Understanding Windchill Factor

The video tutorial explains the concept of windchill factor, which is the perceived decrease in air temperature due to wind. It uses a graph to illustrate how wind speed affects the windchill factor on a 30°F day. The tutorial covers the basics of function inputs and outputs, showing how to read them from a graph. It provides examples of calculating the windchill factor given wind speed and determining wind speed from a given windchill factor.

What is the windchill factor?

• The perceived decrease in temperature due to wind.

• The actual temperature of the air.

• The increase in temperature due to sunlight.

• The humidity level in the air.

In the graph, what does the horizontal axis represent?

• Time of day.

• Wind speed in miles per hour.

• Windchill factor in degrees Fahrenheit.

• Temperature in Celsius.

What is the unit of the output variable in the windchill graph?

• Degrees Fahrenheit

• Kelvin

• Miles per hour

• Degrees Celsius

If the wind speed is 5 mph, what is the windchill factor?

• 15°F

• 30°F

• 5°F

• 25°F

What is the ordered pair for a wind speed of 5 mph and a windchill factor of 25°F?

• (30, 5)

• (5, 30)

• (25, 5)

• (5, 25)

If it feels like 15°F, what is the wind speed?

• 25 mph

• 30 mph

• 15 mph

• 5 mph

What is the ordered pair for a windchill factor of 15°F?

• (15, 5)

• (5, 15)

• (30, 15)

• (15, 30)

How do you find the input when given the output on the graph?

• Look at the horizontal axis and move vertically.

• Look at the vertical axis and move horizontally.

• Look at the diagonal axis and move horizontally.

• Look at the diagonal axis and move vertically.

What does the point (30, 15) on the graph represent?

• Wind speed of 5 mph and windchill factor of 30°F.

• Wind speed of 30 mph and windchill factor of 15°F.

• Wind speed of 15 mph and windchill factor of 30°F.

• Wind speed of 15 mph and windchill factor of 5°F.

What is the main takeaway from the video?

• Windchill factor is irrelevant to temperature.

• Windchill factor is a function of wind speed and affects perceived temperature.

• Wind speed does not affect perceived temperature.

• Windchill factor is only important in summer.