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# Physics1b experiments: Simple Machines- Detailed lab experiments illustrating simple machines with accompanying worksheets

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Detailed lab experiments illustrating simple machines with accompanying worksheets

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### Physics1b experiments: Simple Machines- Detailed lab experiments illustrating simple machines with accompanying worksheets

1. 1. SIMPLE MACHINES LAB Pulley <ul><li>Materials: pencil, Simple Machines WS, Science Notebook, blinds </li></ul><ul><li>Procedure </li></ul><ul><li>Use the cords to release the blinds. </li></ul><ul><li>Now pull up the blinds using the pulley. </li></ul><ul><li>Sketch and explain the forces acting on the string/blinds. </li></ul><ul><li>QUESTIONS: </li></ul><ul><li>How can a pulley make lifting an object easier? </li></ul><ul><li>What does it do? </li></ul>
2. 2. SIMPLE MACHINES LAB Inclined Plane <ul><li>QUESTIONS: </li></ul><ul><li>How can an inclined plane make it easier to lift up an object? </li></ul><ul><li>How can the momentum of each ball be described? (Use the words mass & velocity) </li></ul><ul><li>Materials: pencil, Simple Machines WS, Science Notebook, 2 small balls (different sizes), ramp (two boards) </li></ul><ul><li>Procedure </li></ul><ul><li>Roll the ball down the ramp. </li></ul><ul><li>Roll the ball up the ramp. </li></ul><ul><li>Use a different ball. Repeat. </li></ul><ul><li>Sketch and explain the forces acting on the ball. </li></ul>
3. 3. SIMPLE MACHINES LAB Screw <ul><li>Materials: pencil, Simple Machines WS, Science Notebook, screws, monkey wrench, screw drivers </li></ul><ul><li>Procedure </li></ul><ul><li>Find the screw on the monkey wrench. Sketch & label. </li></ul><ul><li>Screw each of the screws into the wood. (Righty tighty, lefty loosey) </li></ul><ul><li>QUESTIONS: </li></ul><ul><li>Which screw was easiest? Hardest? </li></ul><ul><li>Look at the screws. How are they different? How could this explain it? </li></ul>
4. 4. SIMPLE MACHINES LAB Wedge Task 1 <ul><li>Materials: pencil, Simple Machines WS, Science Notebook, wedge, clay, nail, pin, cloth </li></ul><ul><li>Procedure </li></ul><ul><li>TASK 1: </li></ul><ul><li>Stick the needle in the cloth. </li></ul><ul><li>Pull it out. Use the other end. Answer the question for task 1 </li></ul><ul><li>QUESTIONS: </li></ul><ul><li>TASK 1 </li></ul><ul><li>Does using the eye-end work? Which works better? Why? </li></ul>
5. 5. SIMPLE MACHINES LAB Wedge Task 2 <ul><li>Materials: pencil, Simple Machines WS, Science Notebook, wedge, clay, nail, pin, cloth </li></ul><ul><li>Procedure </li></ul><ul><li>TASK 2: </li></ul><ul><li>Press the wedge flat side into the clay. </li></ul><ul><li>Press the wedge point side into the clay. Answer the questions for Task 2. </li></ul><ul><li>Roll the ball of clay back up. Press palm into clay. </li></ul><ul><li>Press fingers into clay. </li></ul><ul><li>Press 1 finger into clay. Answer the questions for Task 2. </li></ul><ul><li>Sketch and explain the forces acting on the wedge/clay. </li></ul><ul><li>QUESTIONS: </li></ul><ul><li>TASK 2 </li></ul><ul><li>Which is easier- flat end or pointed end? Why? </li></ul><ul><li>Which is easier- palm, all fingers, 1 finger? Why? </li></ul>
6. 6. SIMPLE MACHINES LAB Wheel & Axle Task 1 <ul><li>Materials: pencil, Simple Machines WS, Science Notebook, toe car, can opener, pre-made straw/string/cup wheel & axle </li></ul><ul><li>Procedure </li></ul><ul><li>TASK 1: </li></ul><ul><li>Rotate the wheels on the can opener. Observe. Answer questions on Task 1. </li></ul><ul><li>Rotate the wheels on the toy car. Observe. Answer questions on Task 1 card. </li></ul><ul><li>QUESTIONS: </li></ul><ul><li>TASK 1 </li></ul><ul><li>How does the can opener open a can? (There are 3 machines here.) </li></ul><ul><li>Draw the wheel & axle(s) from the toy car. </li></ul>
7. 7. SIMPLE MACHINES LAB Wheel & Axle Task 2 <ul><li>Materials: pencil, Simple Machines WS, Science Notebook, toe car, can opener, pre-made straw/string/cup wheel & axle </li></ul><ul><li>Procedure </li></ul><ul><li>TASK 2: </li></ul><ul><li>Set up: Tape the cup to the table near the edge. </li></ul><ul><li>Rotate the straw to ‘wind up’ the string. </li></ul><ul><li>Try lifting the items with the wheel & axle. </li></ul><ul><li>QUESTIONS: </li></ul><ul><li>TASK 2 </li></ul><ul><li>What items could you lift with the wheel & axle? </li></ul><ul><li>Sketch & explain the forces pulling up an object. </li></ul>
8. 8. SIMPLE MACHINES LAB Potential Energy <ul><li>Materials: pencil, Simple Machines WS, Science Notebook, slinky, rubber band </li></ul><ul><li>Procedure </li></ul><ul><li>Think about the different forms of potential Energy & answer the following questions. </li></ul><ul><li>QUESTIONS: </li></ul><ul><li>What kinds of potential energy are in the following items? </li></ul><ul><li>Slinky, ball at the top of a hill, fire, sun, flute playing, battery, plutonium atom, rubber band </li></ul>E
9. 9. SIMPLE MACHINES LAB Lever Task 1 <ul><li>Materials: pencil, Simple Machines WS, Science Notebook, nails, hammer, wood </li></ul><ul><li>Procedure </li></ul><ul><li>Hammer the nail into the block of wood. </li></ul><ul><li>Use the back of the hammer as a lever to pull the nail out of the wood. (See teacher.) </li></ul><ul><li>Answer question for Task 1 </li></ul><ul><li>QUESTIONS: </li></ul><ul><li>Task 1 </li></ul><ul><li>Explain how you are able to take the nail out this way and not by your fingers. </li></ul>
10. 10. SIMPLE MACHINES LAB Lever Task 2 <ul><li>Materials: pencil, Simple Machines WS, Science Notebook, (items below) </li></ul><ul><li>Procedure </li></ul><ul><li>Point out the fulcrum on these objects: </li></ul><ul><ul><li>Scissors </li></ul></ul><ul><ul><li>Pliers </li></ul></ul><ul><ul><li>staple pull-outer </li></ul></ul><ul><ul><li>Spoon/fork </li></ul></ul><ul><ul><li>Hammer </li></ul></ul><ul><ul><li>Large clip </li></ul></ul><ul><ul><li>Clamp </li></ul></ul><ul><ul><li>2. Answer the question for Task 2. </li></ul></ul><ul><li>QUESTIONS: </li></ul><ul><li>Task 2 </li></ul><ul><li>Sketch & label the fulcrums for the objects. </li></ul>
11. 11. SIMPLE MACHINES LAB Lever Task 3 <ul><li>Materials: pencil, Simple Machines WS, Science Notebook, ruler, 2 textbooks, several objects (see below) </li></ul><ul><li>Procedure </li></ul><ul><li>Use the lever to lift the loads. Answer Q’s. </li></ul><ul><li>Change the fulcrum points to lift greater weights. DO NOT BREAK THE RULER </li></ul><ul><li>LOADS: Notepad Stamp pad Disk Book Small box large box book MORE… </li></ul><ul><li>QUESTIONS: </li></ul><ul><li>Task 3 </li></ul><ul><li>How does changing the position of the fulcrum help lift things heavier or lighter. </li></ul>
12. 12. SIMPLE MACHINES LAB LINK TO WS l