Top answers

Physics
GCSE

Could you explain the how an AC generator works?

Simply, a generator uses the rotation of a coil of wire in a magnetic field to produce electricity. 

(The principle of electromagnetic induction/ faraday's law : Any change in the magnetic environm...

Answered by Alvira Rachel K. Physics tutor
9817 Views

Give an example of a transverse and longitudinal wave.

Transverse wave - electromagnetic wave, waves on a string Longitudinal wave - sound wave, seismic P-waves

Answered by Daniel M. Physics tutor
8630 Views

What is a moment?

A moment is the product of a force and its perpendicular distance from a pivot in a rotational system. Moment = F x D

Answered by Benn C. Physics tutor
2952 Views

(IGCSE, Jan 2013, q8 adapted) The astronaut David Scott dropped a hammer and a feather from rest, at the same time and from the same height on the moon. The hammer and the feather landed at the same time. Why?

Central to this question is an understanding of the difference between an accelerating object and an object travelling at terminal velocity. Firstly, the experiment is carried out on the moo...

Answered by Nadya K. Physics tutor
4838 Views

Explain the resistance of and electrical component and what affects its value in a wire.

Resistance primarily is 'how difficult it is for an electron to travel through a material'. When the electron travels through a material, it collides with ions which causes it to lose ene...

Answered by John H. Physics tutor
2679 Views

We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo
Cookie Preferences