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1. Which of the following units does not represent energy?A. N mB. W s

C. Pa m3

D. kg m s-2

2.

t /s0 10

a

20 30

A car starts from rest and travels along a straight road. The acceleration-time graph of the car is

shown above. Which of the following graphs shows the variation of the velocity v of the carwith time t?

A.

v

0 10t /s

3020

B.

v

0 10t /s

3020

C.

v

0 10t /s

3020

D.

v

0 10t /s

3020

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3. An astronaut lands on the moon and finds that his weight is about one-sixth of that on earth.

Which of the following deductions is/are correct?

(1) If he throws an object upwards on the moon, it will reach a higher level thanthrowing the object with the same speed on earth.

(2) If he releases an object on the moon, it will take a shorter time to reach the ground

than releasing the object from the same height on earth.(3) The maximum weight he can lift on the moon is greater than on earth.

A. (1) only

B. (3) onlyC. (1) and (2) only

D. (2) and (3) only

4 In a traffic accident, the driver wearing a seat-belt experiences a smaller impulsive forcebecause it

A. absorbs some of the force.

B. increases the drivers inertia.C. decreases the impulse.

D. increases the impact time.

5 A car is moving up an inclined plane at uniform speed. The power output by the car engineshould

A. increase uniformly.

B. remains constant.C. decreases uniformly.

D. becomes zero.

6.

In the diagram, the angle between mirrors M1 and M2 is 60o. An incident ray is reflected first by

M1 and then by M2. What are the angles a and b?

a bA. 40o 50o

B. 40o 70o

C. 80o 50o

D. 80o 70o

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7. An object is placed in front of a convex lens L in the region X1 C1 , as shown in figure 16 If F isthe focus of the lens, where will be the image formed?

Figure 16.X1 C1 F1 O F C X

A. between C and X B. between F and C. C. between O and FD. between F1 and O. E. between C1 and F1

8.

50 o

A ray of light travels in air and strikes a rectangular glass block at an angle of incidence 50 o.

The critical angle of the glass is 42o. Which of the following diagrams best shows the path of

the ray?

A.

B.

C.

D.

9. Which of the following is / are example(s) of total internal reflection?(1) fish-eye view

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(2) bending of chopstick in water

(3) optical fibre

A. (1) onlyB. (3) only

C. (1) and (2) only

D. (2) and (3) only

10.

Temperature

X Y

Z

Energy

absorbed

Equal masses of liquidsX, YandZare separately heated. The above graph shows the variation

of the energies absorbed by the liquids with their temperatures. Let CX, CYand CZbe the

specific heat capacities ofX, YandZrespectively. Which of the following relations is correct?

A. cX= cY> cZB. cX= cY< cZC. cX> cY= cZD. cX< cY= cZ

11. A block of melting ice with mass 0.02 kg is put into a polystyrene cup containing 0.3 kg of waterwith initial temperature 20oC. After the mixture is stirred well, the ice block melts completely and

the final temperature of the water becomes 14oC. Which of the following equations can be used tofind the specific latent heat of fusion of ice,L?

A. 0.3 4200 6 = 0.02L - 0.02 4200 6

B. 0.3 4200 6 = 0.02L + 0.02 4200 6

C. 0.3 4200 6 = (0.02L + 0.02 4200) 14

D. 0.3 4200 6 = 0.02L + 0.02 4200 14

12.

The above apparatus is used to find the specific latent heat of vaporization of water v. Which

of the following factors will cause the result obtained to be larger than the true value of v?

i. Some energy is lost to the surroundings.

ii. Some steam condenses and drips back into the beaker.iii. Some boiling water inside the beaker splashes out of the beaker.

A. (1) only


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D. (2) and (3) only

13.

14.

The insulated uncharged metal spheresXand Yare placed in contact. A positively-charged rod

is brought nearXas shown above. Xis then earthed momentarily. The charged rod is removedand the two spheres are then separated. Which of the following describes the charge onXand

Y?

SpheresX Sphere YA. negative negative

B. negative positive

C. positive negative

D. positive positive

15.

The electric field pattern of three charged spheres is shown in the figure. The charge carried by

the spheres are:

P Q RA. + - +

B. - + -C. + - -

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A small pellet of mercury (density , length l) traps some air inside a

graduated capillary tube of uniform cross-section. When the tube is held

upright as shown in figure (a), the length of trapped air is l1. When the

tube is inverted (figure (b)), the length of trapped air becomes l2 (l2 > l1).Find the atmosphere pressurePa.

A. gll

l

1

2

B. glll

ll

+ 12

21

C. glll

ll

12

21

D. glll

ll

+

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D. - + +

16.

In the above circuit, the reading of the ammeter is 0.4 A. Find the resistance of the resistorR.

A. 3 B. 6 C. 9 D.12

17.

If the ammeter in the above circuit reads 3 A, find the voltage of the battery.

A.11V B.12V C.13 V D.14V18.

A resistor and a bulb are connected in parallel to a 9V battery as shown above. The reading ofthe ammeter is 5A. If the power dissipated by the resistor is 18W, find the power dissipated by

the bulb.

A.13.5 W B. 18 W C.22.5 W D.27 W

19.

Left

Upwards

Right

Downwards

X Y Z

The above diagram shows the cross-section of three parallel straight wiresX, YandZ. Xand Y

carry currents flowing out of the paper andZcarries a current flowing into the paper. What is

the direction of the resultant force acting on Y?A.towards the left

B.towards the right

C.upwardsD.downwards

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20Which of the following methods can be used to convert a milliammeter to measure larger

current?

a. Connect a resistor of low resistance in series with it.

b. Connect a resistor of high resistance in series with it.

c. Connect a resistor of low resistance in parallel with it.d. Connect a resistor of high resistance in parallel with it.

21

The figure above shows an electromagnet which is used to pick up iron objects. Which of the

following can increase the strength of the electromagnet?

i. increasing the number of turns of the coil

ii. reducing the resistance of the variable resistoriii. replacing the battery with a 12V a.c. power supply

A. (1) only


D. (2) and (3) only

22. A man walks 2 km due North in 1 hour and 2 km due East in thenext hour as shown. His total displacement isA. 4 km due North.

B. 2 km due North.

C. 4 km due East.

D. 2 2km due North East.

E. 4 km due North East.

23. The stroboscopic plate is taken at a frequency of 20 Hz. Try to calculate

the downward acceleration.A. 0.15 ms-2

B. 2.93 ms-2

C. 1.60 ms-2

D. 3.20 ms-2

E. 14.70 ms-2

24.The v-tgraph of a 2 kg object is shown. Find the net forceacting on the object in region (1) and (2).

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Force in (1)/N Force in (2)/N

A. 0 0

B. 0 2

C. 1 0

D. 1 2

E. 2 0

25The diagram shows the appearance and size of a face. Which of the following

figures correctly show(s) the image possibly formed when the face is view

through a diverging lens ?

26. The following graph shows the variation of quantity YwithX. DetermineX,

Yand the condition under which the relation is true.

27. Which of the following is/are the application (s) of electrostatics ?

(1) Telephone

(2) photocopying

(3) dust precipitator in smoke ventA. (1) only

B. (2) only

C. (1) and (2) onlyD. (2) and (3) only

E. (1), (2) and (3)

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28. Arrange the following circuits in ascending order of their equivalent resistances betweenXand Y.

A. (1), (2), (3)

B. (1), (3), (2)

C. (2), (3), (1)

D. (3), (2), (1)

E. (3), (1), (2)

29. Which of the following statements correctly describes electric current ?

A. The speed of electrons in metres per second.

B. The number of electrons passing through per second.

C. The number of protons passing through per second.

D. The amount of negative charge in coulombs passing through per second.

E. The amount of positive charge in coulombs passing through per second.

30.In the given circuit, all resistors are identical. If the keyKin the circuit is closed, what are thechanges on the readings of ammeters A1 and A2 ?

Reading of A1 Reading of A2

A. increases decreases

B. increases increases

C. decreases decreases

D. increases no change

E. decreases no change

31. Two identical light bulbs of rating 220 V 60 W are connected in series to the 220 V mains. The

total power dissipated is :

A. 15 W

B. 30 W

C. 60 W

D. 120 W

E. 240 W

32. In the given circuit, which resistor should bereplaced by the light bulb to get the brightest

illumination ?

A. 4

B. 5

C. 6

D. 7

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E. 8

33

A student performs an experiment to demonstrate an electrical motor as shown.

He observes the coil motion at the position shown in the figure. When switch Kis

closedA. the coil will oscillate about its position.

B. the coil will turn in anti-clockwise direction

C. the coil will turn in clockwise direction.

D. the coil will turn 90 and then stop turning.

34. A light conducting rod is supported on two smooth fixed

conducting rails as shown in the figure. A magnetic field is

applied in the direction shown. What will happen to the rod

PQ when the switch Sis closed ?

A. It remains at rest.

B. It moves to the left.

C. It moves to the right.

D. It jumps out of the page. Left Right

E. It moves downwards.

35.

Rabbits usually built its habitats at the hill side to created better air circulation. Thesephenomena can explained by

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A. Newtons Law

B .Bernoulli principle

C .Boyle lawD. Archimedes principle

E. Lenz law

36

A bar magnet is pleased near a solenoid . Which of the following correctly shows thedirection of the induced current in the solenoid?(The arrow indicates the direction of motion of magnet or solenoid)

37. Three identical light bulbs of rating 12 V, 40 W are connected to a transformer as shown.

Neglecting any energy loss in the transformer, find the current in the primary coil.

A. 0.5B. 0.75C. 1D. 5E. 10

38.

39. In a vacuum, an object has no

A volume B buoyant force C weight D temperature

40. A loaded ship gradually passes from a lake (fresh water) to the ocean (salt water). Saltwater is

more dense than fresh water and as a result the ship will

0A. ride higher in the water.1B. ride lower in the water.

The reason why an airplane wing generates lift is because

A Bernoulli's principle C Law of conservation of energy

B Archimedes' principle D Law of air pressure

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2C. settle the same level in the water.3D. experience an increase in the buoyant force.4E. experience a decrease in the buoyant force.5

41. A child is drinking a liquid with a straw. Which of the following statements is true?

A. The fluid is being pulled up into the straw.

B. It is easier to use a longer straw than a shorter straw, because liquid weight increases thepressure at the bottom.

C. When the pressure in the straw is reduced, atmospheric pressure on the surface of the liquid

pushes the liquid up the straw.

42. A hydraulic jack is used to lift a load of weight 1000 N. The load-bearing cylinder has a

radius of 4 cm, and the other piston has a radius of 1 cm. What force must be exerted on the

smaller piston to support the load?A. 62.5 N

B. 125 N

C. 250 ND. 1000 N

E. 4000 N

43. Which instrument gives the most accurate measurement ?

44. The diagram shows the reading of an aneroid barometer in an aeroplane which islocated 2 km from the sea level.

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What is the reading of the aneroid barometer when the aeroplane lands in an airport at

the sea level?

45. The diagram shows a force F exerted on piston S.

Which statement is correct?

A The force at piston S is similar to the force at piston T.B The pressure at piston S is similar to the pressure at piston T.

C The distance moved by piston S is equal to the distance moved by piston T.

D The distance moved by piston T increases if the surface area of T increases.

46Figure a shows the velocity-time graph of the motion of a car.

Which of the following shows the acceleration time graph of the car?

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47

The above figure shows a trolley moving with uniform velocity towards the right. A lump ofplasticine is dropped onto the trolley and sticks on it. What are the effects of the plasticine on the

speed, momentum and kinetic energy of the loaded trolley ?

Speed momentum kinetic energy

A. decreased unchanged decreased

B. decreased unchanged unchangedC. decreased decreased decreased

D. unchanged unchanged unchanged

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In the circuit shown, Vis a voltmeter of high internal resistance andA is an ammeter of low

internal resistance. What is the voltmeter reading when (a) switchKis open, (b) switchKis closed ? Kopen Kclosed

A. 0 V 0 V

B. 0 V 2 V

C. 1 V 1 VD. 2 V 0 V

49

A shunted meter can read current up to a full scale of 50 mA when used as an ammeter and read

voltage up to a full scale of 1 V when used as a voltmeter. If the resistance of the shunt Sis 25 W,what is the resistance of the coilRo in the meter ?

A. 20 W

B. 50 W

C. 100 WD. 200 W

50.

The diagram shows the basic structure of a moving-coil

galvanometer. The sensitivity of a moving coilgalvanometer does not depend on

A. the number of turns of wire in the coil.

B. the area of the coil.C. the strength of the hairspring.D. the magnitude of the current measured by it.

(please remember to bring question paper to school for discussion)THE END

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