||A simple machine helps a person in doing –
||The same amount of work with lesser force
||A man is standing on a sensitive balance. If he inhales deeply, the reading of the balance –
||Which physical quantity is represented by the ratio of momentum and velocity of the body?
||Force is the product of –
||Mass and acceleration
||If the number represents volume and surface area of a cube are equal, then the length of the edge of the cube in terms of the unit of measurement will be –
||Energy conservation means –
||Energy can neither be created nor destroyed
||The energy of wind is –
||In wind power, which form of energy is converted into electrical energy?
||Newton’s first law of motion is known as –
||Law of Inertia
||As the train starts moving, the head of the passenger sitting inside leans backward because of –
||Inertia of Rest
||Static science is associated with –
||Situation of rest
||It is more difficult to walk on the ice than on the road because –
||Ice has a lesser friction than the road.
||For every action there is an equal and opposite reaction. The law was given by –
||A man jumped at a speed of 5 meters per second from a stationary boat and the boat moved off at the speed of 0.5 meters per second. How many times is the mass of the boat greater than that of the man?
||A truck, a car, and a motorcycle have equal kinetic energies. If equal stopping forces are applied and they stop after traveling a distance of X, Y, and Z respectively, then –
||X = Y = Z
||The ratio of kinetic energies of two bodies of the same mass is 4: 9, the ratio of their velocities will be –
||2 – 3
||Cycles and cars use ball bearings, because –
||The effective area of contact between the wheel and axle is reduced.
||An oil tanker is partially filled with oil and moves forward on a level road with uniform acceleration. The free surface of oil then –
||Is inclined to the horizontal with a larger depth at the rear end
||A batsman hits a cricket ball which then rolls on a level ground. After covering a short distance, the ball comes to rest. The ball slows to a stop because –
||There is a force on the ball opposing the motion
||What is the correct equation for finding the acceleration?
||A = v-u/t
||The working principle of a washing machine is –
||The separation of cream from milk by churning is due to –