1000+ Last 15 Years GATE Papers with Solutions Pdf - 2

Question: 6

The moment of a force

(A) measures the ability to produce turning or twisting about an axes

(B) occurs when bodies are in motion

(C) measures the capacity to do useful work

(D) occurs about a point

Question: 7

If two bodies one light and one heavy have equal kinetic energies, which one has a greater momentum?

(A) momentum depends on velocities

(B) both have equal momentum

(C) light body

(D) heavy body

Question: 8

Which one of the following is not the law of dry friction?

(A) the force of friction is always normal to the surface

(B) friction always acts to opposite the relative motion of the free body

(C) if static friction is acting, the value of the friction force may vary from zero to its maximum value

(D) if friction is neglected, the reactions are always normal to the surfaces on contact

Question: 9

The earth's gravitational force field is said to be conservative force field because

(A) the work acted by the earth’s gravitational field on a particle is independent on the path traced out by the particle

(B) the work acted by the earth’s gravitational field will cause same path for all particles irrespective of their mass

(C) the value of gravitational force rise is fixed

(D) the direction of gravitational force is fixed

Question: 10

The statement that the sum of the kinetic and potential energies of a particle in the earth's gravitational field is constant is known as

(A) principle of conservation of mechanical energy

(B) law of nature

(C) law of gravitation

(D) newton's law