CBSE Class 9 Science Question Paper Set L

CBSE Class 9 Science Question Paper SA1 2012. Students can download the last year question papers using the link below. Free download of examination question papers with solutions. Last 10 year question papers should be practised to get better marks in examinations.

SCIENCE

1. Name the phenomenon in which particles of two or more substances intermix on their own.

2. Name the physical quantity which corresponds to rate of change of momentum.

3. Name the plastic which stores starch, oils and protein granules.

4. Describe an activity to explain the process of separation of salt and ammonium chloride.

5. The gravitational force between two objects is F. How will this force change when:

i) The distance between them is reduced to half.

ii)The mass of one of the objects becomes four times.

6. How do substances like CO2 and water move in and out of the cell?

7. List any two differences between structure and location of striated and unstriated muscles.

8. Give reasons:

a) Steam produces more severe burns than boiling water.

b) We are able to sip hot tea faster than from a saucer rather than a cup.

c) Water kept in an earthen pot becomes cool during summer.

9. A) Distinguish between the properties of a solution and a suspension on the basis of filtration and stability criteria.

B) What is Tyndall effect?

10. Rajeev went from Delhi to Chandigarh on his motorbike. The odometer of the bike read 4200km at the start of trip and 4460km at the end of his trip. If Rajeev took 4h 20min to complete his trip, find the average speed in kmh-1 as well as in ms-1.

11. a) State Newton’s third law of motion.

b) Why does a boat move backward, when a man jumps out of a boat to the bank of a river?

12. Explain why the value of ‘g’ changes from poles to equator on the surface of the earth. State how would it’s value change on moving.

a) towards the centre of the earth.

b) away from the earth.

13. a) State the Newton’s second law of motion.

b) Express Newton’s second law mathematically explaining the symbols used.

c) Define SI unit of force from the expression.

Please click the link below to download pdf file of CBSE Class 9 Science Question Paper SA1 2012.