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Required Practicals
Possible methods and skills gained
The new practical programme
• 10 required pracs not assessed but may be on
the exam (paper 3) 10 hours
• Other pracs used ...
Required
Suggested
2.1 Motion
Methods Skills
Ball drop Use of interface
Card drop linearizing
Picket fence Graph plotting
Video analysis Use ...
3.1 Thermal concepts
Methods Skills
Method of mixtures (no need for
graph)
Use of thermometer/sensor
Electrical method (ke...
3.2 Modelling a Gas
Method Skills
Boyles law (with syringe and P sensor) Use of sensors
Charles law (with thin tube) Graph...
4.1 Travelling Waves
Method Skills
Pipe and audacity Use of audacity
Traditional pipes and tuning fork Careful adjustment
...
4.4 Wave behaviour
Method Skills
Glass block and ray lamp Use of spectrometer
Minimum deviation Analysis of digital photog...
5.2 Heating effect of electric current
Method Skills
Using resistance meters to measure
resistance
Use of meters
Nichrome ...
5.3 Electric Cells
Method Skills
Standard E and r method with ammeter
voltmeter and variable R
Use of meters and variable ...
7.1 Discrete energy & radioactivity
Method Skills
Beer foam decay Using log graphs
Simulation linearization
Flipping coins...
9.3 Interference (AHL)
Method Skills
Traditional set up Use of optical bench
Double slits and laser Use of laser
Hair and ...
11.2 Power generation and
transmission
Method Skills
Measuring input and output with
interface or oscilloscope
Soldering
U...
11.3 Capacitance
Method Skills
Any ideas?
Sample question 1
• The speed of sound in air, v, was measured at
temperatures near 0°C. The graph shows the data and
the ...
Sample question 2
• A student uses an electronic timer in an attempt to
estimate the acceleration of free fall g. She
meas...
Sample question 3
• In an experiment to measure the specific heat capacity of a
metal, a piece of metal is placed inside a...
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Required practicals

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Skills and methods for IB required pracs in Physics

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Required practicals

  1. 1. Required Practicals Possible methods and skills gained
  2. 2. The new practical programme • 10 required pracs not assessed but may be on the exam (paper 3) 10 hours • Other pracs used to develop skills and help understanding of concepts 30/10 hours • Investigation, assessed 10 hours • Gp4 project not assessed
  3. 3. Required
  4. 4. Suggested
  5. 5. 2.1 Motion Methods Skills Ball drop Use of interface Card drop linearizing Picket fence Graph plotting Video analysis Use of video simulations
  6. 6. 3.1 Thermal concepts Methods Skills Method of mixtures (no need for graph) Use of thermometer/sensor Electrical method (kettle) Data handling and uncertainties Lat ht of steam apparatus
  7. 7. 3.2 Modelling a Gas Method Skills Boyles law (with syringe and P sensor) Use of sensors Charles law (with thin tube) Graphing Pressure law (with P law apparatus) Uncertainties Adiabatic gas law apparatus simulations
  8. 8. 4.1 Travelling Waves Method Skills Pipe and audacity Use of audacity Traditional pipes and tuning fork Careful adjustment Pipes and oscilloscope Use of oscilloscope Two microphone method Use of interface
  9. 9. 4.4 Wave behaviour Method Skills Glass block and ray lamp Use of spectrometer Minimum deviation Analysis of digital photographs Algodoo Use of algodoo
  10. 10. 5.2 Heating effect of electric current Method Skills Using resistance meters to measure resistance Use of meters Nichrome wire (many gauges) soldering Resistivity paper (strips)
  11. 11. 5.3 Electric Cells Method Skills Standard E and r method with ammeter voltmeter and variable R Use of meters and variable resistor Investigating cells? Linearization and graphing Discharge of cell
  12. 12. 7.1 Discrete energy & radioactivity Method Skills Beer foam decay Using log graphs Simulation linearization Flipping coins Video analysis
  13. 13. 9.3 Interference (AHL) Method Skills Traditional set up Use of optical bench Double slits and laser Use of laser Hair and laser
  14. 14. 11.2 Power generation and transmission Method Skills Measuring input and output with interface or oscilloscope Soldering Use of interface Use of oscilloscope
  15. 15. 11.3 Capacitance Method Skills Any ideas?
  16. 16. Sample question 1 • The speed of sound in air, v, was measured at temperatures near 0°C. The graph shows the data and the line of best-fit. The error bars for temperature are too small to be shown.
  17. 17. Sample question 2 • A student uses an electronic timer in an attempt to estimate the acceleration of free fall g. She measures the time t taken for a small metal ball to fall through a height h of 0.50 m. The percentage uncertainty in the measurement of time is 0.3 % and the percentage uncertainty height is 0.6 %. • Using h=1/2gt2 calculate the expected percentage uncertainty in the value of g • State and explain how the student could obtain a more reliable value for g
  18. 18. Sample question 3 • In an experiment to measure the specific heat capacity of a metal, a piece of metal is placed inside a container of boiling water at 100 C °. The metal is then transferred into a calorimeter containing water at a temperature of 10 C °. The final equilibrium temperature of the water was measured. One source of error in this experiment is that a small mass of boiling water will be transferred to the calorimeter along with the metal. • Suggest the effect of the error on the measured value of the specific heat capacity of the metal • State one other source of error for this experiment.

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