The diagram shows two blocks of copper \(\text P\) and \(\text Q\) which are in contact.
The initial temperature of \(\text P\) is \(60^\circ \text C\) while the initial temperature of \(\text Q\) is \(30^\circ \text C\).
Which of the following statement is true while \(\text P\) and \(\text Q\) are in thermal equilibrium?
(A)
The rate of heat flow from block \(\text P\) to block \(\text Q\) > The rate of heat flow from block \(\text Q\) to block \(\text P\)
(B)
The rate of heat flow from block \(\text P\) to block \(\text Q\) = The rate of heat flow from block \(\text Q\) to block \(\text P\)
(C)
The rate of heat flow from block \(\text P\) to block \(\text Q\) < The rate of heat flow from block \(\text Q\) to block \(\text P\)
What is the tool used to measure temperature?
A cake is placed in a hot oven. The temperature of the cake is the same as that of the oven after several minutes.
Which concept explains the situation?
Source: SPM 2012
The diagram shows a graph of length against the temperature of a thermometer placed in liquid \(\text Z\).
Calculate the temperature of liquid \(\text Z\).
(A) \(16.24 ^\circ \text C\)
(B) \(17.24 ^\circ \text C\)
(C) \(18.24 ^\circ \text C\)
(D) \(19.24 ^\circ \text C\)
Which of the following is a good use of a liquid in a thermometer to measure the temperature of \(-50 ^\circ \text C\) till \(50 ^\circ \text C\)?
Freezing point (\(\bf {^\circ \text C}\))
Boiling point (\(\bf {^\circ \text C}\))
\(-115\)
\(78\)
\(-39\)
\(357\)
\(0\)
\(100\)
(D)
\(17\)
\(118\)
There is something wrong with this question.
