Send the link below via email or IMCopy
Present to your audienceStart remote presentation
- Invited audience members will follow you as you navigate and present
- People invited to a presentation do not need a Prezi account
- This link expires 10 minutes after you close the presentation
- A maximum of 30 users can follow your presentation
- Learn more about this feature in our knowledge base article
Do you really want to delete this prezi?
Neither you, nor the coeditors you shared it with will be able to recover it again.
Make your likes visible on Facebook?
Connect your Facebook account to Prezi and let your likes appear on your timeline.
You can change this under Settings & Account at any time.
Work and Power
Transcript of Work and Power
in science, power is
the rate of doing work. To increase power, you can increase the amount of work done in a given time, or you can do a given amount of work in less time. The formula is work/time Work Machines Example: Your family is moving to a new apartment. While lifting a box 1.5m straight up to put it on a truck, you exert an upward force of 200N for 10s.
How much power is required to do this? Is the product of force and distance Work is done when a force acts on an object in the direction the object moves. Work requires motion: If there is no movement no work is done Work depends on direction: The amount of work done on an object depends on the direction of force and movement Calculating Work: Multiplyng the constant force acting in the direction of motion by the distance Formula: Work: Force x Distance Units of work: The product of force and distance results in joules (J) Using the Work formula: Simply substitute the correct values into the formula and multiply The lug wrench and the jack are machines that help people make tasks they wouldnt be able to do Solution: