Physics - Section 2 - UKCAT, BMAT and Medical Interview ... · PDF fileIntroduction to Section 2 Section 2 of the BMAT is based around GCSE level Biology, Chemistry, Physics and Maths

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Physics - Section 2BMAT Course Book

BMAT Science Revision

Mock Questions

Step-by-Step Guides

Detailed Explanations


Lesson Page

Lesson 1: Introduction to BMAT Physics 3

Lesson 2: Waves I - Frequency & Amplitude 6

Lesson 3: Waves II - Light 11

Lesson 4: Waves III - Sound 15

Lesson 5: Waves IV - Electromagnetic Spectrum 17

Lesson 6: Electricity I - Electrostatics 22

Lesson 7: Electricity II - Current & Voltage 25

Lesson 8: Electricity III - Power & Transformers 37

Lesson 9: Energy I - Work Done & Power 42

Lesson 10: Energy II- Kinetic & Gravitational Potential 47

Lesson 11: Density 53

Lesson 12: Electromagnetism 56

Lesson 13: Radioactivity 59

Lesson 14: Physics - Extra Topics 60

Table of Contents

Introduction to Section 2

�Section 2 of the BMAT is based around GCSE level Biology, Chemistry, Physics and Maths. The content is GCSE-level, but they tend to ask difficult questions which stretch your GCSE knowledge to their extremes.

In this section you get:

• Chemistry (6 to 8 questions)• Physics (6 to 8 questions)• Biology (6 to 8 questions)• Maths (5 to 7 questions)

How do I prepare for this section?

• Brush up on your GCSE knowledge. In this book we have covered the main topics, but it is worth reading the official BMAT Revision Guide on their website (free). It is similar to the CGP books, and goes through content in full detail.

• Don’t revise everything GCSE. The BMAT specification tells you what you need to know. It is not the full GCSE specification, so don’t waste time on irrelevant topics. Also, use our guides on the most testable topics to structure your revision and focus on the important topics first.


Introduction to BMAT PhysicsLesson 1

Appreciate the various Physics topics tested in the BMAT, and the past trends from BMAT papers.

• Don’t panic about Physics. Many BMAT students have not taken A-level Physics. Even if your Physics is rusty, don’t stress. By going through our book, step by step, and supplementing it with extra revision guides, you will master the Physics section.

Medic Mind Approach to Section 2

In this book each Section 2 subsection is broken down into 3 parts:

1. BMAT Specification - this is an extract from the official BMAT specification for Section 2. We extracted the points relevant to the particular tutorial. Most of the specification is covered in this book, but not all of it. We have focused on the most important and commonly tested elements of the specification.

2. Medic Mind Tips and Theory - in each tutorial we revise and summarise the key topics that come up. We have analysed all BMAT papers since 2009 (when the specification changed), to assess the most important topics.

3. Practice Questions - there are 1 to 5 practice questions per topic, found at the end of the tutorial. This should help you consolidate your learning by doing a BMAT style question (written by Medic Mind).

How should I build on this course?

After this course:

• Re-cap the BMAT specification and read the official BMAT free guide to fill gaps in your knowledge. Go through the specification and learn the science and maths content in full detail. We do not cover all topics in the specifications - this is a revision guide based on the most commonly tested topics. Therefore you should use the Official BMAT Revision Guide (found online) and the specification to supplement your learning here.

• Do the past papers using our compilations. On our website we have compiled every past paper question by topic (www.medicmind.co.uk/resources). These will be released on 1st October 2017. So, for example, after you learn Electromagnetism in this book, do the past paper questions on this same topic using our compilations.


Introduction to BMAT Physics Lesson 1

http://www.medicmind.co.uk/resources

Commonly Tested Physics Topics

The table below shows the frequency of the Maths topics which we will cover in this book. The BMAT Specification changed in 2009, so the figures are based on post 2009 BMAT Official Papers.

*Full tutorials can be found in the 2nd Edition of this Book, published on 1st October 2017. You can find this version on your Online Study Hub, along with tutorial videos for all lessons.

Lesson Topic Number of Questions (since 2009*)

2 Waves I: Frequency & Amplitude 7

3 Waves II: Light 1

4 Waves III: Sound -

5 Waves IV: Electromagnetic Spectrum 3

6 Electricity I: Electrostatics -

7 Electricity II: Current & Voltage 7

8 Electricity III: Electrical Power & Transformers 3

9 Energy I: Work Done & Power 4

10 Energy II: Kinetic & Gravitational Potential 5

11 Density 2

12 Electromagnetism 2

13 Radioactivity* 9

14 Physics: Extra Topics*


Introduction to BMAT Physics Lesson 1

BMAT Specification

• Wave nature:

a. transfer of energy without net movement of matter b. transverse and longitudinal waves c. examples (including electromagnetic waves, sound, seismic) d. amplitude, wavelength, frequency and period e. frequency=1/ period; the SI unit of

frequency is hertz (Hz), 1Hz means one wave per second e. speed = distance/time f. wave speed = frequency × wavelength.

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Medic Mind Tips and Theory

There have been 11 questions on Waves since 2009.

The topic of waves consists of many subtopics, so let us break these 11 questions down. There have been:

• 7 questions on the Speed, Frequency, Wavelength and Amplitude of Waves • 3 questions on the Electromagnetic Spectrum• 1 question on Light• 0 questions on Sound

Amplitude, Wavelength and Frequency

Amplitude is a measure of the energy of the wave. It shows the maximum displacement of particles from rest position.

• You measure amplitude as the distance from the equilibrium point to the maximum high point in the crest, or the minimum low point in the trough.


Waves I: Frequency & AmplitudeLesson 2

Understand and calculate the properties of waves, including amplitude, wavelength, frequency and period.

Wavelength is the distance between two successive crests in a wave.

• You can measure wavelength as the distance between two crests, or between two troughs.

Frequency is a measure of the number of waves per second.

• When measuring frequency we use the units Hertz. 1 Hertz equates to 1 wave per second.

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Wave Period is the time taken (s) for one full wave cycle.

• Frequency, the number of waves per second, is therefore 1 / period.

Wave Speed

We can calculate the speed of waves using the usual speed, distance, time formula.

Speed = Distance / Time

The distance of a wave equates to wavelength.

The time equates to period. Instead of using period, however we use the equivalent which is 1 / Frequency.

Therefore we can rearrange to form:

Wave Speed (m/s) = Frequency (Hz) x Wavelength (m)


Waves I: Frequency & Amplitude Lesson 2

Wave Speed in different media

The frequency of a wave is not dependent on the medium. Whereas the wavelength and speed can change depending on the medium (e.g. light travels slower through glass).If frequency is constant, then a fall in speed must mean that there has been a fall in wavelength, and vice versa.

When light travels through glass, both the speed and wavelength fall.

Transverse and Longitudinal

Waves transfer energy from one place to another. They do not involve transfer of actual matter. Waves can be transverse or longitudinal:

• Transverse waves vibrate at 90 degrees to the direction of the wave. Examples are light waves and waves in the Electromagnetic Spectrum.

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• Longitudinal waves vibrate in the same direction as the direction of the wave. An example is sound waves.

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Practice Questions

Question 1

A wave travels through air at a speed of 4.2 x 109 m/s and has a wavelength of 2.1 x 109 nanometers. What will be the wavelength, frequency and speed of the same wave through water?

107 nanometres = 1cm

Speed (m/s) Frequency (Hz) Wavelength (nm)

A 2.1 x 109 2 x 109 1.05 x 109

B 2.1 x 109 2 x 109 2.1 x 109

C 2.1 x 109 1 x 109 1.05 x 109

D 2.1 x 109 1 x 109 2.1 x 109

E 4.2 x 109 2 x 109 1.05 x 109

F 4.2 x 109 2 x 109 2.1 x 109

G 4.2 x 109 1 x 109 1.05 x 109

H 4.2 x 109 1 x 109 2.1 x 109



Question 2

The graph below shows the sound wave produced by a ticking clock.

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Which of the following statements are true?

1. The amplitude of the wave is 6 cm. 2. The frequency of this wave is 0.25 Hz.3. The wavelength of the wave is 4 mm. 4. The speed of this wave is 0.01 m/s.

A. 1 and 3B. 2 and 4C. 1 and 3D. 1, 2 and 4E. 2, 3 and 4F. 1, 2 and 3G. All of them

Dis

plac

emen

t (cm

)

Time (s)



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Physics - Section 2 - UKCAT, BMAT and Medical Interview ... · PDF fileIntroduction to Section 2 Section 2 of the BMAT is based around GCSE level Biology, Chemistry, Physics and Maths