Top answers

All subjects
A Level

What is the difference between a scalar and a vector? Give 3 examples of each.

A scalar is a quantity that has only magnitude (size)
E.G Distance, Speed, Temperature
A vector is a quantity that has magnitude and a direction.
E.G Displacement, Velocity, Change in Tempe...

MK
Answered by Marcin K. Physics tutor
3667 Views

How to write a gov/pol essay

1. In the introduction you need to define the key term of the question, for example, one on pressure groups may focus on the success of one over another, or perhaps the 2015 curveball Orwell 'All press...

TB
24558 Views

What is meant by the term by cross-media?

CROSS-MEDIA is a media outlet that is present on multiple media platforms. For example, Sky News is a cross-media broadcaster as it has a TV show, and online website, social media and app...

CG
2767 Views

What is the difference between diegetic sound and non-diegetic sound?

DIEGETIC SOUNDThis is sound that is inside the world of the media text. It is 'real' sounds that are occuring inside the 'real' world of the media text. Examples of this would be cars dri...

CG
5994 Views

An electron falling from one energy level to another emits a photon of wavelength 550nm. What is the difference between the two energy levels?

The key equation is that of the energy of a photon.

E = hc/λ​ 

Using λ​ = 550nm gives E = 3.61x10^-19...

JL
Answered by Jamie L. Physics tutor
3320 Views

We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

MyTutor is part of the IXL family of brands:

© 2026 by IXL Learning