Search our library of GCSE questions

Top answers

All subjects

GCSE

A pendulum has a frequency of 0.80 Hz, calculate the periodic time of the pendulum.

You need to use the equation that relates frequency and period; period = 1/frequency

Then all you need to do is plug in the frequency to get the periodic time:

Answered by Mia V. • Physics tutor

17457 Views

Solve: 3(x - 2) = 21

First you look at BIDMAS, which determines the order in which functions are completed, [Brackets, Indices, Division, Multiplication, Addition, Subtraction], which says we deal with the brackets first, ...

Answered by Mia V. • Maths tutor

21347 Views

Explain why fluorine and chlorine are in the same group of the periodic table.

These elements are in the same group in the periodic table due to their electron configurations:

fluorine: 2, 7

chlorine: 2, 8, 7

They both have 7 electrons in...

Answered by Mia V. • Chemistry tutor

47483 Views

Expand and simplify (3x+2) (x-5)

We expand this term by term.

To make sure we expand every term, I use the beak method. To do this, draw 2 curves over the equation from the 3x to the

Answered by Dominic S. • Maths tutor

19873 Views

Are diffusion and osmosis the same thing?

Diffusion is defined as the movement of a substance from a high concentration to a low concentration, meaning they move from where there are lots of them to where there are fewer. Diffusion of these mo...

Answered by Eleanor B. • Biology tutor

8288 Views