Question 1
A ball is thrown vertically upwards with a velocity of 20 m/s from the top of a tower of height 25 m. Taking g = 10 m/s², what is the total time taken by the ball to reach the ground?
Correct Answer:
5 seconds
Question 2
A block of mass 5 kg is placed on a rough horizontal surface with a coefficient of static friction μs = 0.4 and coefficient of kinetic friction μk = 0.3. A horizontal force of 15 N is applied to the block. What is the magnitude of the frictional force acting on the block? (g = 10 m/s²)
Correct Answer:
15 N
Question 3
Two bodies of masses m₁ = 1 kg and m₂ = 4 kg possess equal kinetic energies. What is the ratio of their linear momenta (p₁ : p₂)?
Correct Answer:
1 : 2
Question 4
An object is placed at a distance of 15 cm in front of a convex lens of focal length 10 cm. What is the position and nature of the image formed?
Correct Answer:
30 cm behind the lens, real and inverted
Question 5
An electric bulb rated 220 V, 100 W is operated at 110 V. What is the power consumed by the bulb at this lower voltage?
Correct Answer:
25 W
Question 1
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About this Exam

Prepare with the NSEJS Practice Questions - National Standard Examination in Junior Science Exam practice quiz. This question bank includes 100 questions covering water, mass, force, velocity, and distance. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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NSEJS Practice Questions - National Standard Examination in Junior Science Exam

This practice set contains 100 questions from the matching question bank and focuses on water, mass, force, velocity, and distance. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

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