LET'S APPLY IT! Look around the classroom. List all the simple machines that you can see. Classify them as lever, inclined plane, pulley, wedge, or wheel and axle. Try to manipulate the simple machines to see how they work.
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Answer:
1. Ruler - Inclined Plane
2. Desk - Wedge
3. Doorknob - Lever
4. Chair - Wedge
5. Pencil Sharpener - Wheel and Axle
6. Pencil - Wedge
7. Computer - No simple machine
8. Pencil Case - No simple machine
9. Light Switch - Lever
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1. Lever: scissors, stapler, door handle
2. Inclined Plane: ramp, stairs, door wedge
3. Pulley: window blinds, clothesline
4. Wedge: scissors, push pins, chisels, toothpicks
5. Wheel and Axle: pencil sharpener, rolling chair, door knob, bicycle
To manipulate the simple machines, you can try to operate the door handle or knob, cut paper using scissors, use a stapler, adjust the window blinds, sharpen your pencil, or move a rolling chair. By doing so, you can observe how these simple machines work to make tasks easier to accomplish.