1 / 13

Work – force exerted over a distance

Work – force exerted over a distance. Force Distance Energy. # 62. Spring scale – used for finding force in Newtons (N). Measurement Mass Gravity. # 63. simple machine – allows a smaller force with a larger distance. Lever Pulley Inclined plane Wedge Screw Wheel and axle. # 64.

ace
Download Presentation

Work – force exerted over a distance

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Work– force exerted over a distance • Force • Distance • Energy # 62

  2. Spring scale – used for finding force in Newtons (N) • Measurement • Mass • Gravity # 63

  3. simple machine – allows a smaller force with a larger distance • Lever • Pulley • Inclined plane • Wedge • Screw • Wheel and axle # 64

  4. Effort – force used on a machine to make work Push or pull Mass Force # 65

  5. lever – a bar that balances on a fixed point • Tools • Crow bar • Tweezers • Fulcrum # 66

  6. fulcrum – the point where the lever balances • Pivot • Change location • Doesn’t move # 67

  7. pulley – a rope wrapped around a grooved wheel • Fixed • Movable • Blinds # 68

  8. Block and Tackle - a combination of 2 or more pulleys • Weight machine • Crane • More pulleys = less effort # 69

  9. inclined plane – sloping surface used to raise objects, doesn’t move Less Force Ramp Lift # 70

  10. wedge – inclined plane with 1 or 2 sloping sides Moves Nail Knife # 71

  11. screw – inclined plane wrapped around a cylinder • More distance, less force • Bolt • Jar lid # 72

  12. Wheel and axle – 2 circular objects, a shaft (axle) in the middle of a wheel • Door knobs • Steering wheels • Screwdrivers • Gears • Bicycle wheels # 73

  13. Complex or compound machines– 2 or more simple machines Scissors Fishing pole Bicycle # 74

More Related