Unit Test ii
Class IX
Timing: 75min
Subject: Science
MM: 25
General Instructions:
(a) All questions are compulsory.
(b) All Students will dearly write their name, class, section, admission number, and date on plain paper at the top.
(c) Students have to write only answers with proper question numbers in the same sequence as given in the question paper, on plain paper.
PHYSICS
1. A passenger in a moving train tosses a coin that falls behind him. It means that the motion of the train is:
- a) accelerated
- b) uniform
- c) retarded
- d) along a circular track
- a) 32 N
- b) 0 N
- c) 2 N
- d) 8 N
3. Rocket works on the principle of conservation of
- a) mass
- b) energy
- c) momentum
- d) velocity
4,. Out of mass, velocity, momentum, and force, which one is not a vector?
- a) mass
- b) velocity
- c) momentum
- d) force
5. There are three solids made up of aluminum, steel, and wood of the same shape and the same volume. Which would have the highest inertia and why?
6. Explain Newton's second law of motion. Derive its mathematical formulation.
CHEMISTRY
7. Which of the following is homogeneous in nature?
i) ice ii) wood iii) soil iv) air
- a) i and iii
- b) ii and iv
- c) i and iv
- d) iii and iv
8. Which component of the mixture (Fe + S) reacts with dilute HCI and gives hydrogen gas? J.
- a) Sulphur
- b) Iron
- c) Both
- d) none
9 Which of the following is a compound?
- a) Hydrogen sulfide
- b) Bronze
- c) Graphite
- d) Stainless steel
10. Alloys cannot be separated by physical means, though it is considered a mixture, Why?
11. How are sol, solution, and suspension different from each other? 3
BIOLOGY
12. Some parts of the plant are flexible due to the presence of
- a) parenchyma
- b) collenchymas
- c) meristematic
- d) Sclerenchyma
13. Cork is impervious to water because it has the deposition of-
- a) Lignin
- b) Pectin
- c) Suberin
- d) All options
14. Ligament connects
- a) Bone to muscle
- b) Bone to Bone
- c) Organ to Bone
- d) Blood vessel to adipose tissue
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