What is the main source of error when measuring the length of an object using a ruler?
a) Parallax error
b) Zero error
c) Instrumental error
d) Human error
Which type of error occurs when a measuring instrument is not calibrated correctly?
a) Random error
b) Systematic error
c) Personal error
d) Instrumental error
Which of the following is not a type of error in physics measurements?
a) Random error
b) Instrumental error
c) Conceptual error
d) Systematic error
Which error is caused due to limitations of the measuring device itself?
a) Human error
b) Random error
c) Instrumental error
d) Zero error
In what way can human error be minimized during experiments?
a) Using more sensitive instruments
b) Calibrating the instruments correctly
c) Avoiding reading errors and parallax
d) Increasing the sample size
What is the error called when the measuring instrument does not show zero at the starting point?
a) Parallax error
b) Zero error
c) Random error
d) Systematic error
Which of the following can be an example of random error?
a) A faulty thermometer
b) Variations in environmental conditions
c) Misreading a scale
d) Incorrect calibration of a device
What is the primary cause of a systematic error in an experiment?
a) Fluctuations in experimental conditions
b) Misinterpretation of results
c) Faulty calibration of instruments
d) Random variations in data
Which error occurs when a measuring instrument is improperly used by the experimenter?
a) Human error
b) Systematic error
c) Instrumental error
d) Random error
What should be done to reduce the effect of random error in repeated measurements?
a) Perform more measurements and take the average
b) Calibrate the instrument
c) Ensure the instrument is zeroed correctly
d) Increase the sample size
What type of error is usually caused by a poorly maintained instrument?
a) Random error
b) Systematic error
c) Human error
d) Parallax error
Which of the following is a characteristic of random errors?
a) They can be corrected by adjusting the instrument
b) They affect all measurements in a consistent way
c) They follow a predictable pattern
d) They cause deviations in measurements in both directions
What is the primary cause of zero error in a balance scale?
a) Overuse of the scale
b) Faulty design of the scale
c) Residual weight on the scale pan
d) Misreading of the scale
How can systematic errors be identified?
a) By observing random fluctuations in measurements
b) By comparing measurements against a known standard
c) By using more expensive equipment
d) By measuring over a longer period of time
Which of the following is not an example of a random error?
a) Variations in temperature
b) Inaccurate clock
c) Misreading the scale
d) Noise in electronic devices
How can parallax errors be minimized when reading a scale?
a) Use a more accurate scale
b) View the scale from a direct line of sight
c) Take measurements at different times
d) Calibrate the instrument correctly
What is an example of an instrumental error?
a) A thermometer reading too high due to faulty calibration
b) Changes in environmental temperature
c) Human mistakes during measurement
d) Inconsistencies in the experimental setup
What type of error arises when environmental factors, such as temperature or humidity, affect the results?
a) Random error
b) Systematic error
c) Parallax error
d) Instrumental error
Which method is best for reducing the impact of human error in experiments?
a) Using electronic instruments
b) Taking multiple measurements and averaging
c) Using more sensitive instruments
d) Increasing the sample size
Which of the following does not contribute to a zero error?
a) Misalignment of the instrument
b) Incorrect calibration
c) Properly set instrument to zero
d) Overuse of the instrument
What is the most effective way to detect human error during experiments?
a) Calibrating the instruments
b) Double-checking readings and methods
c) Using automated systems
d) Performing fewer experiments
Which error occurs due to fluctuations in environmental factors such as light or temperature?
a) Random error
b) Systematic error
c) Human error
d) Instrumental error
What is a common way to minimize the impact of systematic errors in repeated measurements?
a) Use a different instrument each time
b) Perform a calibration of the instrument
c) Take fewer measurements
d) Avoid using zeroing the instruments
Which of the following is an example of a human error during an experiment?
a) A scale showing incorrect readings due to improper zeroing
b) Not following the correct procedure during measurements
c) The instrument failing due to wear and tear
d) A fluctuating environment affecting measurements
How can errors in physical experiments be reduced?
a) Using higher accuracy instruments
b) Taking the average of multiple measurements
c) Calibration of instruments
d) All of the above
What error is most likely to occur when measuring the time it takes for an object to fall?
a) Human error in starting or stopping the timer
b) Instrumental error in the stopwatch
c) Random error due to wind resistance
d) Systematic error due to temperature variations
Which method helps in reducing parallax errors during measurement?
a) Calibrate the instruments
b) Use a digital measuring device
c) Read the scale from a correct angle
d) Use higher precision instruments
