Introduction to Physics - Consistency, Accuracy and Sensitivity

This exercise consist of 7 objective questions.

1.Relative deviation is a measure of ________________ of measurements.

1. Accuracy
2. Consistency
3. Sensitivity
4. Random error
5. Systematic error

2.Table above shows the results for the measurement of the diameter of a pencil. Calculate the relative deviation of these readings.

1. 0.99%
2. 0.12%
3. 12%
4. 1.21%

3.A reading is accurate if

1. its percentage of error is low.
2. its relative deviation is low.
3. it has no zero error.
4. its error is small

4.Which of the followings are true regarding the accuracy of a measurement.

1. The accuracy of a measurement is how close the measurement made is to the actual value of the quantity of physics.
2. The lower the error, the higher the accuracy of a measurements
3. A good measurements can be 100% accurate.
4. Accuracy of a measurement can be evaluated by calculating the relative error of the measurement.

5.The accuracy of a measurement can be increased by

1. conducting the experiment with care.
2. ignoring the zero error.
3. repeating the experiment by using different instruments.
4. repeating the experiment at different time and places.

6.Figure above shows the result of a shooting competition. Which player is consistent but less accurate?

1. Player A
2. Player B
3. Player C
4. Player D

7.Table above shows the measurements of the thickness of form 4 Physics textbook made by 4 students Joslina, Valentina, Nee Na and Mina. Which set of the readings is consistent but less accurate? (Assume that the actual reading of the thickness is      1.92 cm.)

1. Joslina
2. Nee Na
3. Valentina
4. Mina