PAPERS PRACTICSE

IX Science Motion-1

(Carrying one mark each)

If on a round trip of radius 60 m and take half revolution. Find the distance and displacement in the total travel.
Write the name of the instrument which measures the speed in the car?
Give tow examples of uniform accelerated motion.
Write the equations of motions and meanings of used symbols.
Draw the graph when the initial speed of the body is not zero and is not zero.
Give any two examples of non uniform acceleration.
Calculate the speed of a moving body if it takes one revolution in 6 min on circular path of diameter 42 m.
Explain the non uniform velocity.
Change the speed of 60 km/h in to m/s and km/min.
What is the difference b/w speed and velocity?

(Carrying two marks each)

An ant travels a distance of 8 m in east and 6 m in north. Find the final displacement of ant and total distance also.
if body of weight 4 kg falling with the initial velocity 0 from the top of the building what is the velocity of it after 7 sec. and find the distance travel by this body also in that time. If he acceleration is 10 m/s^2.
Derive the equation of motion v² = u² + 2as.
A scooter acquires the velocity of 36 km/h in 10 sec just after the start. Calculate the acceleration and the distance of it.
Give two examples uniform circular motion and explain.

(Carrying three marks)

Derive the equation of motion s = ut + ½ at² by graphical method.
A train starting from rest in five min it acquired the velocity 10 m/s and find the acceleration and distance traveled in that time.
A moving train is brought to rest with in 20 sec by applying breaks. Find the initial velocity, if the retardation due to breaks is 2 m/s².

MOTION-2

Q. 1. When the passenger moving in a bus, the road side trees appear to be moving ------------------------------- (a) Back ward (b )Forward

Q. 2. In uniform motion the object covers ------------ (a) equal distance (b) unequal distance

Q. 3. Where objects cover unequal distances in equal interval of time then the motion is called ---------------- (a) uniform motion (b) non uniform motion

Q. 4. v = (a) t/s (b) s/t

Q. 6. An object travels 16m in 4sec and another 16 m in 2 sec. what is the average speed of the object----------- (a) 5.33 ms-1 (b) 5. 34ms-1

Q. 7. If we specify, its direction of motion along with its speed, the quantity that specifies with the aspects is called------------- (a) velocity (b) motion

Q. 8. The velocity of an object can be -------------- (a) non uniform or variable (b) uniform or variable

Q. 9. A car accelerate uniformly from 18 km h^-1 to 36 km h^-1 in 5 sec. calculate the acceleration------------- (a) 1ms^-2(b) 1 ms^-3

Q. 10. A train starting from rest attains a velocity of 72 km h^-1 in 5 minutes. Assuming that the acceleration is uniform. Find the distance traveled by the train for attaining this velocity --------------------------------- (a) 2km (b) 5km

Q. 2: A car goes from a town A to another town B with a speed of 40 km/h and returns back to the town A with a speed of 60 km/h. The average speed of the car during the complete journey is -

(a) 48 km/h (b) 50 km/h (c) zero

Q.4: The initial velocity of a body is u. It is under uniform acceleration a. Its velocity v at any time t is given by -

(a) v = u + at² (b) v = u + ½ at²(c) v = u + at (d) v = u.

Q.5: The distance covered in time t by a body having initial velocity u and having a uniform acceleration a is given by s = ut + ½ at². This result follows from -

(a) Newton’s first law

(b) Newton’s second law

Q.6: A ball is thrown vertically upwards. It rises to a height of 50 m and comes back to the thrower,

(a) the total distance covered by the ball is zero.

(b) the net displacement of the ball is zero.

Q.7: In 12 minutes a car whose speed is 35 km/h travels a distance of

(a) 7 km (b) 3.5 km (c) 14 km (d) 28 km

Q.8: When a graph of one quantity versus another results in a straight line, the quantities are -

(a) both constant (b) equal (c) directly proportional ( d) inversely proportional

Q.9: A body moving along a straight line at 20 m/s undergoes an acceleration of -4 m/s². After two seconds its speed will be -

(a) -8 m/s (b) 12 m/s ( c) 16 m/s (d) 28 m/s.

Q.10: A car increases its speed from 20 km/h to 30 km/h in 10 seconds. Its acceleration is

(a) 30 m/s² (b) 3 m/s²(c) 18 m/s²(d) 0.83 m/s²

Q.11: A body whose speed is constant

(a) must be accelerated (b) might be accelerated (c) has a constant velocity (d) can not be accelerated.

Q.12: When the distance that an object travels is directly proportional to the length of time it is said to travel with

(a) zero velocity (b) constant speed (c) constant acceleration (d) uniform velocity

Q.13: a particle moves with uniform positive acceleration. Its velocity-time graph will be

(a) a straight line parallel to the time axis

(b) a straight line inclined at an obtuse angle to the time axis

(d) none of these.

Q.15: A particle experiences constant acceleration for 20 seconds after starting from rest. If it travels a distance s₁ in the first 10 seconds and distance s₂in the next 10 seconds then,

(a) s₂ = s₁(b) s₂ = 2s₁(c) s₂ = 3s₁(d) s₂ = 4s₁

Q.16: In which of the following cases the object does not possess an acceleration or retardation when it moves in

(a) upward direction with decreasing speed

(b) downward direction with increasing speed

(d) with constant speed along horizontal path

Q.17: A person travels distance πR along the circumference of a circle of radius R. Displacement of the person is

(a) R (b) 2R (c) 2πR (d) zero

Q.18: The velocity of an object is directly proportional to the time elapsed. The object has

(a) uniform speed (b) uniform velocity (c) uniform acceleration (d) variable acceleration

Biology Cell- the fundamental unit of life

Q.1: The largest cell in the human body is -(a)Nerve cell (b) Muscle cell (c)Liver cell (d)Kidney cell
Q.2: The barrier between the protoplasm and the other environment in an animal cells -

(a)Cell wall (b) Nuclear membrane (c) Tonoplast (d) Plasma membrane
Q.3: The term ‘Cell’ was given by -(a)Leeuwenhoek (b) Robert hooke (c) Flemming (d) Robert Brown
Q.4: Who proposed the cell theory? - (a)Schleiden and Schwann (b) Watson and Crick (c) Darwin and Wallace (d) Mendel and Morgan
Q.5: A plant cell differs from an animal cell in the absence of -(a)Endoplasmic Reticulum (b) Mitochondria (c) Ribosome (d) Centrioles
Q.6: Centrosome is found in -(a)Cytoplasm (b) Nucleus (c) Chromosomes (d) Nucleolus
Q.7: The power house of a cell is -(a)Chloroplast (b) Mitochondrion (c) Golgi apparatus (d) Nucleolus

Q.8: Within a cell the site of respiration (oxidation) is the -(a)Ribosome (b) Golgi apparatus ( c) Mitochondrion (d) Endoplasmic Reticulum
Q.9: Which is called ‘Suicidal Bag’?a)Centrosome (b) Lysosome (c) Mesosome (d) Chromosome
Q.10: Ribosomes are the center for -

(a)Respiration (b) Photosynthesis (c) Protein synthesis (d) Fat synthesis
Q.11: Double membrane is absent in -(a)Mitochondrion (b) Chloroplast (c) Nucleus (d) Lysosome
Q.12: Cell organelle found only in Plant is -(a)Golgi apparatus (b) Mitochondria (c) Plastids (d) Ribosomes
Q.13: Organisms lacking nucleus and membrane bound organelle are -(a)Diploids (b) Prokaryotes (c) Haploids (d) Eukaryotes
Q.14: Animal cell is limited by –(a)Plasma membrane (b) Shell membrane (c) Cell wall (d)Basement membrane
Q.15: The network of Endoplasmic Reticulum is present in the -(a)Nucleus (b) Nucleolus (c)Cytoplasm (d)Chromosomes
Q.16: Lysosome are reservoirs of –(a)Fat (b) RNA (c) Secretary Glycoprotein (d) Hydrolytic Enzymes
Q.17: The membrane surrounding the vacuole of a plant cell is called -(a)Tonoplast (b) Plasma membrane (c)Nuclear membrane (d)Cell wall
Q.18: Cell secretion is done by -(a)Plastids (b) ER (c)Golgi apparatus (d)Nucleolus
Q.19: Centrioles are associated with -(a)DNA synthesis (b) Reproduction (c)Spindle formation (d)Respiration
Q.20: Main difference between animal cell and plant cell is -(a)Chromosome (b) Ribosome (c)Lysosome (d) Endoplasmic Reticulum
Q.21: Animal cell lacking nuclei would also lack in -

(a) Chromosome (b) Ribosome (c) Lysosome (d) Endoplasmic Reticulum
Q.22: Plasmolysis occurs due to -(a)Absorption (b ) Endosmosis (c)Osmosis (d)Exosmosis
Q.23: A plant cell becomes turgid due to -

(a)Plasmolysis (b) Exosmosis (c) Endosmosis (d) Electrolysis

Q.24: Solute concentration is higher in the external solution -

(a)Hypotonic (b) Isotonic (c) Hypertonic (d) None of the above
Q.25: A cell placed in hypertonic solution will -

(a)Shrink (b) Show Plasmolysis (c) Swell up (d) No change in shape or size
Q.26: The radiant energy of sunlight is converted to chemical energy and is stored as -

(a)AMP (b) ADP (c)ATP (d)APP
Q.27: Which of the following organelle does not have membrane?

(a)Ribosome (b) Nucleus (c) Chloroplast (d)Mitochondria
Q.28: Root hair absorbs water from soil through -

(a)Osmosis (b) Active transport (c) Diffusion (d)Endocytosis
Q.29: The number of lenses in compound light microscope is -

(a)2 (b)3 (c)4 (d)1
Q.30: The history of the cell began in 1665 with the publication of Micrographia in London by -

(a)Robert Hooke (b) Robert Brown (c) Strasburger (d)Dujardin
Q.31: Cell inclusions are -

(a)Non-living materials present in the cytoplasm (b) Another name of cell organelle (c) Cytoskeletal framework of cell (d) Combined name for cell wall and plasma membrane
Q.32: Which cell organelle is not bounded by a membrane -(a)Ribosome (b) Lysosome (c)ER (d)Nucleus
Q.33: Which of the following cellular part possess a double membrane?(a)Nucleus (b) Chloroplast (c)Mitochondrion (d)All of the above
Q.34: Cristae and Oxysomes are associated with -(a)Mitochondria (b) Plastids (c)Golgi apparatus (d)Plasma membrane
Q.35: Karyotheca is another name of -(a)Nuclear envelope (b) Nucleus (c)Nuclear pores (d)Nucleolus
Q.36: Cell organelle that acts as supporting skeletal framework of the cell is -(a) Golgi apparatus (b) Nucleus (c) Mitochondria (d) ER
Q.37: Plastids are present in -(a)Animal cell only (b) Plant cells only (c)Both animal cells and Plant cells (d)Neither animal nor plant cell
Q.38: Cell wall of plant is chiefly composed of -(a)Hemicellulose (b) Cellulose (c)Phospholipids (d)Proteins

Q.39: Intercellular connections of plant cells are called -(a)Middle lamella (b)Micro fibrils (c)Matrix (d)Plasmodesmata
Q.40: Genes are located on the -(a)Chromosomes (b)Nucleolus (c)Nuclear membrane (d)Plasma membrane
Q.41: Chromatin consists of -(a)RNA (b) DNA (c)RNA and histones (proteins) (d)DNA and histones (proteins)
Q.42: Different types of chromosomes can be recognized by the positions of the following separating the two arms (a)Centromere (b) Genes (c) Spindle (d)Nucleus
Q.43: Name of the process that requires energy provided by ATP -(a)Diffusion (b) Osmosis (c) Active transport (d)Plasmolysis

PHYSICS / CHEMISTRY

Q.1         Is the motion of moon around earth uniform or accelerated? Explain in one sentence.
Q.2         The property of diffusion is very fast in gases why? Explain in short
Q.3         A particle size of substance X presenting water is 89nm. What will be nature of solution expected.
Q.4         Define 1 Newton force.
Q.5         An object moving on straight line shown by graph. Calculate the distance traveled in 3 sec.

Q.6 Write the boiling point of water in C and K.

Q.7 What would be force of gravitation between two objects if both masses become halved?

Q-8 A scooter is moving with a velocity of 40km/hr. What will the velocity after 2 hrs. if motion isuniform
Q.9 How will you separate cream from milk? Write the principle of this method.

Q.10 What is Tyndall effect? Why it is not shown by true solution. 3x7=21

Q.11 (a) State the universal law of gravitation (b) Drive the relation between g and G.

Q.12 A ball thrown up is caught back by thrower after 6 sec. Calculate the velocity with which the ball was thrown up and maximum height attained by ball.

Q.13 Consider the two objects of masses m1 and m2 with velocities u1 and u2 they collide and velocity changes v1 and v2. State e the law associated with change in momentum and prove is expression.

Q.14 Draw the flow chart showing the separation of gases of AIR.

Q.15 100ml alcohol has been dissolved in 400ml of water. Calculate the concentration by volume percentage of solution.

Q.16 Write all three equations of motion and drive the second equation of motion.

Q.17 Test tube A contained 10ml water in test tube and kept near a window, Test tube B contained same quantity of water in china dish and kept near a window, Test tube C same quantity of water in china dish kept inside shelf. After 2 days it was observed hat some quantity of water was remain in test tube A and water of testtube B evaporated quickly than that of testtube C. What did you conclude by this experiment explain.

Q.18 Give reasons in brief.

a. While catching a fast moving ball why a fielder pulls his hands back wards?

b. Why a fireman holds the hose pipe very tightly when he directs a powerful stream of water on fire.

c. Why it is advised to tie any luggage kept on the roof of the bus with rope.

d. Why Naphthalene balls disappear with time without leaving any solid.

Q.19 Explain in brief :

a. Function of loading tank in water purification system.

b. What is latent heat of fusion? Why flow of cold water is allowed on burnt part of skin?

c. Basic difference between distillation and fractional distillation.

MCQ

Q.20 Four students were provided the test tube holders, test tubes and some chemical. The teacher asked them to take some quantity of chemical in the test tube in heat in correct way. The correct way of heating is shown in set up is:

Q.21 Which one of the statements is a correct statement regarding he mass an object.

a. It changes from place to place

b. It is more at the pole than at the equator

c. It remains same at all places.

d. It increases when we displace a body from earth to moon.

Q.22 Which of the following is not a mixture?

a. Brass b. 22-carat gold jewellery

c. 24-carat gold ring d. Alum

Q.23 To prepare a colloidal solution of egg albumin in water, you will add

a. A small amount of the white of the egg in water and stir.

b. A small amount of yellow of the egg in water and sir.

c. Mix the yellow and white of the egg and then add a small amount of it to water and stir.

d. Use the method (b) but take hot water.

Q.24 The value of acceleration due to gravity depends on the

a. mass of the earth b. mass of the body

c. shape and the size of the body d. none of the above

Q.25 Action and reaction act on

a. The same body in opposite direction.

b. The same body in same direction.

c. The different bodies in same direction

d. The different bodies in opposite directions.

Q.26 A little soil was stirred into water taken in a breaker. The breaker was allowed to stand. The mud was found to settle down The contents were filtered. The filtrate will be.

a. A colloidal solution b. A true solution

c. A suspension d. Can be a true solution or a colloidal solution

Q.27 Which one of the following set represents same type of solution

a. Milk emulsion, Sugar b. Fog, Milk, Salt

c. Gel, Cheese, Chalk Powder d. Boot Polish, Butter, Cheese

Q.28 Two balls A and B of masses m and 2m are in motion with velocities 2v and v respectively. Their momenta are in the ratio.

a. 1 :2 b. 2 :1 c. 1 : 1 d. 4 :1

IX – BIOLOGY

Q.1 The ……………………. Tissue is found

a. in flowers b. at the tip of the leaves

b. below the epidermis d. at root tip

Q.2 The long narrow thick cells which are not living are

a. part of xylem b. collenchyma

c. sclerenchyma d. parenchyma

Q.3 Murrahis a high yielding variety of

a. cow b. pig c. poetry d. buffalo

Q.4 The cellular component not seen in the temporary mount of onion peel under a compound microscope is :

a. Cell wall b. Nucleus c. Chromosomes d. Cytoplasm

Q.5 Smooth ER helps in the

(a). Synthesis of proteins (b). Protecting the cells .(c) Synthesis of fat (d.) Performing cell respiration

Q.6 Which of the following play an important part in cell respiration.

(a). Lysosomes (b )Ribosomes (c). Golgibodies (d). Mitochondria

Q.7 a. What is the advantage of inter cropping and mixed cropping.

b.What is green revolution

c.How is prokaryotic cell different from a eukaryotic cell?

Q.8 aWhat are cell organelles. Explain ER, GA, mitochondria, Lysosomes in detail. Draw he diagram of plant cell.

Give a small account of meristenative cells.

Q.9 What are the functions of chromosomes. State the differences between leucoplast and chromoplast and why is plasma membrane called selectively permeable.

Q-10. Which process is used in washing machine to squeeze(rinse) water from clothes?

Q-11. Name the types of simple tissues.

Q-12. What is the value of ‘g ‘at the centre of earth?

Q-13. Name the physical quantity corresponds to rate of change of momentum.

Q-14. What do you mean by saturated solution?

Q-15. Why does our palm feel cold when we put some acetone or petrol on it?

Q-16. Give two reasons to support that water is a compound and not a mixture.

Q-17. If the moon attracts the Earth, why does he earth not move towards the moon?

Q-18. Explain why some of the leaves may get detached from a tree if we vigorously shake its branch?

Q-19. What are the values of distance and displacement in covering 10 m from P to Q and coming back?

Q-20. State any two conditions necessary for good health.

Q-21. What are functions of stomata?

Q-22. Which organelle is known as the powerhouse of the cell? Why?

Q-23. Differentiate between mixture and compound.

Q-24. What is chromatography? Write its any two applications.

Q-25. A solution contains 5 mL alcohol in 70 mL of water. Calculate the volume by volume percentage of solution.

Q-26. Write the differences between mass and weight.

Q-27. From a rifle of mass 4 kg, a bucket of mass 50 g is fired with an initial velocity of 35 m/s. Calculate the initial recoil velocity of the rifle.

Q-28. Why is it difficult to hold a school bag having strap made of thin and strong string?

Q-29. Draw a labelled diagram of neuron.

Q-30. What is immunization ? What are the immunization programmes available at the nearest health centre in your locality?

Q-31. Differentiate between osmosis and diffusion.

Q-32. Write the differences between solid, liquid and gas.

Q-33. What is factional distillation? When it is used? Explain with an activity.

Q-34. The graph shows the speed of a car changes with time:

(a) What is initial speed of car?

(b) What is maximum speed attained by car?

(d) Which part of graph shows varying retardation?

(e) Find the distance travelled in first 8 hours.

(a) Why does a ship not sink while a metal block sinks?

(b) Why does a man experiences more pressure while standing than while lying down on the floor?

4. (a) Why is plasma membrane called a selectively permeable membrane?

(b) How does carbon dioxide move in and out of the cell?

(a) Differentiate between plant tissue and animal tissue.

(b) Write the difference between bone and cartilage.

5. Which of the following is the correct set up to determine the melting point of ice?

6. A magnet is repeatedly moved closely over a mixture of iron powder and sulphur powder. Which of the following is not observed?

(a) Iron powder is attracted towards magnet (b) sulphur powder is left behind

(c)black powder is left behind (d) iron powder and sulphur powder are separated

28) The colour of magnesium ribbon is

(a) grayish white (b) brown (c) black (d) grayish black

29) While heating ammonium chloride and sodium chloride mixture, keep your face away from vapours because:

(a) chlorine vapours may cause irritation in eyes (b) ammonia vapours may cause irritation in eyes

(30) In which of the following you observed that the particles settle down on standing?

(a) common salt solution (b) muddy water (c) starch solution (d) egg albumin in water

(31) To prepare a colloidal solution of starch , we should:

(a) add starch powder to boiling water and cool (b) add starch powder to cold water and boil

(32) A mixture of iron fillings and sulphur is heated, the colour of the mixture will change:

(a) black to yellow (b) yellow to black (c) black to brown (d) brown to yellow

(33) The colour that indicates that dal is adultered with metanil yellow is:

(a) crimson (b) pink (c) red (d) brown

34) To observe onion cells in an onion peel, we must prepare the slide by mounting on it:

(a)crushed pulp of onion (b) dry scale leaf (c) green leaf of onion (d) thin layer of fleshy leaf of onion

35) When we determine the boiling point of liquid, the thermometer

(a) should dip into liquid (b) should be above the liquid and vertical (c) should touch the bottom of container (d) should be placed slanting in the liquid

36) A blue black colour precipitate with iodine solution indicates the presence of :

(a) Glucose (b) Protein (c) Fat (d) Starch

37) The aqueous solution of salt and sand can be separated by

(a) Filteration followed by evaporation (b) Filtration followed by crystallization

38) The structure responsible for receiving impulse in a nerve cell is:

(a) Dendrite (b) Axon (c) Cell body (d) Nucleus

39) The path of light clearly visible in which of the following

(a) True solution (b) Colloidal solution (c) Suspension (d) Homogenous mixture

40) The colour of copper sulphate is

(a) Black (b) Blue (c) Brown (d) Colourless 41) To prepare a colloidal solution of egg albumin, we should : (a) add egg albumin to boiling water (b) add egg albumin to tap water (c) add egg albumin to dil. HCL (d) mix egg albumin with egg yolk