doPhysics.in
All chapters
Functions and Graphs · Already know this?

Ten questions, one verdict per topic

Answer all ten without looking anything up. The result tells you, topic by topic, which lessons you may skip and which you should read.

Already know this?

Ten questions. The result tells you which lessons you may skip.

1

Which of these does not give \(y\) as a function of \(x\)?

2

The graph of \(y = f(x - 3)\) is the graph of \(y = f(x)\)

3

A straight x-t graph passes through \((2\,\text{s}, 10\,\text{m})\) and \((6\,\text{s}, 30\,\text{m})\). The velocity is

4

On a graph of stopping potential against frequency, the slope is

5

A car's stopping distance at a fixed deceleration is \(u^2/2a\). If the speed is doubled, the stopping distance becomes

6

A ball is thrown straight up with \(h = 30t - 5t^2\) metres. The top of its flight is

7

A gas at a fixed temperature has its volume halved. Its pressure

8

A satellite is three Earth radii from the Earth's centre. With \(g = 9.8\,\text{m/s}^2\) at the surface, its acceleration towards the Earth is about

9

The area between a v-t graph and the time axis over an interval is

10

The distance between the points \((0, 0)\) and \((6\,\text{m}, 8\,\text{m})\) is