Unit Conversion and Scientific Notation

This video tutorial covers the process of converting velocities between meters per second (m/s) and kilometers per hour (km/h). It provides step-by-step instructions on using conversion charts and calculators to perform these conversions. The video includes examples of converting 22 m/s to km/h and 78 km/h to m/s, highlighting common mistakes students make. Practice problems are provided for further learning.

What is the first step in converting 22 m/s to km/h?

• Convert kilometers to meters

• Convert seconds to minutes

• Convert hours to seconds

• Convert meters to kilometers

How many meters are there in one kilometer?

• 10000

• 1000

• 100

• 10

What is the correct number of seconds in one hour?

• 3600

• 600

• 60

• 1800

Which button should you use on a calculator to avoid errors when entering scientific notation?

• Multiply

• Carrot top

• E

• x 10

In the second example, what is the initial speed given in km/h?

• 22 km/h

• 78 km/h

• 50 km/h

• 40 km/h

What is the conversion factor from kilometers to meters?

• 1 km = 100 m

• 1 km = 1000 m

• 1 km = 10 m

• 1 km = 10000 m

What is the result of converting 78 km/h to meters per second?

• 0.217 m/s

• 217 m/s

• 21.7 m/s

• 2.17 m/s

What is the correct scientific notation for 144 km/h?

• 1.44 x 10^2 km/h

• 14.4 x 10^1 km/h

• 0.144 x 10^3 km/h

• 144 x 10^0 km/h

What is the conversion result of 50 km/h to meters per second?

• 15.39 m/s

• 11.39 m/s

• 13.89 m/s

• 10.39 m/s

What should you do if you make a mistake in conversion calculations?

• Ignore it

• Check the conversion factors

• Use a different calculator

• Ask a friend