by Sunday | Nov 1 | Physics JAMB
A. Impulse B. Momentum C. Inertia D. Friction Correct Answer: Option C – Inertia Explanation Inertia, property of a body by virtue of which it opposes any agency that attempts to put it in motion or, if it is moving, to change the magnitude or direction of its...
by Sunday | Nov 1 | Physics JAMB
A. 87N B. 73.5N C. 133.3N D. 533.2N Correct Answer: Option C – 133.3N Explanation V. R = 1/Sinθ m = 20kg V.R = 1/Sin30 = 2 Efficiency = 75% Load = mg = 20 x 10 = 200N Efficiency = M.A/V.R×100 75/100 = M.A/2 M .A = 75×2/100 M. A = 1.5 Since M. A. = Load/Force...
by Sunday | Nov 1 | Physics JAMB
A. 0.8Ns B. 1.2Ns C. 12.0Ns D. 80.0Ns Correct Answer: Option A = 0.8Ns Explanation Momentum = Mass x Velocity Change in Momentum = Mass x (change in velocity) Change in Momentum = Mass x (v – u) Mass = 100g = 0.1kg U = 2ms−¹ V = 10ms−¹ Change in momentum = m (v...
by Sunday | Nov 1 | Physics JAMB
A. Adhesive B. Cohesive C. Magnetic D. Repulsive Correct Answer: Option A – Adhesive Explanation The term Adhesive forces refers to the attractive forces between unlike substance
by Sunday | Nov 1 | Physics JAMB
A. 0kgm B. 2kgm/s C. 4kgm/s D. 8kgm/s Correct Answer: Option D – 8kgm/s Explanation Initial momentum = (0.8) × (5) = 4.0kgms−1 Final momentum = (0.8) × (– 5) = – 4.0kgms−1 Impulse on ball = Change in momentum = 4.0 – (– 4.0) =...
by Sunday | Nov 1 | Physics JAMB
A. An electron B. An ion C. A neutron D. A proton Correct Answer: Option B – An ion Explanation If an atom gains or loses an electron, it becomes an ion. An atom that gains a negative electron, it becomes a negative ion. If it loses an electron it becomes a...
by Sunday | Nov 1 | Physics JAMB
A. 36.0 B. 7.2 C. 5.0 D. 3.6 Correct Answer: Option D – 3.6 Explanation Mechanical Advantage = V.R × Efficiency = 5 × 0.72 = 3.6
by Sunday | Nov 1 | Physics JAMB
A. Micrometres screw gauge B. Pair of dividers C. Metre rule D. Pair of vernier calliper Correct Answer: Option D – Pair of vernier calliper Explanation A vernier scale is a visual aid to take an accurate measurement reading between two graduation markings on a...
by Sunday | Nov 1 | Physics JAMB
A. 4μf B. 3μf C. 2μf D. 1μf Correct Answer: Option D – 1μf
by Sunday | Nov 1 | Physics JAMB
A. 100N B. 90N C. 80N D. 120N Correct Answer: Option A – 100N
Land Law and the Consequences of Unauthorized Land Transfers in Nigeria
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