ijmb model questions vol1 2022 physics | Practical

Prepare for your exams with ijmb model questions vol1 questions? Reviewing past/model questions is one of the most effective ways to guarantee a high score. This practice hub features authentic 2022 physics (Practical) questions designed to simulate the real exam environment.

Practice these randomly selected questions to test your readiness.

Question 1 View Details
A student is required to determine the acceleration due to gravity (g) using a simple pendulum.
Question Parts
(a)
State a step‑by‑step procedure for measuring the length of the pendulum and the period of oscillation. Mention at least two precautions that should be observed.
(b)
The length measured is L = 0.540 m (three significant figures). Five successive timings for 20 complete oscillations are: 28.62 s, 28.55 s, 28.68 s, 28.60 s, 28.57 s. Calculate (i) the mean period of one oscillation and (ii) the standard deviation of the period.
(c)
Using the mean period obtained, calculate the experimental value of g. Show the rearranged formula and give g to two decimal places.
(d)
Determine the percentage error in the experimental value of g, taking the accepted value as 9.81 m s⁻². Comment on two possible sources of error based on the procedure.
Detailed Essay Solution & Marking Scheme Available

Get the step-by-step mathematical proofs, key points required by examiners, and a comprehensive breakdown from our AI Tutor.

Reveal Answer
Question 2 View Details
A student uses a force table to determine the resultant of forces acting on a ring.
Question Parts
(a)
Explain how to set up the force table so that two forces of known magnitude can be applied at specified angles, and describe how the direction of the resultant is obtained using the ring.
Detailed Essay Solution & Marking Scheme Available

Get the step-by-step mathematical proofs, key points required by examiners, and a comprehensive breakdown from our AI Tutor.

Reveal Answer
Question 3 View Details
A simple pendulum is constructed using a thin cotton thread attached to a small spherical bob. The length of the pendulum is varied and the time for 10 complete oscillations is recorded for each length as shown in the table below. | Length (cm) | Time for 10 oscillations (s) | |-------------|------------------------------| | 40 | 12.70 | | 50 | 14.10 | | 60 | 15.50 | | 70 | 16.80 | | 80 | 18.20 | Using the data, the student is required to determine the acceleration due to gravity (g).
Question Parts
(a)
Calculate the period (T) for each length and then compute T². Plot T² (vertical axis) against length L (horizontal axis) and determine the gradient of the best‑fit straight line.
(b)
Using the relation T² = (4π²/g) L, calculate g from the gradient obtained in part (a).
(c)
If the accepted value of g is 9.81 m s⁻², calculate the percentage error in the experimental value.
Detailed Essay Solution & Marking Scheme Available

Get the step-by-step mathematical proofs, key points required by examiners, and a comprehensive breakdown from our AI Tutor.

Reveal Answer
Question 4 View Details
A light spring of unknown constant is suspended vertically. Masses are added successively and the extension of the spring is recorded as shown. | Mass (kg) | Extension (cm) | |-----------|----------------| | 0.10 | 1.2 | | 0.20 | 2.4 | | 0.30 | 3.5 | | 0.40 | 4.8 | | 0.50 | 5.9 | The same spring is then used as a simple pendulum (with the mass of 0.30 kg attached) and the period of small oscillations is measured to be 0.68 s.
Question Parts
(a)
Using the static method, plot the applied force (F = mg) against extension (x) and determine the spring constant k from the slope.
(b)
Using the dynamic method, calculate the spring constant k from the measured period (T) of the mass‑spring system, where T = 2π√(m/k). Compare with the static value and comment on any discrepancy.
Detailed Essay Solution & Marking Scheme Available

Get the step-by-step mathematical proofs, key points required by examiners, and a comprehensive breakdown from our AI Tutor.

Reveal Answer

Master the Exam!

You've seen a preview, but there are thousands more questions plus AI tutor to break down complex solutions.

Unlock Full Access Available for Android & Windows
Help others prepare! Share this practice hub:
Chat with Support