Ten questions. The result tells you which lessons you may skip.
A rope pulls a box with a force of \(10\,\text{N}\) at \(60°\) above the floor. What part of the force acts along the floor?
In the 3-4-5 triangle, \(\sin 37° \approx 0.6\). What is \(\cos 53°\)?
An angle has \(\sin\theta < 0\) and \(\cos\theta > 0\). In which quadrant does it lie?
An arc of \(0.5\,\text{m}\) on a circle of radius \(0.25\,\text{m}\) subtends an angle at the centre of
A quantity varies as \(y = 3\sin(10\pi t)\), with \(t\) in seconds. Its period is
Which of these is the same function as \(A\cos\omega t\)?
The value of \(2\sin 15°\cos 15°\) is
Tuning forks of \(300\,\text{Hz}\) and \(304\,\text{Hz}\) sound together. How many beats are heard each second?
Forces of \(3\,\text{N}\) and \(4\,\text{N}\) act at one point with \(90°\) between them. The size of their resultant is
For a swing of \(0.05\) rad, the value of \(\sin\theta\) is closest to