Test: Conservation Of Linear Momentum - Class 9 MCQ
10 Questions MCQ Test Online MCQ Tests for Class 9 - Test: Conservation Of Linear Momentum
Test: Conservation Of Linear Momentum for Class 9 2024 is part of Online MCQ Tests for Class 9 preparation. The Test: Conservation Of Linear Momentum questions and answers have been
prepared according to the Class 9 exam syllabus.The Test: Conservation Of Linear Momentum MCQs are made for Class 9 2024 Exam. Find important
definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Conservation Of Linear Momentum below.
Solutions of Test: Conservation Of Linear Momentum questions in English are available as part of our Online MCQ Tests for Class 9 for Class 9 & Test: Conservation Of Linear Momentum solutions in
Hindi for Online MCQ Tests for Class 9 course. Download more important topics, notes, lectures and mock
test series for Class 9 Exam by signing up for free. Attempt Test: Conservation Of Linear Momentum | 10 questions in 10 minutes | Mock test for Class 9 preparation | Free important questions MCQ to study Online MCQ Tests for Class 9 for Class 9 Exam | Download free PDF with solutions
Detailed Solution for Test: Conservation Of Linear Momentum - Question 1
Rocket works on the conservation of momentum. In a rocket, the fuel burns and produces gas at high temperature. These gases are ejected out of the rocket from a nozzle at the back side of the rocket. The ejecting gas exerts a forward force on the rocket which help in accelerating. Through the mass of gases escaping per second is very small and their momentum is very large due to their tremendous velocity of escape. An equal and opposite momentum is imparted to the rocket which despite its large mass builds up a high velocity.
Test: Conservation Of Linear Momentum - Question 2
A gun of mass 5kg fires 50gm bullet with a velocity of 200m/s. Find the recoils velocity of the gun.
Detailed Solution for Test: Conservation Of Linear Momentum - Question 3
M of bullet = 50g= 50/1000 = 0.05kg
u= 200m/s , v=0m/s
m of gun = 5kg
u= 0m/s , v= ?
p of bullet before firing = 0.05x200 = 10kgm/s
p of gun before firing = 5*0 = 0kgm/s
Total p before firing = 10 + 0 = 10kgm/s
p of bullet after firing = 0.05x0 = 0kgm/s
let recoil velocity of gun = v m/s
p of gun after firing = 5v kgm/s
total p after firing = 5v + 0 = 5v kgm/s
According to law of conservation of momentum(p)
total p before firing = total p after firing
10 = 5v
10/5 = v
2 = v
∴ recoi v of gun = - 2 m/s
negative sign indicates the opp. direction of motion
Test: Conservation Of Linear Momentum - Question 4
The law of conservation of momentum states that the sum of momenta of two objects before collision is equal to the sum of momenta after the collision provided that ______
Detailed Solution for Test: Conservation Of Linear Momentum - Question 5
The law of conservation of momentum states that for two objects colliding in an isolated system, the total momentum before and after the collision is equal. This is because the momentum lost by one object is equal to the momentum gained by the other.
Test: Conservation Of Linear Momentum - Question 6
A ball of mass 5 kg moving at 3 m/s collides with another ball of mass 3 kg moving at 5 m/s in the same direction. If the balls move together after the collision in the same direction, find their common velocity.
Detailed Solution for Test: Conservation Of Linear Momentum - Question 7
Let 'v' be the common velocity. . Then Using law of conservation of momentum... we have: m1u1+m2u2=(m1+m2)v... =》(5×3)+(3×5)=(5+3)v.. =》30=8v.. =》v=30/8=3.75 m/s..
Test: Conservation Of Linear Momentum - Question 8
Two objects each of mass 1.5 Kg are moving in the same straight line but in opposite directions. The velocity of each object is 2.5m/s before the collision during which they stick together. What will be the velocity of the combined object after the collision?
Detailed Solution for Test: Conservation Of Linear Momentum - Question 8
Mass ofone of the objects,m1= 1.5 kg
Mass of the other object,m2= 1.5 kg
Velocity ofm1before collision,v1= 2.5 m/s
Velocity ofm2, moving in opposite direction before collision,v2= 2.5' m/s
(Negative sign arises because massm2is moving in an opposite direction)
After collision, the two objects stick together.
Total mass of the combined object =m1+m2
Velocity of the combined object =v
According to the law of conservation of momentum:
Total momentum before collision = Total momentum after collision
1.5(2.5) + 1.5 (2.5') = (1.5 + 1.5)v
3.75' + 3.75 = 3v
Hence, the velocity of the combined object after collision is 0 m/s.
Test: Conservation Of Linear Momentum - Question 9
Information about Test: Conservation Of Linear Momentum Page
In this test you can find the Exam questions for Test: Conservation Of Linear Momentum solved & explained in the simplest way possible.
Besides giving Questions and answers for Test: Conservation Of Linear Momentum, EduRev gives you an ample number of Online tests for practice
Important Questions for Conservation Of Linear Momentum
Find all the important questions for Conservation Of Linear Momentum at EduRev.Get fully prepared for Conservation Of Linear Momentum with EduRev's comprehensive question bank and test resources.
Our platform offers a diverse range of question papers covering various topics within the Conservation Of Linear Momentum syllabus.
Whether you need to review specific subjects or assess your overall readiness, EduRev has you covered.
The questions are designed to challenge you and help you gain confidence in tackling the actual exam.
Maximize your chances of success by utilizing EduRev's extensive collection of Conservation Of Linear Momentum resources.
Conservation Of Linear Momentum MCQs with Answers
Prepare for the Conservation Of Linear Momentum within the Class 9 exam with comprehensive MCQs and answers at EduRev.
Our platform offers a wide range of practice papers, question papers, and mock tests to familiarize you with the exam pattern and syllabus.
Access the best books, study materials, and notes curated by toppers to enhance your preparation.
Stay updated with the exam date and receive expert preparation tips and paper analysis.
Visit EduRev's official website today and access a wealth of videos and coaching resources to excel in your exam.
Online Tests for Conservation Of Linear Momentum Online MCQ Tests for Class 9
Practice with a wide array of question papers that follow the exam pattern and syllabus.
Our platform offers a user-friendly interface, allowing you to track your progress and identify areas for improvement.
Access detailed solutions and explanations for each test to enhance your understanding of concepts.
With EduRev's Online Tests, you can build confidence, boost your performance, and ace Conservation Of Linear Momentum with ease.
Join thousands of successful students who have benefited from our trusted online resources.