Science: machines & motion 1 Crossword
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
 
 
Down: 1) states that energy cannot be created or destroyed: it can only change form2) the amount of tension a material can withstand3) ramps5) solid bar that rotates around a fixed point7) the lever has the fulcrum at one end, the effort applied in the middle and the resistance at the opposite end8) solid bar of a lever9) work done over time or the rate at which work is done11) states that matter cannot be created or destroyed it can only change form14) Because mechanical advantage is not "free", you must pay for the advantage by applying the force over a longer distance 15) a wheel that turns a threaded shaft16) when 2 gears with parallel shafts are connected together17) force that resists movement18) movement in a particular direction20) the force that is being applied21) less force is needed to lift the weight if the fulcrum is near the weight that is to be lifted, and the effort is applied farther away22) energy that is being used23) most visible form of energy26) Ability to perform work30) pulling force31) wheel with teeth32) change in position due to an applied force38) the point around which the effort arm rotates 41) an incline plane wrapped around a cylinder and has a flat end Across: 4) a toothed wheel and a toothed bar that move forward and backward or up and down with the rotation of the gear. used to change linear motion into rotational motion or rotational motion into linear motion.6) energy that is being stored10) scientific laws that govern movements of objects12) a push or a pull13) combination of fixed and moveable pulleys19) substances that reduce friction24) ability to move an object with less force25) sum of all forces on an object27) weight or resistance at one end of the effort arm, the fulcrum somewhere in the middle, and the effort applied at the other end of the effort arm28) the fulcrum at one end, the resistance in the middle and the effort at the other end29) the weight that is being moved33) states that changes of momentum in an isolated system must be equal34) inclined plane that is wrapped around a cylinder or cone35) scientific study of motion36) the distance between the threads of a screw or bolt 37) gears with non-parallel shafts that are connected together39) two incline planes placed bottom to bottom to form a point40) states that in a closed system, energy can nether be created nor destroyed, only transformed or transferred41) a force that is exerted by liquids and gases
 

 

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