Ten questions. The result tells you which lessons you may skip.
A screw has a pitch of \(0.5\,\text{mm}\) and \(50\) divisions on its circular scale. Its least count is
A student's readings of \(g\) agree with one another closely, but all are \(0.2\,\text{m/s}^2\) below the true value. The readings are
Taking the mean of many readings reduces
A spring balance reads \(-0.2\,\text{N}\) with nothing on it and \(9.6\,\text{N}\) with a load. The true weight of the load is
A length of \(4.00\,\text{m}\) is measured with an absolute error of \(0.02\,\text{m}\). The percentage error is
Readings of \(2.1\), \(1.9\) and \(2.0\,\text{s}\) have a mean of \(2.0\,\text{s}\). Their mean absolute error is
In \(g = 4\pi^2L/T^2\) the errors in \(L\) and \(T\) are \(1\,\%\) and \(2\,\%\). The error in \(g\) is
Two readings \(36.6 \pm 0.1\,\text{°C}\) and \(20.0 \pm 0.1\,\text{°C}\) give a rise of
A vernier of least count \(0.1\,\text{mm}\) has its zero just past the \(12\,\text{mm}\) mark, and line 4 coincides. The reading is
The slope of a line through readings is best found from