This quiz contains practice questions for Measurement Of Physical Quantities (O Level). There are explanations for some of the questions after you submit the quiz. If you could not figure out why a particular option is the answer, feel free to drop a comment below or ask a question in ‘O’ & ‘A’ Level Discussion section of the forum. If you wish to contribute questions to this quiz, please contact us.
The quiz comprises of 10 questions, which are randomly selected from a large pool of questions. After completion, you can refresh the page and try the quiz again for a new set of 10 questions.
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I have answered the quiz and can’t see the result. What should I do? Is it normal?
highly useful to get profound understanding in physics.Thanks. Please continue your yeomen service.
How to calculate the reading of vernier calliper in the last question?
Very helpful. Can anyone please confirm if vernier calipers are out of the Cambridge GCE syllabus (2020)?
yup they are at least in my school
I am dont know how to measure the verniar caliprs and micro meter screw gauge can u plzz explain me
For measuring on vernier calipers, first read the main scale reading at the edge of the thimble, then read the thimble scale reading opposite the datum line, thimble scale has 50 divisions each division is equal to 0.01 mm, so multiply the thimble scale reading with 0.01 mm. Then add the both readings.
Sorry this method is for micro meter.
Its very helpful.
Plz tell me any website for chemistry ,biology preparation
this website is very helpful! thank you for your help 🙂
Hi sir it’s Laila
It’s nice.
Q#1 please
great
The answer is 0.01 or 0.1 but mostly I agree with 0.01
What if we say that EMF: This is the process on which the cell manage to convert chemical and mechanical energy into electrical energy.
EMF is the work done to drive a unit charge acorss the whole circuit
what you described is potential difference
Ya l agree with u though l know less
Great! Great!
What is electromotive force
A difference in potential that tends to give rise to an electric current.
🙂
Potential difference is usually across a load while EMF is provided by the battery.
EMF: It is the electrical energy provided to a unit of charge in order to drive it round a complete circuit.
Hi there. What’s the answer to Q#7. Thank you.
3.5mm the 4th option
The answer is 0.01 or 0.1 but mostly I agree with 0.01
Can’t understand question 9 and 8
Please reply soon as possible
The questions are randomized. Which questions did you get for 8 and 9?
What is the zero error as shown below? Ans: -0.7 mm
Which of the following is a scalar quantity?
1:the heat needed to boil some water
2:the effort needed to hammer a nail into wood
3:the braking force needed to stop a car
4:the thrust needed to lift a rocket off the ground
Correct answer: 1
If a vernier caliper has a minus/negative error, you have to count from the end of the vernier scale. In this case, counting from the end of the vernier scale, the points on the vernier scale and main scale line up at 0.7 mm (0.3 mm if counted from the front). Hence, the vernier caliper has a zero error of -0.7mm. Hope this helps. 🙂
Thanks Jesvi…that did help 🙂
Question 9. See the diagram for a micrometer screw Gaugae or use a real one in order to close on an object use a thimble but in order to get an accurate answere by avoiding squeezing of the object a ratchet is used.
for question 8.
the question asked for quantities consisting of vector.
vector has 6 quantities,which are: force, acceleration, momentum, velocity, weight, displacement
i usually memorize them by “famvwd” which is^^^^^^^^^^^^^^^^^^^^^^^^^^^
Hope it helps.=)
i got an A* in physics thanks for helping
The first and last questions are the same but they have different answers?
What are the questions?
Question 3, I believe there’s an error. The correct answer given is Vernier Caliper, however theres a value of 1.37mm. A vernier caliper can only measure up to 1 decimal point, whereas the micrometer screw gauge can measure up to 2 decimal points..
Thank you for the report. The error has been fixed.
Really helpful!