We use machines to reduce the amount of effort, or force, we exert. Simple machines make our work easier by SIMPLE MACHINES enabling us to use less force. When less MAQUINAS SIMPLES force is used, it must be applied over a longer distance. STUDENT GUIDE work = force x distance NAME Look for simple machines through- out the Museum and record your findings in this booklet! 1 2 " There are six different simple machines: INSTRUCTIONS 1. CUT PAGES ALONG DOTTED LINES. WEDGE INCLINED PLANE SCREW 2. THROW THIS PAGE AWAY. CUÑA PLANO INCLINADO TORNILLO 3. ARRANGE REMAINING PAGES IN NUMERICAL ORDER. 4. STAPLE PAGES ALONG LEFT EDGE TO FORM A BOOKLET. LEVER PULLEY WHEEL AND AXLE PALANCA POLEA RUEDA Y EJE 3 WEDGE CUÑA LOOK FOR A WEDGE An inclined plane that is thick at one end and tapers to a point on I AM IN THE EXHIBIT. the other, often used to separate DRAW THE WEDGE IN THIS EX- things. HIBIT: LIKE A BOAT! HOW DOES THE WEDGE MAKE WORK EASIER? 4 5 " INCLINED LOOK FOR AN INCLINED PLANE PLANE I AM IN THE EXHIBIT. PLANO INCLINADO DRAW THE INCLINED PLANE IN THIS EXHIBIT: A flat surface with one edge raised higher than the other. LIKE A SKATEBOARD RAMP! HOW DOES THE INCLINED PLANE MAKE WORK EASIER? 6 7 SCREW TORNILLO LOOK FOR A SCREW A specialized simple machine that is used to raise and lower I AM IN THE EXHIBIT. things as well as hold things together. DRAW THE SCREW IN THIS EXHIBIT: LIKE A BOTTLE LID! HOW DOES THE SCREW MAKE WORK EASIER? 8 9 " LOOK FOR A LEVER LEVER PALANCA Bar used for raising or moving I AM IN THE EXHIBIT. weights centered on a fulcrum. DRAW THE LEVER IN THIS EXHIBIT: LIKE A SEESAW! HOW DOES THE LEVER MAKE WORK EASIER? 10 11 LOOK FOR A PULLEY PULLEY POLEA A simple machine with one or more grooved wheels connected by a rope. I AM IN THE EXHIBIT. DRAW THE PULLEY IN THIS EXHIBIT: LIKE A FLAGPOLE! HOW DOES THE PULLEY MAKE WORK EASIER? 12 13 " WHEEL AND AXLE LOOK FOR A WHEEL AND AXLE RUEDA Y EJE I AM IN THE EXHIBIT. A moveable simple machine centered on a fixed point. DRAW THE WHEEL AND AXLE IN THIS EXHIBIT: LIKE A CAR WHEEL! HOW DOES THE WHEEL AND AXLE MAKE WORK EASIER? 14 15.