Fichas
IGCSE Physics Paper 6
Fichas del conjunto (8)
- 1Center of mass experiment (w/ lamina): How to minimize inaccuracy?When marking the lines you view the string directly in front of the card.
- 2Why angle I is NOT equal to angle R in ray experiment?-Thickness of pins.
-Thickness of mirror.
-Protractor is not precise.
-To improve accuracy put pins further apart to avoid parallax error. - 3In exp w/ cooling of water this things must be kept the same.-Initial temp.
-Thickness of test tubes (more heat loss when thinner)
-Vol of water
-Thickness of cotton wool.
-Depth of thermometer in water.
-Avoid droughts
-Length in mm. - 4Precautions for circuit readings of I and V so that they are accurate.For I specifically
-Limit current so that temp. doesn't increase.
-Use a tapping meter.
For I and V
-Switch off between readings. - 5Fair test for pendulum experiments.-Length of pendulum.
-Shape of bob.
-No of swings.
-Amplitude - 6If comparing the extensions of springs of different materials, certain things have to be the same.-Cross-section of the springs.
-Length of springs
-Room temperature
If a statement is directly proportional, the justification would always be, straight line (goes through origin) - 7How to reduce heating effect of current.-Add a variable resistor.
-Reduce current.
-Reduce voltage or power.
-Switch off between readings. - 8Precautions for focal length exp.-Do it in a darkened room.
-Clamp ruler to bench.
-Avoid parallax error when reading length.
-Make sure that the object/ lens/ screen are all perpendicular to bench.
-Do repeats.
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- Science Fichas sobre IGCSE Physics Paper 6, creado por Kusasira Paul el 10/05/2018.
- Creado por
- Kusasira Paul
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