Grade+8+Physics+spring+2014

For Ilmiö translations and full IB criteria, click here

Word lists can be downloaded here:

Your guiding question: Area of interaction:

(what you should know) || ==Resources== || ==Homework== || ==Deadline== || Experiment - can a rubber band be used as a newton meter ? Stretching a rubber band and recording the extension. How can this information be used to make the rubber band into a newtonmeter so that forces could be measured? || * some equipment needs to be calibrated before use DO NOT draw a line, simply add the data || For next lesson || Analysing results from rubber band experiment. Drawing a line of best fit onto a graph - why is real data different to a mathematical model. Accuracy, precision
 * ==Week/date== || ==Activity== || ==Learning outcomes==
 * 2 6/1/14 || **Lesson 1**
 * Introducing forces** || * forces change, or try to change movement
 * Newton's Law (First): an object carries on at a steady speed unless acted on by an unbalanced force
 * Representing forces as arrows showing size and direction ||  ||   ||   ||
 * 3 13/1/14 || **Lesson 2**
 * correctly use a newtonmeter to measure forces
 * understand why a newtonmeter will give a different reading for vertical and horizontal forces
 * tables of results should include check readings
 * columns should be labelled with Quantity/ unit eg force/N or extension/cm ||  || Complete a graph to show the data collected.
 * 4 20/1/14 || **Lesson 3**

This task will be assessed for criteria B,D,E and F. The criteria are available from the link at the top of the page The investigation will take two lessons, plus homeworks || * constructing lines of best fit on graphs
 * Can salt be used to measure upthrust ?**An investigation which you will plan in pairs and carry out to find out if you the changing the concentration of salt in water will increase the upthrust of the liquid, and if this could be used to measure force.
 * identifying anomalous results
 * using continuously varying data
 * explain why a smooth line of best fit is used for continuous data || [[file:Drawing lines of best fit.pptx]]

Task sheet Report writing frame ||  || Deadlines:

8a AND 8b 14 Feb 10.15 || for SALT investigation
 * 5 27/1/14 || **Lesson 4 -salt investigation continued** ||  ||   ||   ||   ||
 * 6 3/2/14 || **Lesson 5 -**
 * salt investigation continued** ||  ||   ||   || **Deadline:**
 * 8a AND 8b 14 Feb**
 * 10.15** ||
 * 7 10/2/14 || **Lesson 6**
 * for 8A only** ||  || [[file:Physics of Ski jumping.docx]]

Deadline for this task: end of the lesson ||  || **Deadline:** for SALT investigation Friction. the stages of ski jumping - where it is useful and not useful. Winter sports and friction eg ski waxing for traditional cross country skiing. || * friction is a force which slows down movement
 * 8a AND 8b 14 Feb**
 * 10.15** ||
 * 8 17/2/14 || **Lesson 7**
 * friction in air is called air resistance or drag
 * in many sports, controlling friction is extremely important eg ski jumping, swimming || Women's ski jump results, Sochi

Ski jumping science

ski jumping Thomas Morgenstern crash

curling ||  ||   ||
 * 9 24/2/14 || **Lesson 8**
 * 8A in week 9; centre of gravity of Finland activity not done with 8A**

Discussing balance and centre of gravity (mass) The types of equilibrium: stable, unstable and neutral Finding the centre of gravity of 'Finland' Use a cut out map of Finland, and hang it from three points. Mark on the vertical lines which pass through the centre of mass. Mark these on the map and where they cross should give the centre of mass. || * identifying the centre of gravity in symmetrical objects 11/3/14 || **Lesson 9**
 * 8B in week 11**
 * explain why objects fall over, using the idea of centre of gravity
 * carry out an experiment to find where the centre of gravity is in a cardboard shape
 * evaluate the experiment || [[image:http://c1.wikicdn.com/i/mime/32/application/vnd.openxmlformats-officedocument.wordprocessingml.document.png caption="finland map.docx" link="file:karinparker/finland map.docx"]][[file:karinparker/finland map.docx|finland map.docx]]
 * [|Details]
 * [[file:karinparker/finland map.docx|Download]]
 * 733 KB || None set for 8A. 8B _ evaluate the experiment ||  ||
 * 10 || Ski break ||  ||   ||   ||   ||
 * 11
 * 8B lesson - see in week 9 above.**

Pressure - understanding what the physics term means P=F/A Consequences and examples of pressure: snow shoes, thumb tacks Atmospheric pressure, tyre pressure Units N/m 2 or Pa but there is a variety of other units (see Pressure units sheet) || * understand how pressure is created using particles Ilmiö chapter 7 Paine ja noste p.179-182
 * recall that air moves from regions of high to low pressrue
 * identify common pressure units
 * explain common situations where pressure has effects eg the weather || I

Pressure units

Sample weather charts - current maps || Read the Ilmiö chapter for next lesson ||  ||
 * 12 17/3/14 || **Lesson 10**
 * 8A on 21/3**
 * 8B on 26/3**

Density - how to find it units g/cm 3 or kg/cm 3 Difference between mass and weight g, the gravitational strength on different planets. weight = mass x g How different masses would feel on different planets Weightlessness and freefall. g- froces when going round corners/accelerating. || * define and calculate density
 * use correct units for density
 * explain the difference between mass and weight
 * calculate weight knowing mass and 'g'
 * explain why astronauts in the space station are experiencing freefall and not true weightlessness
 * identify situations where g forces occur and weight appears to increase || Ilmiö chapter 5 Tiheys p. 167-

Video clip 'freefall' - see me for this

Ilmiö chapter 4 massa ja paino p.159 -

Red Bull Races g-forces

amusing (unless you are the victim) g force training ||  ||   || The Tortoise and the Hare - who was faster ?
 * 13 25/3/14 || **Lesson 11** :

Discussing speed; instantaneous speed, average speed; velocity. Vectors and scalars. Using graphs to show movement (distance-time and velocity-time). || * explain the difference between average and instantaneous speed Usain Bolt sprint data d-t graph Usain Bolt's 100m record, Berlin 2009 ||  ||   ||
 * use the terms speed and velocity correctly
 * show movement on distance-time graphs and velocity-time graphs
 * perform simple calculations to find speed
 * convert between speed units: m/s and km/h
 * || Ilmiö chapter1 p. 135 Uniform motion
 * 14 31/3/14 || **Lesson 12**:

Accelerated motion Using graphs to show acceleration. Calculations. || * explain what is meant by acceleration
 * give the correct unit for acceleration(m/s 2 )
 * calculate acceleration
 * acc. = D v/ D t ||  || Ilmiö p. 148 ODD numbered questions ||   ||
 * 15 7/4/14 || Lesson 12 continued ||  ||   ||   ||   ||
 * 16 14/4/14 || Lesson 12 continued ||  ||   ||   ||   ||
 * 17 21/4/14 || **Lesson 13**: for 8A on Friday; for 8B next week on Tuesday

This week 8B have a trip

Kinetic and gravitational potential energy - what are they and how are they calculated ? Roller coasters and energy. || calculate gravitational potential energy using mgh
 * calculate kinetic energy using 1/ 2 mv 2
 * explain why the loops on unpowered roller coasters decrease in height along the ride ||  ||   ||   ||
 * 18 28/4/14 || **Lesson 13** for 8B, no lesson 8A ||  ||   ||   ||   ||
 * 19 29/4/13 || **Lesson 14**:

Power and work calculations || use the formula work = force x distance
 * use the formula power = work/time
 * calcualte work and power, using the correct units, for a variety of situations such as lifting and pushing || Ilmiö chapter 8 Työ ja teho ||  ||   ||
 * 20 5/5/14 ||  || TEST - CLOSED book. Notebooks are not allowed. ||   ||   ||   ||
 * 21 12/5/14 ||  ||   ||   ||   ||   ||
 * 22 19/5/14 ||  ||   ||   ||   ||   ||
 * 23 26/5/14 ||  ||   ||   ||   ||