Class 9 Science Case Study MCQs
CBSE Class 9 Science ā Case Study MCQs
Class: 9 | Subject: Science | Section: Exam Oriented
Topic: Case Study Based MCQs ā CBSE Board Examination Pattern
Topic: Case Study Based MCQs ā CBSE Board Examination Pattern
Instructions: These Case Study MCQs are strictly based on the NCERT syllabus and CBSE examination pattern. Each passage evaluates analytical and conceptual understanding.
Riya observed that when sugar was added to water, it dissolved completely and the level of water did not change significantly.
1. The solution formed is:
Answer: B
Sugar dissolves uniformly forming a homogeneous solution where particles are evenly distributed.
Sugar dissolves uniformly forming a homogeneous solution where particles are evenly distributed.
2. The process involved is:
Answer: C
Dissolution occurs when solute particles mix completely with solvent particles.
Dissolution occurs when solute particles mix completely with solvent particles.
A car starts from rest and moves with uniform acceleration on a straight road.
3. Initial velocity is:
Answer: C
Starts from rest ā velocity = 0.
Starts from rest ā velocity = 0.
4. Motion is:
Answer: B
Uniform acceleration means velocity changes equally per second.
Uniform acceleration means velocity changes equally per second.
Rahul observed onion peel cells under a microscope.
5. Cell wall is made of:
Answer: B
Plant cell walls are composed of cellulose.
Plant cell walls are composed of cellulose.
6. Onion cells are:
Answer: C
During evaporation, water kept in an earthen pot becomes cool.
7. Cooling occurs due to:
Answer: B
8. Fast evaporation occurs on:
Answer: B
A sound wave travels through air and reaches a listener.
9. Sound travels as:
Answer: A
10. It cannot travel in:
Answer: C
A student heated ice and observed change of state.
11. Ice to water is:
Answer: B
12. Heat absorbed is:
Answer: A
A ball thrown upward slows down and returns.
13. Acceleration direction:
Answer: B
14. At highest point velocity:
Answer: B
Green plants prepare food using sunlight.
15. Process is:
Answer: B
16. Pigment involved:
Answer: B
Air pollution increased in a city.
17. Major pollutant:
Answer: C
18. Layer protecting UV:
Answer: B
Two objects of different masses fall freely.
19. They reach ground:
Answer: B
Acceleration due to gravity is same.
Acceleration due to gravity is same.
20. Acceleration is:
Answer: B