1 / 22

P3.1 - Objectives

P3.1 - Objectives. Calculate the moment of a force with the correct units. Describe the turning effect of a force on a force diagram. Rearrange the moments equation to perform simple calculations. Can a two year hold girl hold a mass of 1kg for more than 2 minutes? Can you?.

jovan
Download Presentation

P3.1 - Objectives

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. P3.1 - Objectives • Calculate the moment of a force with the correct units. • Describe the turning effect of a force on a force diagram. • Rearrange the moments equation to perform simple calculations. • Can a two year hold girl hold a mass of 1kg for more than 2 minutes? • Can you?

  2. Moment = Force x distance M [newton metres] = F [newtons] x d [metres] d F Here the turning moment is anti-clockwise so the beam turns anti-clockwise

  3. For an object to be in equilibrium: Anti-Clockwise Moments = Clockwise Moments Or Anti-Clockwise Moments - Clockwise Moments = 0 F 2F

  4. Tasks • Make a Glossary in the first two pages of your books. Write definitions of: • Pivot • Fulcrum • Load • Effort • Moment • Equilibrium • Clockwise • Perpendicular • Write a couple of paragraphs explaining how and where levers are useful.

  5. Ask yourself: What is the purpose of this experiment? Have I recorded any data? Am I using my time wisely?

  6. Complete Homework 2 This can be found at mrmathesonsphysics.wikispaces.com

  7. If each red Lego piece has a downwards force of 1 unit, what will be the total moment of this system? How could it be balanced?

  8. Why don’t traffic cones fall over?

  9. Using the equation of moments of a force - answers 1. a. Position a b. The moment is the same in each position, as it always balances the anticlockwise moment. 2. 10N × 2m  2N × 0.5m – 35N × 1m –14Nm It will start to accelerate anticlockwise. 3.

  10. Starter Sort the pieces into three piles: balanced clockwise anti-clockwise

  11. Write definitions of: • Line of action • Stability • Base • Topple • Centre of mass

More Related