Multiple choice general knowledge science & technology

A piece of iron has a temperature of 10°C. A second identical piece of iron is twice as hot. What is the temperature of the second piece of iron?

  1. 20°C

  2. 40°C

  3. 293ºC

  4. 273ºC

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

'Twice as hot' means doubling the absolute temperature. 10°C = 283K. Doubling gives 566K, which is 566 - 273 = 293°C. Note: option C has a typo (degree symbol should be °, not superscript °, but the value 293°C is correct).