GravitationPractice Questions & MCQs
Practice Gravitation questions for Class 9 Science - important MCQs and practice questions with answers and step-by-step solutions. Solve the sample Gravitation questions below, then get the full set free on the RankByte app.
Topics covered
Practice Gravitation by topic
Focused MCQ quizzes for each topic.
GravitationQuiz - Solve & Score
A few sample questions with instant answers and solutions - the full set is in the app.
Q1. During a school laboratory session a metallurgist weighs a block of aluminium and finds its density to be 2.7 g/cm^3, while the jar of water on the same bench reads 1 g/cm^3; what relative density does the aluminium have?
- A.2.7 g/cm^3
- B.3.7
- C.2.7
- D.0.3704
Answer: C. 2.7
Relative density = density of substance / density of water = 2.7 g/cm^3 / 1 g/cm^3 = 2.7. It is a ratio of two densities, so it has no units.
Q2. At an antique fair a chemistry student inspects an ingot cast from iron and measures its density as 7.8 g/cm^3, comparing it against a beaker of water at 1 g/cm^3; what is the relative density of the iron?
- A.7.8
- B.7.8 g/cm^3
- C.0.1282
- D.8.8
Answer: A. 7.8
Relative density = density of substance / density of water = 7.8 g/cm^3 / 1 g/cm^3 = 7.8. It is a ratio of two densities, so it has no units.
Q3. Inside a workshop a jeweller clamps a rod of copper and records a density of 8.9 g/cm^3, then notes the tap water nearby at 1 g/cm^3; what value of relative density follows for the copper?
- A.9.9
- B.0.1124
- C.8.9
- D.8.9 g/cm^3
Answer: C. 8.9
Relative density = density of substance / density of water = 8.9 g/cm^3 / 1 g/cm^3 = 8.9. It is a ratio of two densities, so it has no units.
Practice the full Gravitation set on RankByte
Step-by-step solutions, real mock tests, live National & School ranks and daily streaks - free to start.
Get early accessGravitation - Frequently asked questions
Where can I find Gravitation practice questions for Class 9 Science?
RankByte has chapter-wise and topic-wise Gravitation practice questions and MCQs for Class 9 Science, each with the correct answer and a step-by-step solution - free to start.
Are these Gravitation questions important for the exam?
Yes. These Gravitation important questions follow the Science exam pattern (CBSE Boards, plus JEE and NEET foundation), so they help with both school and competitive prep.
Do the Gravitation questions come with answers and solutions?
Every Gravitation question on RankByte comes with the correct answer and a full step-by-step solution, so you learn from each one instead of just guessing.
More Class 9 Science chapters
Atomic Foundations of Matter
Interactive quiz · step solutions
Practice →Atoms and Molecules
Interactive quiz · step solutions
Practice →Describing Motion Around Us
Interactive quiz · step solutions
Practice →Diversity in Living Organisms
Interactive quiz · step solutions
Practice →Earth as a System
Interactive quiz · step solutions
Practice →Force and Laws of Motion
Interactive quiz · step solutions
Practice →