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GCSE Physics - P4 explaining motion (OCR 21st C Science)

Improve your grade in your GCSE exam. Suitable for OCR 21st Century Science: Addtional Science or Physics A
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4 students enrolled
Created by Michael Hall
Last updated 4/2016
$19 $20 5% off
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  • 1.5 hours on-demand video
  • 1 Article
  • 2 Supplemental Resources
  • Full lifetime access
  • Access on mobile and TV
  • Certificate of Completion
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What Will I Learn?
improve grades in GCSE physics exams
describe forces on objects and their effects on motion
View Curriculum
  • no prior knowledge of GCSE physics required, we start from the basics
  • no software or additional materials required to take this course
  • all you need is a positive attitude and a desire to improve your physics grade
  • all you need is a positive attitude and a desire to improve your physics grade

If you need help with Physics, you're in the right place. The Physics Boot Camp team has decades of experience of helping students of all abilities improve their GCSE science grades.

This course includes video lectures for every section, downloadable worksheets (with answers) for practice and a summary quiz for each section. Before you spend money on a private tutor, try our course - you can access the course when and where it suits you and the whole unit costs less than one session with a tutor!

This course covers the unit P4 - Explaining Motion, which is part of the OCR 21st Century Science Additional Science or Physics A course. If this is not your exam board or course, then check out our instructor page for a suitable course for you.

In this unit you will learn about how forces affect motion, describing that motion and analysing the energy transfers involved.

We use our expertise from helping thousands of students to highlight the key areas that you need for your exam, along with helping you avoid the mistakes that everyone else makes!

Background music: Nicolai Heidlas - Summertime

Who is the target audience?
  • anyone taking the OCR 21st Century Additional Science or Physics (seperate science) exam
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Curriculum For This Course
Expand All 12 Lectures Collapse All 12 Lectures 01:18:56
P4 Explaining Motion - Overview
1 Lecture 02:01

This course is P4 - Explaining Motion which is suitable for anyone taking the OCR 21st Century Additional Science or Physics (A) exams.

We have divided the course into 3 sections:

  1. Forces and Motion
  2. Analysing Motion
  3. Energy Transfers

A quiz is included at the end of each section for you to check your progress.

Taking two minutes to complete our pre-course survey (see resources) will help us to help you in the future!

Preview 02:01
Forces and Motion
6 Lectures 38:40

Newton's laws of motion explain how things move. Don't worry that we're starting with the 3rd law, we'll cover the other two later. You also don't need to remember which law is which, or even that they are called Newton's laws, but I've kept the names as it's nice to give him credit!

Preview 07:35

Newton's 1st Law describes how the motion of an object is affected by balanced and unbalanced forces. This includes one of the biggest misconceptions in this unit which always catches students out on exam papers - don't fall into the same trap!

Preview 12:21

Newton's 2nd Law describes the relationship between force, mass and acceleration.

Newton's 2nd law

Knowing the difference between weight and mass is a skill that will help you avoid lots of confusion when confronted with a tricky question on the exam paper.

Weight, mass and gravity

Friction is something that we experience all day, every day. This session helps you to explain why it happens and how to increase or decrease it.


The reaction force was introduced in the session on Newton's 3rd law. Not many students can explain *why* it occurs, and this session will help you do that.

Reaction force

Forces and Motion
10 questions
Analysing motion
2 Lectures 13:12

After this session you should be confident in using and defining key terms such as speed, velocity and acceleration as well as using their equations.

Speed and acceleration

There are two motion graphs that you need to know: distance-time and velocity-time graphs. Students tend to find these straightforward when dealing with them separately but look at them together and it's chaos! This session will highlight the key features to look for so that you can cope with whatever type of motion graph is thrown at you in the exam.

Preview 08:45

Analysing motion
10 questions
Energy Transfers
3 Lectures 25:11

This session covers every aspect of momentum, from the mathematical calculations to the description of car safety features.


Energy transfers for falling objects are my favourite part of this unit! Regardless of whether you love this or hate it, this session would help you conquer this kind of question on your exam.


Energy Transfers
10 questions

BONUS: discount on other physics bootcamp courses
About the Instructor
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Physics Boot Camp

Michael has been teaching GCSE science for 13 years, specialising in Physics. Over that time, he has built up extensive knowledge of the GCSE curriculum, including marking for exam boards as well as helping thousands of students tackle their exams. Michael is one of the directors of Physics Boot Camp.

The team at Physics Boot Camp have decades of experience of helping students of all abilities to improve their GCSE Science grades. We use our expertise to highlight the key areas you need to know for the exam as well as helping you avoid the mistakes everyone else is making!

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