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Everyday Science Mcqs

At what temperature are Celsius and Fahrenheit equal?

Everyday Science Mcqs /
At what temperature are Celsius and Fahrenheit equal?

A. -40 degree
B. 40 degree
C. -10 degree
D. 10 degree

The formulas for converting between degree Celsius and degree Fahrenheit are:
°F = (°C * 9/5) + 32
°C = (°F – 32) * 5/9
To find the temperature when both are equal, we use an old algebra trick and just set ºF = ºC and solve one of the equations.
°C = (°C * 9/5) + 32
°C – (°C * 9/5) = 32
-4/5 * °C = 32
°C = -32 * 5/4
°C = -40
°F = (°F * 9/5) + 32
°F – (°F * 9/5) = 32
-4/5 * °F = 32
°F = -32 * 5/4
°F = -40
So the temperature when both the Celsius and Fahrenheit scales are the same is -40 degrees.

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Everyday Science Mcqs

When Pluto was cast out from the list of Planets?

Everyday Science Mcqs /
When Pluto was cast out from the list of Planets?A. September 24, 2006
B. April 28, 2004
C. January 26, 2006
D. August 24, 2006

The International Astronomical Union (IAU) downgraded the status of Pluto to that of a dwarf planet because it did not meet the three criteria the IAU uses to define a full-sized planet. Essentially Pluto meets all the criteria except one- it “has not cleared its neighboring region of other objects.”
In August 2006 the International Astronomical Union (IAU) downgraded the status of Pluto to that of “dwarf planet.”

When Pluto was cast out from the list of Planets? Read More »

Everyday Science Mcqs