Fluid Mechanics — JAMB Physics Past Questions
Fluid Mechanics is one topic inside the JAMB Physics syllabus, and drilling it on its own is usually faster than revising the whole subject again. Below: which JAMB years have examined it, then real Fluid Mechanics questions with worked answers.
When JAMB examined Fluid Mechanics
Fluid Mechanics questions appear in our bank for the JAMB years below. This is taken from the questions themselves, not from a syllabus outline — so if a year is listed, this topic was genuinely examined that year.
A topic that keeps reappearing is a topic JAMB keeps testing. Newer years matter most, because question style drifts.
Try Fluid Mechanics questions
Real Physics questions tagged to Fluid Mechanics. The first is worked through completely so you can see how our explanations read — the rest you can attempt now and check inside the app.
A wheel and axis have radii 80 cm and 20 cm respectively. If the efficiency of the machine is 80%, calculate the effort required to raise a load of 100 N.
- A 25 N
- B 31.25 N
- C 40 N
- D 50 N
Answer: B
Mechanical advantage = (efficiency × velocity ratio) = 0.8 × (radius of wheel / radius of axle) = 0.8 × (80/20) = 3.2. Effort = Load / MA = 100 / 3.2 = 31.25 N.
A pure indium object of volume 50 cm³ is immersed in liquid of density 10³ kg/m³ (g = 10 m/s²).
- A 0.8 N
- B 0.5 N
- C 0.3 N
- D 1.0 N
Answer and full explanation are inside the app.
Check the answerA test tube of radius 1.0 cm is loaded to 8.8 g. If it is placed upright in water, find the depth to which it would sink. [g = 10 m/s², Density of water = 1000 g/m³]
- A 2.8 cm
- B 5.2 cm
- C 25.5 cm
- D 28.0 cm
Answer and full explanation are inside the app.
Check the answerOther Physics topics
Drill Fluid Mechanics until it stops costing you marks
Filter Physics practice to Fluid Mechanics alone, work through it with worked explanations, and let the analytics show you when it has actually stuck. Free to start.
Fluid Mechanics in JAMB Physics: common questions
Are Fluid Mechanics questions free?
Yes. Create a free account and every Physics question tagged to Fluid Mechanics is available with a worked explanation. Past questions are not paywalled.
Is Fluid Mechanics really examined?
Yes. Fluid Mechanics appears in our bank across 8 JAMB years, taken from the questions themselves rather than a syllabus outline.
Can I practise Fluid Mechanics on its own?
Yes. JambUp lets you filter Physics questions to a single topic, so you can drill Fluid Mechanics until it stops costing you marks, then move on to the next weak area.