{"id":843,"date":"2019-05-02T19:47:29","date_gmt":"2019-05-02T18:47:29","guid":{"rendered":"http:\/\/www.mrsphysics.co.uk\/advanced\/?p=843"},"modified":"2025-11-25T07:37:55","modified_gmt":"2025-11-25T07:37:55","slug":"changes-in-ah-from-2019","status":"publish","type":"post","link":"https:\/\/mrsphysics.co.uk\/index.php\/2019\/05\/02\/changes-in-ah-from-2019\/","title":{"rendered":"Changes in AH from 2019"},"content":{"rendered":"\n

Firstly from me<\/p>\n\n\n\n

check out the prefixes you need. Notice anything different?<\/p>\n\n\n\n

\"\"
Yep, know your femto from you nano, and your Peta from your Tera!<\/figcaption><\/figure>\n\n\n\n

I am grateful to Ms K Ward from George Heriot’s School for trawling through the new and old curriculum and recording the changes. Thanks also for allowing me to reproduce it here.<\/p>\n\n\n\n

Assessment<\/h6>\n\n\n\n

Old assessment: 100 mark question paper, 30 mark project, plus pass all the units<\/p>\n\n\n\n

New assessment: 155 mark question paper, scaled to 120, 40 mark project (hence project is 25%)<\/p>\n\n\n\n

Changes to content:<\/h4>\n\n\n\n

The content is no longer divided into \u2018mandatory course key areas\u2019, \u2018suggested learning activities\u2019, and \u2018exemplification of key areas\u2019.  There is simply a list of the course contents.<\/p>\n\n\n\n

Where the wording has changed but I don\u2019t see any real difference, I have said \u2018no change\u2019. <\/p>\n\n\n\n

RMA<\/h6>\n\n\n\n

Kinematic relationships \u2013 no change<\/p>\n\n\n\n

Angular motion \u2013 derivation of centripetal acceleration equation is gone<\/p>\n\n\n\n

Rotational dynamics \u2013 no change<\/p>\n\n\n\n

Gravitation<\/h5>\n\n\n\n

–       \u2018Conversion between astronomical units (AU) and metres and between light-years (ly) and metres\u2019 \u2013 is new<\/p>\n\n\n\n

–       \u2018Consideration of the energy required by a satellite to move from one orbit to another\u2019 \u2013 is gone<\/p>\n\n\n\n

General Relativity<\/h6>\n\n\n\n

–       \u2018Knowledge that the escape velocity from the event horizon of a black hole is equal to the speed of light\u2019 \u2013 is new<\/p>\n\n\n\n

Stellar physics<\/h6>\n\n\n\n
\"\"
has changed to<\/figcaption><\/figure>\n\n\n\n
\"\"<\/figure>\n\n\n\n

Specific example of  a p-p chain is now given<\/p>\n\n\n\n

Hertzprung-Russell section is rewritten more clearly.<\/p>\n\n\n\n

Quanta and Waves<\/h6>\n\n\n\n

Introduction to quantum theory \u2013 no change<\/p>\n\n\n\n

Particles from space<\/h6>\n\n\n\n

–       \u2018Knowledge of the interaction of the solar wind with Earth\u2019s magnetic field\u2019 \u2013 is gone.  New document only mentions composition of solar wind.  Helical motion of charged particles is still there though, so it might not really matter.<\/p>\n\n\n\n

Simple harmonic motion (SHM)\u2013 no change<\/p>\n\n\n\n

Waves \u2013 <\/strong>no change<\/p>\n\n\n\n

Interference<\/h6>\n\n\n\n

Relationship for interference due to division of amplitude is now specified, 
opd=m\u03bb or (m+1\/2) \u03bb where m=0,1,2\u2026<\/p>\n\n\n\n

Polarisation \u2013 no change<\/p>\n\n\n\n

Electromagnetism<\/h4>\n\n\n\n

Fields<\/h6>\n\n\n\n

–       \u2018Knowledge of Millikan\u2019s experimental method for determining the charge on an electron\u2019 \u2013 this was in \u2018exemplification\u2019 before but is now specifically required knowledge<\/p>\n\n\n\n

–       \u2018Comparison of gravitational, electrostatic, magnetic, and nuclear forces in terms of their relative strength and range<\/strong>\u2019 \u2013 the words in bold are new<\/p>\n\n\n\n

Circuits<\/h6>\n\n\n\n

–       \u2018Knowledge that, in an RC circuit, an uncharged capacitor can be considered to be fully<\/p>\n\n\n\n

charged after a time approximately equal to 5\u03c4.  Knowledge that, in an RC circuit, a fully charged capacitor can be considered to be fully discharged after a time approximately equal to 5\u03c4.\u2019 \u2013 is new<\/p>\n\n\n\n

Electromagnetic radiation\u2013 no change<\/p>\n\n\n\n

Uncertainties<\/h4>\n\n\n\n

Knowledge and use of appropriate units, prefixes and scientific notation<\/h6>\n\n\n\n
Data analysis<\/h6>\n\n\n\n

–       \u2018Absolute uncertainty should normally be rounded to one significant figure. In some instances, a second significant figure may be retained<\/strong>.\u2019 \u2013 the words in bold are new.  It does not specify the instances in which a second figure may be retained.<\/p>\n\n\n\n

–       \u2018Knowledge that, when uncertainties in a single measurement are combined, an uncertainty can be ignored if it is less than one third of one of the other uncertainties in the measurement\u2019 \u2013 is new<\/p>\n\n\n\n

–       \u2018Knowledge that, when uncertainties in measured values are combined, a fractional\/percentage uncertainty in a measured value can be ignored if it is less than one third of the fractional\/percentage uncertainty in another measured value\u2019 \u2013 is new<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

–       The equation for the uncertainty in a value raised to a power is now given:
<\/p>\n\n\n\n

Evaluation and significance of experimental uncertainties<\/h4>\n\n\n\n

–       This short section is new<\/p>\n","protected":false},"excerpt":{"rendered":"

Firstly from me check out the prefixes you need. Notice anything different? I am grateful to Ms K Ward from George Heriot’s School for trawling through the new and old curriculum and recording the changes. Thanks also for allowing me to reproduce it here. Assessment Old assessment: 100 mark question paper, 30 mark project, plus…<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[79],"tags":[779,668,848,70,84],"ppma_author":[1267],"class_list":["post-843","post","type-post","status-publish","format-standard","hentry","category-coursematerials","tag-ah","tag-changes","tag-content","tag-physics","tag-sqa","vs-blog blog-single wow fadeInUp"],"acf":[],"authors":[{"term_id":1267,"user_id":3,"is_guest":0,"slug":"n5","display_name":"Mrs Physics","avatar_url":"https:\/\/mrsphysics.co.uk\/wp-content\/uploads\/2025\/12\/OK-scaled.png","author_category":"","first_name":"Mrs","last_name":"Physics","user_url":"","job_title":"","description":""}],"_links":{"self":[{"href":"https:\/\/mrsphysics.co.uk\/index.php\/wp-json\/wp\/v2\/posts\/843","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mrsphysics.co.uk\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mrsphysics.co.uk\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mrsphysics.co.uk\/index.php\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/mrsphysics.co.uk\/index.php\/wp-json\/wp\/v2\/comments?post=843"}],"version-history":[{"count":1,"href":"https:\/\/mrsphysics.co.uk\/index.php\/wp-json\/wp\/v2\/posts\/843\/revisions"}],"predecessor-version":[{"id":8286,"href":"https:\/\/mrsphysics.co.uk\/index.php\/wp-json\/wp\/v2\/posts\/843\/revisions\/8286"}],"wp:attachment":[{"href":"https:\/\/mrsphysics.co.uk\/index.php\/wp-json\/wp\/v2\/media?parent=843"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mrsphysics.co.uk\/index.php\/wp-json\/wp\/v2\/categories?post=843"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mrsphysics.co.uk\/index.php\/wp-json\/wp\/v2\/tags?post=843"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/mrsphysics.co.uk\/index.php\/wp-json\/wp\/v2\/ppma_author?post=843"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}