Fill in the blanks :(1) Simple machines can be handled ………….. .(2) The structure of complex machine is …………..(3) The more gradual the the ………….. lesser is the we bear. But, such an inclined plane is ………….. .(4) The steeper the ………….. , the ………….. is the inclined plane. But we have to bear a …………. weight.(5) A screw is like a rolled up inclined plane made of an ………….. strip.(6) A wedge is used for ………… an object into two pieces or to ………….. the objects stuck together.(7) A farmer uses a strong …………. to remove the big stone bogged down in the farm.(8) A device with a grooved wheel and thread designed to lift weights is called a …………. .(9) When we use a pulley, force is applied in the downward direction for lifting the weight in an …………. direction.(10) Combination of an axle and a wheel is a …………. machine.(11) A needle and a nail are also kind of …………. .(12) Machines are covered when not in use to prevent …………. settling on them.(13) In Archimedes’ screw, the pipe was placed at an angle of …………. with one end inside the …………. and the rod resting on a …………. .