17th October 2019


How do you calculate for speed?

Method 3 Given Multiple Speeds for Different Amounts of Time
  1. Assess what information you are given. Use this method if you know:
  2. Set up the formula for average speed.
  3. Determine the total distance.
  4. Determine the total time.
  5. Divide the total distance traveled by the total time spent traveling.

Similarly one may ask, what device is used to measure speed?

List of measuring devices
DeviceQuantity measured
sextantlocation on earth's surface (used in naval navigation)
spectrometerproperties of light
spectrophotometerintensity of light as a function of wavelength
speedometerspeed, velocity of a vehicle

What tool measures speed?

The speed of that wind can be measured using a tool called an anemometer. An anemometer looks like a weather vane, but instead of measuring which direction the wind is blowing with pointers, it has four cups so that it can more accurately measure wind speed.

How do we measure the speed of light?

The speed of light in a vacuum stands at “exactly 299,792,458 metres per second“. The reason today we can put an exact figure on it is because the speed of light in a vacuum is a universal constant that has been measured with lasers; and when an experiment involves lasers, it's hard to argue with the results.
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