make a list of safety precaution when using machines give less to each of the following 1,______,_____sharp objects 2,______,_____wheels and gears 3,______,_____ramps 4,______,_____pulleys 5,_____,______bicycle 6,______,_____scissors 7,______,_____ax 8,______,_____hammer 9,______,_____staple 10,______,____computer