Home/ Questions/Q 462015
Next
In Process
Mohan Sharma
  • 1
Poll
Asked: 2025-02-08T06:04:54+00:00 In:

If the speed of an object is doubled then its

  • 1

Poll Results

0%(a) kinetic energy is doubled.
100%(b) kinetic energy is raised to 4 times of its initial value. ( 1 voter )
0%(c) potential energy is doubled.
0%(d) potential energy becomes 4 times of its initial value.
Based On 1 Vote

Participate in Poll, Choose Your Answer.

The correct answer is (b) kinetic energy is raised to 4 times of its initial value.
Kinetic energy is given by the formula KE = (1/2) m v². If the speed (v) is doubled, then KE = (1/2) m (2v)² = 4 × initial KE. Thus, kinetic energy increases four times.
Class 9th Science NCERT MCQ Questions
NCERT Books MCQ Questions Session 2024-2025.

class 9thmcqscience
Share

    1 Answer

    1. (b) Kinetic energy of an object E = 1/2 mv². If speed of the object is doubled then obviously its kinetic energy is raised to four times of its initial value.

      https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-10/

      • 5
    Leave an answer

    Leave an answer

    Browse