ICSE Class 10 Machines — practice questions
25 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice ICSE Class 10 Machines in the app →Mechanical advantage of a machine is the ratio of:Velocity ratio of a machine is:Efficiency of a machine equals:A class I lever has the fulcrum:A nutcracker is an example of which class of lever?A wheelbarrow is an example of which class of lever?A pair of sugar tongs is an example of:Single fixed pulley has mechanical advantage of:Single movable pulley has ideal mechanical advantage of:Efficiency of an ideal machine is:Which simple machine multiplies SPEED rather than force?In a block and tackle pulley system with n supporting strings, the ideal mechanical advantage is:A load of 100 N is lifted by an effort of 25 N. Mechanical advantage is:A pulley system has V.R. = 5 and M.A. = 4. Its efficiency is:In a real machine, is M.A. always equal to V.R.?An inclined plane of length 10 m and height 2 m has velocity ratio:A force multiplier is a machine whose:A pulley arrangement has 3 movable and 1 fixed pulley. Ideal V.R. is:In a Class I lever the effort arm is 60 cm and the load arm is 20 cm. Mechanical advantage is:If a 200 N load is lifted 0.5 m using a 50 N effort moving 2 m, find efficiency:A boy can apply effort of 100 N. If he wants to lift a 400 N load, the M.A. of the machine he needs is at leasWhich of the following has M.A. of 1?A force multiplier always has:In an ideal block and tackle with 5 strings supporting the load, the effort needed to lift 1000 N is:Why does increasing the length of an inclined plane reduce effort?