Igcse Model Questions Vol1 2020 Physics Question 21
Practice objective / multiple choice question 21 from the 2020 Igcse Model Questions Vol1 Physics examination.
A rectangular steel block has dimensions 10 cm \(\times\) 8 cm \(\times\) 5 cm. Its density is \(7800 \text{ kg m}^{-3}\) and its specific heat capacity is \(470 \text{ J kg}^{-1}\!\,^{\circ}\!\text{C}^{-1}\). A heating coil supplies \(5000 \text{ J}\) of energy, but 20% of this energy is lost to the surroundings. If the block starts at \(20^{\circ}\!\text{C}\), what is its final temperature (to one decimal place)?
Answer Options
About This Question
This is Igcse Model Questions Vol1 2020 Physics Question 21. It is one of the objective questions from the 2020 Igcse Model Questions Vol1 Physics examination.
Difficulty level: Medium .
Master the Exam!
You've seen a preview, but there are thousands more questions plus AI tutor to break down complex solutions.