Grade+8+Physics++autumn+2014


 * Grade 8 Physics Autumn 2014 **

Click here for Ilmiö translations - username student.student. Password given in class (you probably wrote it at the front of your notebook....)

To complicate things this year, there are three groups, all of which have a mix of 8a and 8b so I shall call you, simply Tue, Wed and Fri. For details about individual groups see the text in red. (what you should know) || ==Resources== || ==Homework== || ==Deadline== || Forces as pushes and pulls: interactions between objects. Measuring forces using newtonmeters. The unit of force. Representing forces using arrows to show direction and size. WED, FRI - we didn't quite cover all of this! || * explain how forces can be shown on diagrams as arrows with a size and direction 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? || * safely carry out an experiment stretching a rubber band The difference between weight and mass
 * ==Week/date== || ==Activity== || ==Learning outcomes==
 * 33 11 Aug || TUES, FRI: Safety rules and intro to IB ||  ||   ||   ||   ||
 * 34 18 Aug || What are forces ?
 * draw force arrows on diagrams showing simple, everyday situations
 * measure forces using newtonmeters
 * correctly adjust the newtonmeters to measure horizontal and vertical forces || [[file:Force diagrams.docx]] ||  ||   ||
 * 35 25 Aug || Can an elastic band be used as a newtonmeter?
 * record data accurately in a correctly labeled results table
 * plot data on a graph
 * draw a conclusion from the graph
 * explain how a scale will need to be calibrated before a device can be used to take measurements ||  || Conclusion for the experiment || Next lesson ||
 * 36 1 Sep || Using data to show relationships; scales and their origin || * list some basic measurements and give their units
 * consider the need for basic measurements which are standard internationally
 * discussing the conclusion for the rubber band experiment; non-linear scales can be used but are more difficult to set up (calibrate) || Ilmiö p.158 ||  ||   ||
 * 37 8 Sep || Force, acceleration and g

Freefall and weightlessness || * g is the acceleration due to gravity, or the gravitational field strength
 * weight and mass are two different things
 * we feel g forces when we accelerate
 * acceleration is a change of speed/direction || Old video - Freefall

What if you were born in space ? - VSauce ||  ||   ||
 * 38 15 Sep || Salt and upthrust

This is the first lesson of two in which you will investigate how the concentration (konsentraatio) of salt in water changes its upthrust. The task sheet gives you details of what to investigate, and the report writing frame gives you the structure. You will work in pairs and should carefully plan and discuss before starting to collect results. Check your plans with me before you start! || * use scientific vocabulary
 * identify the variables in an experiment
 * design a safe, reliable experiment
 * work collaboratively with you partner || Floating in the Dead Sea

Sheets with errors corrected:



||  || Lesson in week 40 ||
 * 39 22 Sep || Completing the experimental work from last lesson. || * As week 38
 * collect sufficient data (at least 5 concentrations)
 * plot data on a graph
 * use your graph to make a conclusion relating to your hypothesis
 * evaluate the success of your method ||  ||   ||   ||
 * 40 29 Sep || Resultant forces and movement || * Newton's Law (First): an object carries on at a steady speed unless acted on by an unbalanced force
 * F= ma
 * Calculating resultant forces
 * explain what is meant by acceleration (not calculations yet) || ** Friday group has its lesson on Tuesday **** Wednesday lesson is 'normal' **
 * on Friday all groups will be together in Karin's room**

Ilmiö chapter 3 Vuorovaikutus ja voima, p. 151- 157 ||  ||   ||
 * 41 6 Oct || University project week.

During lesson time, those in school will be doing a project here. ||  || **If you are not involved in the trip to the university during lesson time, then:**
 * Tuesday group : go to main computer room**
 * Wednesday group: go to technology computer room**
 * Friday - all students together in Karin's room**

Tues - see week 40 Friday: Kinetic and gravitational potential energy - what are they and how are they calculated ? Roller coasters and energy. || calculate gravitational potential energy using mgh Roller coasters and energy.
 * Fosbury** ||  ||   ||
 * 42 13 Oct || Weds - no lesson
 * calculate kinetic energy using 1/ 2 mv 2
 * explain why the loops on unpowered roller coasters decrease in height along the ride ||  ||   ||   ||
 * 43 20 Oct || Autumn break ||  ||   ||   ||   ||
 * 44 27 Oct || Winter sport task ||  || [[file:Gr 8 Physics Sport and Friction 2014.doc]] ||   ||   ||
 * 45 3 Nov || Kinetic and gravitational potential energy - what are they and how are they calculated ?

Friday group: The Tortoise and the Hare - who was faster ?

Discussing speed; instantaneous speed, average speed; velocity. Vectors and scalars. Using graphs to show movement (distance-time and velocity-time). || calculate gravitational potential energy using mgh Wednesday forum Friday forum ||  ||   ||
 * calculate kinetic energy using 1/ 2 mv 2
 * explain why the loops on unpowered roller coasters decrease in height along the ride || Tuesday's forum
 * 46 10 Nov || The Tortoise and the Hare - who was faster ?

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

[|Tuesday forum] Wednesday forum Friday forum ||  ||   ||
 * 47 17 Nov || Calculating acceleration

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 || [[file:Grade 8 Physics Revision List 2014.docx]]

Tuesday forum [|Wednesday forum] Friday forum ||  ||   ||
 * 48 24 Nov || Test week ||  ||   ||   ||   ||
 * 49 1 Dec || Forces, energy and road safety ||  || Google self-driving car ||   ||   ||
 * 50 8 Dec ||  ||   || Isaac Newton Rap ||   ||   ||
 * 51 15 Dec ||  ||   ||   ||   ||   ||