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Conservation of Energy and Momentum MCQs

Prepare for Conservation of Energy and Momentum MCQs with verified questions, past-paper solutions, and conceptual explanations for CSS, PMS, FPSC, PPSC, and NTS examinations.

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Topic Notes: Conservation of Energy and Momentum

These notes summarize the key preparation context before you attempt the MCQs. Review the topic focus, then practice the questions below with answers and explanations.

Quick Overview

Master Conservation of Energy and Momentum MCQs for Competitive Exams with our comprehensive, verified question bank. Designed for students and competitive exam aspirants across Pakistan, this study resource provides topic-wise practice questions for CSS, PMS, FPSC, PPSC, SPSC, KPPSC, BPSC, NTS, and university entry tests.

Exam Focus
Aligned with FPSC, PPSC, and CSS syllabus criteria for Conservation of Energy and Momentum.
Past Papers
Includes frequently repeated questions from past examinations.
Solved & Verified
Each question features verified answers and conceptual explanations.

Preparation Guide & Key Focus Areas for Conservation of Energy and Momentum MCQs

When preparing for Conservation of Energy and Momentum MCQs (Physics), focus on core definitions, historical timelines, relevant provisions, and commonly tested factual points. Review each question below, test your knowledge against the given options, and inspect the detailed explanation to solidify your understanding.

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31
The energy supplied to a hospital by the electricity board during an average December week day was 40 GWh. If this power could be attained by the annihilation of matter, how much mass would have to be consumed?
32
The reading of a manometer fitted to a closed tap is 3.5 × 10^5 N/m2. If the valve is opened the reading of the manometer falls to 3 × 10^5 N/m2. The velocity of water is
33
Two loads with the total mass (m1 + m2) = 35 kg are attached to a rope passing through a locked pulley system. When the lock is removed, the loads start to move, having moved through 1.2 m they acquire a velocity of 4 m/s (g = 10 m/s²). The ratio of masses of loads is
34
Mechanical energy can be converted into:
35
A bullet has mass of 20 gm and is moving with a speed of 1000 cms^-1. It can penetrate 10 cm of a given target before coming to rest. If the same target were only 6 cm thick, then the speed of the bullet when it comes out of it is
36
An equation in fluid dynamics relates pressure, fluid speed and height. This equation is called:
37
In Bernoulli's equation the term 1/2 ρv^2 is called:
38
The internal diameter of a hose is 2 mm. Its radius will be:
39
Fluid means:
40
The work done by compound pendulum in one complete oscillation is: