P1 TOPIC 1 - Schudio

[Pages:60]PHYSICS REVISION CARDS

Science (9-1)

Combined Science / Physics Topics 1 - 7

physicsinfo.co.uk

Modified 06/11/2017/(PB)

PHYSICS INDEX

4 SI units in Physics 5 Scalar and Vector 6 Distance time Graph 7 Determining speed 8 Velocity time 9 Acceleration 10 Newton's 2nd Law 11 Momentum 12 Circular motion 13 Newton's 3rd Law 14 Stopping 15 Stopping distance (P) 16 K.E. & G.P.E. 17 Energy transfers 18 Energy storage 19 Efficiency 20 Sources of energy 21 Waves 22 Frequency, amplitude

22 Wave velocity 23 Measuring sound 24 Sound (Physics) 25 Ultrasound (Physics) 27 Measuring depth (Physics) 28 Refraction 29 Light and Colour (Physics) 30 T. I. R. (Physics) 31 Lenses (Physics) 32 Electromagnetic waves 33 Radiation (Physics) 34 Harm from EM waves 35 Uses of EM waves 36 Absorption / transmission 37 Global temperature (P) 38 Structure of the atom 39 Isotopes and ions 40 Ionising radiations 41 Background radiation

42 Radioactive decay 43 Decay examples 44 Models of the atom 45 Uses of radioactivity (P) 46 Risks of ionising radiation 47 PET scans (Physics) 48 Half life 49 Nuclear power (Physics) 50 Fission of U-235 (P) 51 Nuclear Fusion (Physics) 52 Weight and g (Physics) 53 Solar system (Physics) 54 Orbits (Physics) 55 Changing velocity (P) 56 Big Bang (Physics) 57 Life of a star (Physics) 58 Observing the Universe (P) 59 Equations to recall for P1 60 Equations to use in P1

The box on the bottom left identifies the Learning Outcomes, The on-line version of these Revision Cards contain links to relevant You Tube videos, web

pages and photographs, accessed by links at the bottom of each page.

GCSE Physics

Full details of this course are available from the Pearson website .

Revision materials, workbooks and past papers are always being added and the latest information should be available from physicsinfo.co.uk and

Combined Science is a double GCSE award with content from Biology, Chemistry and Physics. Students are awarded two ISBN 9781292131634 ISBN 9781292133706 grades between 9 and 1, with 9 being the highest and 1 the lowest, level 4 being the equivalent of an old C grade. Those studying Physics as a separate subject will receive just one grade.

Combined content will be examined at the end of the course in the summer of year 11 by two 1 hour 10 minutes papers in each subject area (6 in total). Each paper is worth 60 marks with papers all sat at either Higher or Foundation tier. Physics-only papers contain extra content with the two papers each worth 100 marks. Physics papers are 1 hour 45 minutes each.

Questions will be a mixture of multiple choice, short answer, calculations and extended openresponse questions (6 mark questions). There is a separate practical endorsement.

Paper 1 will test Topics 1-7 and Paper 2 will test Topics 8-15.

Topics highlighted in blue will only be tested in separate science Physics papers.

Topic 1: SI units in Physics

Name

Centi Milli Micro Nano Kilo Mega Giga

Symbol

c m n k M G

Multiple of base unit 10-2 10-3 10-6 10-9 103 106 109

Example units cm mm m nm kg MB GB

Number of zeros

0.01 0.001 0.000001 0.000000001 1000 1 000 000 1 000 000 000

Base unit metre kilogram second ampere kelvin mole

symbol When using standard

m

form you would usually quote your value to 3

kg

significant figures and

s

show consistency with

A

the number of decimal places

K

name Frequency Force Energy Power Radioactivity

unit symbol hertz Hz newton N joule J watt W

Bq

mol Remember: 60 seconds in 1 minute, 60 minutes in 1 hour.

Topic 2: Scalar & Vector

Scalar quantities have magnitude VECTOR quantities ? having magnitude and direction:

WEIGHT (V) (mass) (S)

(density) (S)

FORCE (V) (energy) (S)

2.1 2.2 2.3 2.4 2.5

VELOCITY (V) (speed) (S)

MOMENTUM (V) & energy (S)

ACCELERATION (V)

DISPLACEMENT

If you remember the 5 vectors, everything

else is scalar !

(weight is a force)

video video video

www www

DISPLACEMENT (V) (distance) (S)

photo

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Topic 2: Distance time graph

Speed is the gradient of a distance

vs. time graph

Velocity is speed in a stated direction

Formula you need to know: (Topic 4)

distance

Speed = time

NO !

v=x/t

(m/s) = (m) /( s)

Formula you need to know:

Distance = speed x time

X = v xt

(m/s) = (m) /( s)

2.6 2.7 4.6

video video video

www www

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Topic 2: Determining speed

You can use light gates

Remember that a light gate measures time (not speed). It has to be used with an interrupt card of known length and a computer for the results to be recorded as speed.

There's always the humble stop watch and

ruler

Some typical speeds:

Walker 1 m/s

Motorway 30 m/s

Sprinter 10 m/s

Cyclists 15 m/s

The wind speed in a gale is approx. 20 m/s The speed of sound in air is approx. 330 m/s The speed of light in a vacuum is approx. 300,000,000m/s

Human reaction time is about 0.25

secs

2.11 2.12 2.27

video video video

www www

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Topic 2: Velocity time graph

Distance travelled is the area under a velocity

vs. time graph

2.8 2.10

Acceleration is the gradient of a velocity

vs. time graph

Rapid acceleration Gradual acceleration

Formula you need to know:

velocity change Acceleration = time taken

a = (v-u) / t

(m/s2) = (m) /( s2)

video video video

www www

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