Search our library of GCSE questions

Top answers

All subjects

GCSE

How do Transformers work?

Transformers are two coils of wire, coiled around each side of an iron core (primary and secondary). The primary coil has a potential difference supplied to it that drives the alternating current through ...

Answered by Niusha S. • Physics tutor

7666 Views

How do you use Substitution to solve simultaneous equations?

For the equations 3x + 2y = 4 (1) and 4x + 5y = 17 (2), isolate one of the unknowns in one equation to one side, like so: 3x = 4- 2y. Next multiply the equations so that this unknown is the same in both. ...

Answered by Niusha S. • Maths tutor

3237 Views

Name a composer from the Baroque period

Bach; Monteverdi; Handel; Scarlatti; Albinoni; Corelli

Answered by Anita M. • Music tutor

4570 Views

Work out 2^14 ÷ (2^9)^2 in its simplest form

2¹⁴ ÷ (2⁹)²I would start with the second part of this equation as that looks like it needs simplifying. When 'powers of' are in brackets to each other, they are multipled ...

Answered by Sion D. • Maths tutor

7321 Views

60 students were taking a Maths, Physics or Chemistry exam. 38 of the students were male. 11 of the 32 students who were taking the Maths exam were female. 8 males were taking the Physics exam. 12 students were taking the Chemistry exam. One of the fe

60-38 = 22 females 32+12=44 students taking the Chemistry and Maths exam. Therefore 60-44=16 students were doing the Physics exam, so 16-8= 8 females were taking the Physics exam. This means that 22-11-8 ...

Answered by Harry B. • Maths tutor

3036 Views