rate of change of momentum, the relation F = ma is obtained becauseA force of 24 N acts on a body of mass 6 kg. What acceleration does it produce?Two bodies have masses in the ratio 3:4. A force gives the larger mass an acceleration of 12 m s⁻². What accelOne newton of force is defined as the force that gives a body of mass 1 kg an acceleration ofThe gravitational unit of force, one kilogram force (kgf), is equal toWhen a force F acts on a body for a time interval t, the product F x t is known asThe impulse delivered to a body is numerically equal to itsA cricket fielder pulls his hands backward while catching a fast ball. This action reduces the force on his haA ball of mass 1 kg moving at 10 m s⁻¹ hits a floor and rebounds with the same speed after an elastic collisioNewton's third law of motion states that the action and reaction forces are equal and opposite and always act When a bullet is fired, the gun recoils backward. This recoil is best explained byThe principle of conservation of linear momentum holds for a system of bodies only whenRocket propulsion is based on Newton's third law together with which other principle?According to Newton's universal law of gravitation, the force between two masses isIn the equation F = G m₁m₂ / r², the symbol G represents a quantity whose SI value isWhat is the relation between the acceleration due to gravity g and the universal gravitational constant G for Since g = GM / R², the value of acceleration due to gravity on the Earth's surface depends on the Earth's radiOn the surface of the Earth, the value of acceleration due to gravity g isAs you move to a higher altitude above the Earth's surface or deep below it, the value of gAt what height from the centre of the Earth (radius R) does the acceleration due to gravity become one-fourth The quantity of matter contained in a body is called its mass. Which statement about mass is correct?What is the weight of a body of mass 100 kg on the surface of the Earth, taking g = 9.8 m s⁻²?A person of mass 60 kg weighs 588 N on the Earth. On the Moon, where g = 1.625 m s⁻², the same person will havThe weight of a body on the surface of the Earth isA person of mass m stands in a lift moving upward with acceleration a. The apparent weight R registered by theA lift moves downward with an acceleration a less than g. The apparent weight of a person of mass m inside it A person experiences a state of weightlessness in a lift when the liftWhy do astronauts in an orbiting space station experience weightlessness?The mass of a body is measured as M kg on Earth. If it is taken to a planet whose radius is half that of the EIf the Earth were to shrink to 50% of its present radius while keeping the same mass, the weight of a body on The ratio of the masses of two planets is 2:3 and the ratio of their radii is 4:7. What is the ratio of their To project a rocket, which combination of principles is required?When the linear momentum of a body is plotted on the Y-axis against time on the X-axis, the slope of the graph