| Investigation/Project |
Software |
djb hardware |
Comment |
| Comparison of Internal Resistance of different cell types. |
Investigator |
|
|
| Comparison of the life of a different cells under load conditions. |
Investigator |
|
|
| Comparison of Power/Load graphs of solar cells in series & parallel. Examine how light level affects Power/Load graph. |
ALBA software for manually entering results |
Solar Cell Investigations Board |
|
Efficiency of a motor under different:
a) applied voltages
b) mechanical loads. |
Efficiency of a Motor, Disk 5 |
ALBA Joule& Watt Meter |
|
Examination of
a) different fuse types
b) different fuse values
and the rupture current. |
Investigator |
Requires low value, high wattage shunt. |
|
| Compare different types of mains lamps (e.g. standard, longlife, daylight, energy saving) and their brightness, running costs, manufacturers stated life |
Power_Energy_Cost Software. |
Power-Energy-Cost Meter
Light Sensor |
|
| Measurement of self inductance and factors that affect it. |
Inductors and DC, Disk 4 or the Investigator. |
DC Investigations Board |
|
| Investigate the behaviour of inductors under AC conditions. |
Disk 3 |
Inductors for Disk 3 Applications |
|
| Low pass filters. |
Disk 3 |
Decade capacitance unit |
|
| Series and parallel resonance. |
Disk 3 |
Decade capacitance unit + Inductors |
|
| Investigate the speed of a toy train and voltage applied to track. |
Introduction to Speed, Disk 2 |
Light Gate |
|
| Examine and measure the cooling effect of different heat sink designs. |
Investigator |
Temperature Probe |
Could use IR thermometer and take reading manually. |
| Factors affecting electromagnetic braking. |
Introduction to Acceleration, Disk 2 |
Light Gates |
|
Relationship between magnetic force and
a) current
b) field strength
c) number of turns
d) core.
|
Balance Software |
Electronic Balance + Field Strength Sensor |
|
| Investigate the effect of a magnetic field on the growth rate of plants. |
|
Field Strength Sensor |
Could use a digital camera to measure growth. |
Camera Experiments:
Relationship between Brightness and:
a) f number
b) shutter speed |
Investigator |
Light sensor |
|
Relationship between pitch and :
a) tension
b) length
c) mass/unit length |
G-Tune from jhc-software.com-see Note 1
Free demo version |
Microphone |
Uses Fast Fourier Transforms and displays the frequency + harmonics |
| Examination of harmonics produced by different instruments |
G-Tune from jhc-software.com-see Note 1
Free demo version |
|
Uses Fast Fourier Transforms and displays the frequency + harmonics |
| Comparison of harmonics on a keyboard and a 'real' instrument |
G-Tune from jhc-software.com-see Note 1
Free demo version |
|
Uses Fast Fourier Transforms and displays the frequency + harmonics |
| The effect of loudness of music on reaction time among males and females |
Gap Timer Disk 2 |
Reaction Timer Switches |
This will also work with TSA. |
| Determine the mathematical relationship between the pitch of a note in a glass filled with water and the depth of the water. |
G-Tune from jhc-software.com-see Note 1
Free demo version |
|
Uses Fast Fourier Transforms and displays the frequency + harmonics |
| Relationship between insulation thickness and heat loss. |
Investigator |
Temperature Probe |
Could use IR thermometer and take temperature manually. |
| Effect on SHC error when starting well above room temperature. |
SHC software on Disk 5 |
ALBA Joule & Watt Meter |
|
| Measure the efficiency of a low voltage light bulb. |
Investigator |
ALBA Joule & Watt Meter + temperature probe + Input extension unit |
|
| Set up an investigation to see if sugar concentrations in water can be found using the index of refraction of the solution |
|
|
Ideal experiment for RayZer Lightbox |
Comparison of Static Friction and :
a) different surfaces
b) different shapes (area) |
Investigator |
Force Sensor |
|
Investigate the period of a pendulum and :
a) length
b) mass |
Event Timer - Disk 2 |
|
|
Projectile Experiments using ramp type launch
Investigate
a) energy conversions
b) range and release height
c) range and release velocity
d) range and mass |
Fast Timer - Disk 2 |
P.E.T. Device |
|
| Relationship between force on a catapult and distance travelled. |
|
Force Sensor or Spring Balance |
|
Simple Harmonic Motion
a) comparison of force constant for different springs
b) examine damping in air
c) examine damping in liquids |
ALBA Ranger Application on Disk 5 |
ALBA Ranger |
|
Note 1: Users wish to use the G-tune package please contact djb microtech directly to receive the latest version.
