Velocity and Spring Balances Experiment
CBSE Class IX Term I Summative assessment I Sample paper 3
SECTION A 1. Breathing on a mirror turns mirror foggy, what phenomenon is responsible for this? [1] 2. What is the major function of cell wall in plant cell? [1]
3. When a carpet is beaten with a stick, dirt comes out of it. Why? [1] 4. (a) Name the two factors on which the buoyant force depends. [2] (b) State the relationship between the buoyant force on an object and weight of the liquid displaced by it. 5. State any two reasons for plant cells to have large central vacuole. [2] 6. List any four salient features of meristematic tissue. [2]
7. What is a super saturated solution?
[2]
8.Give reason for the following:(a) A wet handkerchief is placed on the forehead of a person suffering from high fever. (b) We often sprinkle water on the road in summer. [3]
9. (a) Write four differences between true solution and colloidal solution. (b) What is observed when electric current is passed through a colloidal solution? [3]
10. Draw diagrams to show the difference between the structures of the three types of muscles fibres. [3] (a) List any four characteristics of parenchyma tissue. (b) What is aerenchyma? [3] Define manures. What are its three different kinds? State two limitations of manures. Write any one function of the following: [3] (a) Lysosome (b) Golgi apparatus (c) Endoplasmic Reticulum (a) What is mixed cropping? (b) Write any two advantages of mixed cropping.
11.
12.
13.
14.
[3]
15. The velocity time graph of a ball of mass 20 g moving along a straight line on a level ground is given below. How much force does the ground exert on the ball to bring it to rest? [3]
16.
(a) A car accelerates uniformly from 18 kmh-1 to 36 kmh-1 in 5s. Calculate: (i) acceleration (ii) distance covered by the car in that time. [3] (b) The length of minute hand of a clock is 14 cm. calculate the speed with which the tip of the minute hand moves. [2] [1]
17. (a) Define the term
SECTION A 1. Breathing on a mirror turns mirror foggy, what phenomenon is responsible for this? [1] 2. What is the major function of cell wall in plant cell? [1]
3. When a carpet is beaten with a stick, dirt comes out of it. Why? [1] 4. (a) Name the two factors on which the buoyant force depends. [2] (b) State the relationship between the buoyant force on an object and weight of the liquid displaced by it. 5. State any two reasons for plant cells to have large central vacuole. [2] 6. List any four salient features of meristematic tissue. [2]
7. What is a super saturated solution?
[2]
8.Give reason for the following:(a) A wet handkerchief is placed on the forehead of a person suffering from high fever. (b) We often sprinkle water on the road in summer. [3]
9. (a) Write four differences between true solution and colloidal solution. (b) What is observed when electric current is passed through a colloidal solution? [3]
10. Draw diagrams to show the difference between the structures of the three types of muscles fibres. [3] (a) List any four characteristics of parenchyma tissue. (b) What is aerenchyma? [3] Define manures. What are its three different kinds? State two limitations of manures. Write any one function of the following: [3] (a) Lysosome (b) Golgi apparatus (c) Endoplasmic Reticulum (a) What is mixed cropping? (b) Write any two advantages of mixed cropping.
11.
12.
13.
14.
[3]
15. The velocity time graph of a ball of mass 20 g moving along a straight line on a level ground is given below. How much force does the ground exert on the ball to bring it to rest? [3]
16.
(a) A car accelerates uniformly from 18 kmh-1 to 36 kmh-1 in 5s. Calculate: (i) acceleration (ii) distance covered by the car in that time. [3] (b) The length of minute hand of a clock is 14 cm. calculate the speed with which the tip of the minute hand moves. [2] [1]
17. (a) Define the term