How To Convert From Km/hr to m/s and m/s to Km/hr - With Shortcut!

The Organic Chemistry Tutor
18 Oct 201910:43
EducationalLearning
32 Likes 10 Comments

TLDRThis informative video script explains the process of converting units of speed between kilometers per hour and meters per second. It introduces a quick method using the factor 3.6 for both conversions and provides detailed examples with step-by-step calculations, ensuring a clear understanding of the conversion process. The script is designed to help viewers not only find the answer but also demonstrate their work, which is particularly useful for academic or professional purposes.

Takeaways
  • πŸ“ Converting units is essential for understanding and comparing different measurements in various contexts.
  • πŸš€ To convert from kilometers per hour (km/h) to meters per second (m/s), divide the value by 3.6.
  • πŸ”„ For the reverse conversion, from meters per second to kilometers per hour, multiply the value by 3.6.
  • 🧠 Understanding the conversion factors is crucial: 1 km equals 1000 meters, 1 hour equals 60 minutes, and 1 minute equals 60 seconds.
  • πŸ“ When showing work for conversions, it's important to set up the problem correctly with units to cancel out and achieve the desired unit format.
  • 🌟 Example: Converting 40 km/h to m/s involves dividing 40 by 3.6, resulting in 11.1 m/s.
  • πŸ“ For detailed conversion work, write out the steps and use the conversion factors to cancel units systematically.
  • πŸ”’ In the example of 75 km/h to m/s, the calculation is (75 * 1000) / (60 * 60), yielding 20.83 m/s.
  • πŸ›€οΈ Converting meters per second to kilometers per hour also involves using the conversion factors in reverse, as demonstrated with the example of 24 m/s to 86.4 km/h.
  • 🌈 Practice is key: attempting different conversions, such as 19 m/s to km/h, reinforces understanding of the process.
  • πŸŽ“ The final example shows that regardless of the order in which you perform the conversions (meters to kilometers or seconds to minutes first), the result will be the same when done correctly.
Q & A
  • What is the primary topic of the video?

    -The primary topic of the video is how to convert units of speed, specifically from kilometers per hour to meters per second and vice versa.

  • What is the quick method to convert kilometers per hour to meters per second?

    -The quick method to convert kilometers per hour to meters per second is to divide the speed value in kilometers per hour by 3.6.

  • How can you show your work for converting kilometers per hour to meters per second?

    -To show your work, you need to use conversion factors. You convert kilometers to meters (1 km = 1000 m) and hours to seconds (1 hour = 60 minutes = 3600 seconds), and then perform the calculation: (speed in km/h * 1000) / (3600).

  • What is the example given in the video for converting kilometers per hour to meters per second?

    -The example given is converting 40 kilometers per hour to meters per second, which results in 11.1 meters per second when divided by 3.6.

  • What is the quick method to convert meters per second to kilometers per hour?

    -The quick method to convert meters per second to kilometers per hour is to multiply the speed value in meters per second by 3.6.

  • How do you show the work for converting meters per second to kilometers per hour?

    -To show the work, you use the conversion factors again. You convert meters to kilometers (1000 meters = 1 km) and seconds to hours (60 seconds = 1 minute, 3600 seconds = 1 hour), and then perform the calculation: (speed in m/s * 3600) / 1000.

  • What is the example given in the video for converting meters per second to kilometers per hour?

    -The example given is converting 24 meters per second to kilometers per hour, which results in 86.4 kilometers per hour when multiplied by 3.6.

  • Why is it important to cancel units during the conversion process?

    -Canceling units during the conversion process is important to isolate the desired units of measurement, ensuring that the final result is in the correct units (kilometers and hours in this case).

  • What is the significance of the number 3.6 in the conversion process?

    -The number 3.6 is a conversion factor that relates kilometers per hour to meters per second. It is derived from the conversion of distance (1000 meters in a kilometer) and time (3600 seconds in an hour).

  • How can you ensure you get the correct units in the final answer?

    -To ensure you get the correct units in the final answer, you must carefully place the conversion factors in the numerator and denominator to cancel out all units except for the ones you want to keep.

  • What is the process for converting 75 kilometers per hour to meters per second as shown in the video?

    -To convert 75 kilometers per hour to meters per second, you divide 75 by 3.6 to get approximately 20.83 meters per second. Alternatively, you can manually convert each unit: multiply by 1000 to convert kilometers to meters, divide by 60 to convert hours to minutes, and then divide by 60 again to convert minutes to seconds.

  • What is the process for converting 19 meters per second to kilometers per hour as shown in the video?

    -To convert 19 meters per second to kilometers per hour, you multiply 19 by 3.6 to get approximately 68.4 kilometers per hour. Alternatively, you can manually convert each unit: divide by 1000 to convert meters to kilometers, multiply by 60 to convert seconds to minutes, and then multiply by 60 again to convert minutes to hours.

Outlines
00:00
πŸ“ Converting Kilometers per Hour to Meters per Second

This paragraph introduces the method of converting speed from kilometers per hour (km/h) to meters per second (m/s). It explains the quick way to perform the conversion by dividing the value in km/h by 3.6 to get the result in m/s. The paragraph also emphasizes the importance of showing work, especially for tests or assessments. An example is provided where 40 km/h is converted to m/s by dividing by 3.6, resulting in 11.1 m/s. The explanation includes a step-by-step breakdown of the conversion process, highlighting the need to convert kilometers to meters and hours to seconds using appropriate conversion factors.

05:00
πŸ”„ Converting Meters per Second to Kilometers per Hour

This paragraph focuses on the reverse process of converting speed from meters per second (m/s) to kilometers per hour (km/h). It begins by explaining the shortcut method of multiplying the m/s value by 3.6 to obtain the result in km/h. The paragraph then provides a detailed example of converting 75 km/h to m/s, resulting in 20.83 m/s. The explanation involves a step-by-step approach, converting kilometers to meters, hours to minutes, and minutes to seconds, and then performing the necessary arithmetic to achieve the final result. The paragraph also encourages viewers to practice the conversion on their own.

10:01
πŸ”„ Detailed Conversion Examples and Practice

This paragraph delves deeper into the conversion process with more examples and practice opportunities. It starts by guiding the viewer through the conversion of 24 m/s to km/h, using both the shortcut method and a detailed step-by-step approach. The explanation includes converting units of time and distance appropriately to arrive at the final result of 86.4 km/h. The paragraph then presents another example, converting 19 m/s to km/h, and encourages the viewer to work through the problem independently. The detailed explanation showcases the importance of canceling units correctly to arrive at the accurate conversion, resulting in a final answer of 68.4 km/h.

Mindmap
Keywords
πŸ’‘conversion
The process of changing a physical quantity from one unit to another. In the context of the video, conversion refers to the method of transforming speed measurements from kilometers per hour to meters per second and vice versa. The video provides a quick method using the factor 3.6 for these unit conversions, as well as a detailed step-by-step process involving multiplying and dividing by conversion factors related to meters, kilometers, seconds, and hours.
πŸ’‘kilometers per hour (km/h)
A unit of speed expressing the distance traveled in kilometers per hour. The video explains how to convert this unit to meters per second. It is commonly used for measuring speeds in everyday life, such as the speed of a car.
πŸ’‘meters per second (m/s)
A unit of speed that indicates the distance an object travels in meters every second. The video details how to convert this unit from kilometers per hour. It is often used in scientific contexts and for describing the speed of objects in a more precise manner.
πŸ’‘factor 3.6
A mathematical constant used to convert speeds between kilometers per hour and meters per second. The video emphasizes that dividing a speed in km/h by 3.6 yields the equivalent speed in m/s, and multiplying m/s by 3.6 gives the speed in km/h.
πŸ’‘conversion factors
Numerical values used to convert between different units of measurement. In the video, conversion factors such as 1 kilometer equals 1000 meters, 1 hour equals 60 minutes, and 1 minute equals 60 seconds are used to perform detailed conversions between units of speed.
πŸ’‘unit cancellation
A method used in calculations to simplify expressions by canceling out units that appear in the numerator and denominator of a fraction. In the context of the video, unit cancellation is used to convert units of distance and time when calculating speed.
πŸ’‘practice problems
Mathematical exercises provided in the video for viewers to apply the conversion techniques they have learned. These problems allow the viewer to practice converting speeds between kilometers per hour and meters per second using both the quick method and the detailed step-by-step method.
πŸ’‘speed
A physical quantity that describes how fast an object is moving, typically measured in terms of distance traveled over time. The video focuses on the conversion of speed units, specifically from kilometers per hour to meters per second and back again.
πŸ’‘work
In the context of the video, 'work' refers to the process of showing the step-by-step calculations and conversions, rather than just providing the final answer. This helps the viewer understand the underlying methodology and apply it to other similar problems.
πŸ’‘quick method
A shortcut or simplified way to find an answer without showing all the detailed steps. In the video, the quick method involves using the factor 3.6 to instantly convert speeds between kilometers per hour and meters per second.
πŸ’‘detailed method
A comprehensive approach to solving a problem that involves showing all the steps and calculations. In the video, the detailed method for converting units of speed involves using conversion factors for kilometers, meters, hours, minutes, and seconds to fully explain the process.
Highlights

The video explains the conversion between kilometers per hour and meters per second.

To convert kilometers per hour to meters per second, divide by 3.6.

For the reverse, to convert meters per second to kilometers per hour, multiply by 3.6.

The video provides a quick method for conversion as well as a detailed method for showing your work.

An example is given where 40 kilometers per hour is converted to 11.1 meters per second.

Conversion factors used are: 1 kilometer equals 1000 meters, 1 hour equals 60 minutes, and 1 minute equals 60 seconds.

The process of converting units involves canceling out unwanted units and keeping the desired ones.

Another example is shown with 75 kilometers per hour converting to 20.83 meters per second.

The video also explains how to convert meters per second back to kilometers per hour.

An example of this reverse conversion is provided, converting 24 meters per second to 86.4 kilometers per hour.

The method for reverse conversion involves multiplying by 3.6 as a shortcut.

Detailed work for the reverse conversion is shown, including the use of conversion factors.

Another practice example is given, converting 19 meters per second to 68.4 kilometers per hour.

The video emphasizes the importance of canceling units correctly to get the desired result.

The final example demonstrates converting 19 meters per second to 68.5 kilometers per hour with detailed steps.

The video concludes by reinforcing that the method taught can be used to convert between meters per second and kilometers per hour.

Thank you for watching is reiterated, emphasizing the educational value of the video.

Transcripts
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