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.
Transcript of Speed
So, speed can be in something that is:
- Very fast
- Or very slow
- As long as the object takes time to go a distance, it has a speed How is Speed Measured? - Speed can be measured by dividing the distance the object traveled, by the time it took to cover that distance
- The equation is: Distance Speed = Time - The SI unit of speed is also distance over time. So for example, in 8 km/s, km is the distance, while s is the time, therefore km/s is the unit. What Can Measure Speed? -Besides using an equation to calculate speed, there are devices that can easily tell you the speed at which something moves Examples of these are:
- Radar Guns = devices that use radar technology to sense how fast an object passes - Digital Speedometers = which give an estimate of how fast, the vehicle you are in, is moving. -Anemometers = a tool that rotates with the wind, and then uses a scale to measure wind speed Average Speed - Average speed is the total distance covered by the total amount of time
- The equation to get Average Speed is: Total Distance Average Speed = Total Time - So if a car takes 5 seconds to go 15 km, then 5seconds to go 25km its speeds would be 3 & 5km/s. But, its average speed would be 4 km/s Instantaneous Speed & Consistency Then Suddenly... - Speed is almost never consistent in moving objects - Since speed is rarely consistent, we also have instantaneous speed - Instantaneous speed is the speed of an object at any instant in time - While average speed involves the total, instantaneous speed involves just a specific part of time... - ... hence the word instant, in instantaneous speed Speed Vs. Velocity What is the Difference? - While speed is the distance covered in an amount of time
- Velocity is the distance covered in an amount of time, in a certain direction
-Direction is the only thing that differs from speed and velocity, but it is direction that makes a significant difference