List of top Physics Questions on work, energy and power asked in MET

A force F acting on a body depends on its displacement S as \(F \propto S^{-1/3}\). The power delivered by F will depend on displacement as

A body moves a distance of 10 m under the action of force \(F = 10\) N. If the work done is 25 J, the angle which the force makes with the direction of motion is

A body of mass 8 kg is moved by a force \(F = 3x\) N, where x is the distance covered. Initial position is x = 2 m and the final position is x = 10 m. The initial speed is zero. The final speed is

\( 2HI(g) \rightleftharpoons H_{2}(g) + I_{2}(g) \). The equilibrium constant of the above reaction is 6.4 at 300 K. If 0.25 mole each of \( H_{2} \) and \( I_{2} \) are added to the system, the equilibrium constant will be

If \( x \) is numerically so small that \( x^{2} \) and higher powers of \( x \) can be neglected, then \( \left(1+\frac{2x}{3}\right)^{3/2} \cdot (32+5x)^{-1/5} \) is approximately equal to

\( \frac{1}{e^{3x}}(e^{x} + e^{5x}) = a_{0} + a_{1}x + a_{2}x^{2} + \cdots \Rightarrow 2a_{1} + 2^{3}a_{3} + 2^{5}a_{5} + \cdots \) is equal to

Rate of physical adsorption increases with

The escape velocity from the surface of the earth is \( v_{e} \). The escape velocity from the surface of a planet whose mass and radius are 3 times those of the earth will be:

The power of a water pump is 2 kW. If \( g = 10 \text{ m/s}^{2} \), the amount of water it can raise in one minute to a height of 10 m is:

The escape velocity of a body from the surface of the earth is 11.2 km/s. If a body is projected with a velocity twice the escape velocity, then the velocity of the body far away from the earth will be:

The potential energy of a simple harmonic oscillator at its mean position is: