A-Level Physics Paper 3 Quiz

Why is it important to record experimental results with the same number of decimal places?

• To make the data look more professional

• To impress the examiner

• To ensure consistency and accuracy in data analysis

• To make calculations easier

What should be recorded during an experiment instead of calculated values?

• Hypothetical scenarios

• Estimated values

• Actual measurements

• Theoretical predictions

How can parallax error be minimized when taking measurements?

• By using a longer ruler

• By measuring from a distance

• By taking measurements at eye level

• By using a digital ruler

What tool can be used to ensure a meter ruler is vertical?

• A set square

• A spirit level

• A compass

• A protractor

What does precision in measurements refer to?

• The speed of taking measurements

• The consistency of repeated measurements

• The accuracy of the measuring instrument

• The closeness to the true value

How can a temperature reading be precise but not accurate?

• If the readings are taken quickly

• If the thermometer is new

• If the readings are consistent but affected by a systematic error

• If the thermometer is digital

What is the benefit of measuring over a larger distance in the speed of sound experiment?

• It improves the sound quality

• It makes the experiment faster

• It reduces the percentage uncertainty

• It increases the speed of sound

What is the relationship between frequency and time period?

• Frequency is half the time period

• Frequency is the inverse of the time period

• Frequency is the square of the time period

• Frequency is double the time period

In the wave equation V = F * λ, what does λ represent?

• Velocity

• Frequency

• Wavelength

• Amplitude

What was the calculated speed of sound in the experiment?

• 400 m/s

• 250 m/s

• 342 m/s

• 300 m/s