PHYSICS TUTORIAL QUESTIONS (Part 1) - xpino SCHOLARS

# xpino SCHOLARS

A work tool for teachers and students, but especially for Secondary School Students. Comprehensive lesson notes, with exercises. Past questions in specific subjects for revision and research.

## Friday, October 20, 2017

PAPER 1 (SS 1)

SECTION A- OBJECTIVES

1. Which of the unit of the following physical quantities are derived? i. Area ii. Thrust iii. Pressure IV. Mass (a)I,ii,iii and iv (b)i,ii,and iii only (c)i,ii and iv only (d) I and iii only ,(e) all of the above

2. Which of the following is not a vector quantity (a) momentum (b) force (c) Velocity (d) Temperature (e) none of the above

3. Which of the following is a derived unit? (a) Meter (b) Coulomb (c) Kilogram (d) Seconds (e) ohm

4. Which of the following instruments is suitable for making the most accurate measurement of the internal diameter of a test tube? (a) Meter rule (b) A pair of calipers(c) A micrometer screw gauge (d) A tape rule (e) meter bridge

5. Which of the following is a fundamental quantity? (a) Speed (b) Density (c) Length (d) Impulse (e) none of the above

6. Which of the following is a scalar quantity (a) momentum (b) Acceleration(c) Displacement (d) Distance (e) all the above

7. A barometer can be used to in determining i. Height of a mountain ii. Depth of a mine III. Dew point. Which of the following is/are correct? (a)I, ii and iii (b) ii and iii only (c) I and iii only (d) I and ii only (e) none of the above

8. A body of mass 5kg falls from a height of 10m above the ground? What is the kinetic energy of the body just before it strikes the ground? (Take g as 10m/s^2) (a) 5J (b) 25J (c) 250J (d) 500J (e) 1000J

9. Which of the following is not an example of Force? (a)Tension (b) Weight(c) Friction (d) Mass (e) wind

10. Which of the following is a derived unit? (a)Ampere (b) Kilogram(c) Seconds (d) Ohm (e) all the above

11. Which of the following is a scalar quantity (a) Tension (b) Weight (c) Impulse (d) Distance (e) all the above

12. In which of the following simple machines is the effort applied between the load and the fulcrum? (a)Scissors (b) Pliers(c) Wheel barrow (d) Sugar tongs (e) none of the above

13. The instrument used for measuring atmospheric pressure is? (a) Hydrometer (b) rate meter (c) barometer (d) photometer (e) hygrometer

14. Which of the following is a fundamental quantity (a) Heat capacity (b) Electric current(c) Impulse (d) Distance (e) velocity

15. An object falls freely from a height of 25m on to the roof of a building 5m high. Calculate the velocity with which the object strikes the roof (g=10m/s^2) (a)17m/s (b)20.0m/s (c) 24.5m/s (d)125.0m/s (e) 321m/s

16. Humidity is used to describe the amount of (a) air in water vapor (b) cloud available in the atmosphere (c) air in equal volume of cloud (d) water vapor available in the atmosphere (e) reduction

17. A device that converts mechanical energy into electrical energy is (a) a dynamo (b) an electric motor (c) an induction coil (d) a transformer (e) reduction cell

18. Which of the following phenomena is a practical evidence for the existence of the continual motion of molecules?(a)Translational motion (b) Rotational motion (c) Brownian motion (d) Oscillatory motion (e) linear motion

19. Which of the following sources of energy is renewable? (a)Sun (b) petroleum (c) Coal (d) Uranium (e) star

20. Which of the following quantities has the same units as energy? (a)Power (b) Work (c) Force (d) Momentum (e) all the above

21. The rising of a liquid in an open ended glass tube of narrow-bore is A. Osmosis. B. adhesion C. capillarity D.surface tension

22. which of the following substances is the most volatile at room temperature?

(a) water (b) Diesel (c) Petrol (d) Kerosene(e) reduction

23. A bird flies at 10 for 3s, 15 for 3s and 20 for 4s. Calculate the bird’s average speed. (a) 4.5 (b) 15.0 (c) 15.5 (d) 51.7

24. What type of motion does the skin of a talking drum perform when it is being struck with a drum stick?(a) Random (b) Rotational (c) Vibratory (d) Translational(e) Circular

25. The friction which exists between two layers of liquid in relative motion is called (a) Capillarity (b) Surface tension(c) Viscosity (d) sea saw (e) Arrow

26. An object is said to undergo oscillatory motion when it moves (a) In erratic manner (b) to and fro about a fixed point (c) In a circular path (d) along a continuous path from the starting point (e) In perpendicular way

27. The time rate of change of displacement is known as (a) Speed (b) Velocity(c) Impulse (d) Acceleration (e) motion

28. Which of the following types of motion does a body undergo when acted upon by a couple? (a)Vibrational (b) Translation(c) Rotational (d) Random(e) Oscillatory

29. Uniform speed occurs when there is equal change of(a) distance in equal times(b) displacement in equal times(c) velocity in equal times(d) acceleration in equal times (e) speed in equal times

30. A boy cycles continuously through a distance of 1.0km in 5 minutes, calculate his average speed? (a) 0.3m/s(b) 3.3 m/s (c) 16.6m/s (d) 20.0m/s (e) 200m/s

31. Mechanical energy be either(a) kinetic or electric(b) chemical or potential (c) potential or kinetic(d) electric or heat (e)potential or electric

32. The time rate of change of displacement is known as (a) Speed (b) Velocity(c) impulse(d) acceleration (e) motion

33. A body moving at constant speed accelerates when it is in ____ (a) rectilinear motion(b) translational motion (c) Circular motion (d) Vibrational motion(e) Rotational motion

36. A body of mass 25kg, moving at 3m/s on a rough horizontal floor is brought to rest after sliding through a distance of 2.50m on the floor. Calculate the coefficient of sliding friction. (g=10m/s2 (a) 0.0144 (b) 0.09 (c) 0.36(d) 0.18(e) 0.54

37. The instrument used for measuring atmospheric pressure is(a) Hydrometer (b) Ratemeter (c) Barometer (d)photometer(e) Manometer

38. A stone of mass 20kg is thrown vertically upwards with a velocity of 2.0m/s, calculate the initial kinetic energy of the stone?(a) 200J (b) 40J (c) 800J(d) 1600J

39. Which of the physical quantities is correctly paired with its corresponding S.Iunit?(a)Density(kg)(b)Power(J)(c) Specific latent heat () (d) pressure (N)(e) Time (Nm)

40. The period of an oscillatory motion is defined as the (a) average of the times used in completing different numbers of oscillations(b) time to complete a number of oscillations(c) time to complete one oscillation(d) time taken to move from one extreme position to the other(e) time to complete two oscillations

SECTION B- THEORY

1. Define physics?

(b). List and explain the division of physics

2. Find the dimension of the following quantities

(a) Power (b) Momentum (c) Density (d) Impulse (e) Pressure

3. Explain the following (i) Fundamental unit (ii) Derived unit,

4. An object of mass 400g attached to the end of a string is whirled round in a horizontal circle of radius 2.0m with a constant speed of 8m/s. calculate the centripetal force of the object.

5. (a) What is motion?

(b) Explain types of motion

6. Explain the following (i) Friction (ii) limiting friction (iii) static friction (iv) dynamic friction

PAPER 2 (SS 2)

SECTION A- OBJECTIVES

1. An object falls freely from a height of 25m on to the roof of a building 5m high. Calculate the velocity with which the object strikes the roof [g= 10 ms¯²] (a)17m/s (b)20.0m/s (c) 24.5m/s (d)125.0m/s (e) 24m/s

2. Which of the following phenomena is a practical evidence for the existence of the continual motion of molecules? (a)Translational motion (b) Rotational motion (c) Brownian motion (d) Oscillatory motion(e) Force

3. A body of mass 5kg falls from a height of 10m above the ground? What is the kinetic energy of the body just before it strikes the ground? (Take g as 10m/s^2) (a) 5J (b) 25J (c) 250J (d) 500J (e) 200j

4. Which of the unit of the following physical quantities are derived? i. Area ii. Thrust iii. Pressure IV. Mass (a)I,ii,iii and iv (b)i,ii,and iii only (c)i,ii and iv only (d) I and iii only

5.
A block of wood of mass 5 kg is pulled on a platform by a force of 40 N as illustrated in the diagram above. If the frictional force, F experienced by the block is 12 N, calculate the magnitude of the acceleration of the block.

(a) 2.4 ms-2 (b) 5.6 ms-2 (c) 8.0 ms-2 (d) 10.4 ms-2 (e) 10.7 ms-2

6. Solid friction, like viscosity, is________ (a) Independent on the surface areas in contact. (b) independent of the relative motion between layers. (c)dependent on normal reaction. (d) in opposition to motion. (e) no answer

7. The slope of a linear distance-time graph represents.

acceleration. (b)displacement. (c) speed. (d) velocity. (e) deceleration

8. A body of mass 2 kg is released from rest on a smooth plane inclined at an angle of 60° to the horizontal. Calculate the acceleration of the body down the plane. [g= 10 ms¯²]

(a) 3.1 ms-2 (b) 5.2 ms-2 (c) 6.0 ms-2 (d) 8.7 ms-2 (e) 7.0 ms-2

9. The total area under a force-velocity graph represents

(a) Energy(b) momentum (c) power (d) pressure (e) Force

Use the following information to answer questions 10 and 11.

10. A body of mass 20 g projected vertically upwards in vacuum returns to the point of projection after 1.2 s. [g = 10 ms¯²] Calculate the speed of projection.

(a) 0.6 ms-1 (b) 1.2 ms-1 (c) 6.0 ms-1 (d) 12.0 ms-1 (e) 12 ms-1

11. Determine the potential energy of the body at the maximum height of its motion.

(a). 0.36 J (b) 0.72 J (c). 360.00 J (d)720.00 J (e) 12j

12. Four co-planar forces of magnitudes 10N, 17N, 6N and 207N act at point O as shown in the diagram above. Determine the magnitude of the resultant force. (a) 53.0 N (b) 21.0 N (c) 7.0 N (d) 5.0 N (e) 12N

13. The maximum displacement on either side of the equilibrium position of an object in simple harmonic motion represents _____ (a) Period. (b)amplitude (c) wavelength (d) frequency. (e)Sugar

14. From Newton's first law of motion,

(a) A body can only undergo translational motion.

(b) Once a body remains at rest no force acts on it.

(c) The net force acting on a body in uniform linear motion is zero.

(d) A body's inertia is its weight.

(e) Tension

15. A body of mass 11 kg is suspended from a ceiling by an aluminum wire of length 2 m and diameter 2 mm. Calculate the elastic energy stored in the wire.

16. Young’s modulus of aluminum is 7.0 x 10¹⁰ Nm¯²; g=10 ms¯²; Ï€= 3.14]

(a) 1.1 x 10¯¹J (b) 5.5 x 10¯²J (c) 1.1 x 10¯⁴J (d) 5.5 x 10¯⁵J (a) 1.1J

17. The velocity ratio of an inclined plane

(a) Increases with increase in the angle of inclination.

(b) Increases with decrease in the angle of inclination.

(c) Decreases with decrease in the angle of inclination.

(d) Is independent of the angle of inclination.

18. Which of the following types of thermometers is used for the calibration of other thermometers? (a) Liquid-in-glass thermometer (b) Constant volume gas thermometer (c) Optical pyrometer (d) Thermocouple (e) wave

19. In which of the following simple machines is the effort applied between the load and the fulcrum? (a)Scissors (b) Pliers (c)Wheel barrow (d)Sugar tong (e) Tension

20. A charge of 2.0x 10¯⁵ C experiences a force of 80 N in a uniform electric field Calculate the magnitude of the electric field intensity.

(a) 8.0 x 10⁶NC¯¹ (b) 4.0 x 10⁶NC¯¹ (c) 4.0 x 10⁴NC¯¹(d) 2.0 x 10⁴NC¯¹

(e) 1.1 x 10¯⁴ NC¯¹

21. Which of the following is a scalar quantity (a) Tension (b) Weight(c) Impulse (d) Distance (e) Tension

22. Which of the following sources of energy is renewable? (a)Sun (b) petroleum (c) Coal (d) Uranium (e) frequency.

23. Which of the unit of the following physical quantities are derived? i. Area ii. Thrust iii. Pressure IV. Mass (a)I,ii,iii and iv (b)i,ii,and iii only (c)i,ii and iv only (d) I and iii only

24. Which of the following is not a vector quantity? (a) momentum (b) force (c) Velocity (d) Temperature (e) frequency.

25. Which of the following is a derived unit? (a) Meter (b) Coulomb (c) Kilogram (d) Seconds (e) frequency.

26. Which of the following instruments is suitable for making the most accurate measurement of the internal diameter of a test tube? (a) Meter rule (b) A pair of calipers(c)A micrometer screw gauge (d)A tape rule (e) frequency.

27. Which of the following is a fundamental quantity? (a) Speed (b) Density (c) Length (d) Impulse(e) Optical

28. Which of the following is a scalar quantity (a) momentum (b) Acceleration (c) Displacement (d) Distance (e) Optical

29. A barometer can be used to in determining i. Height of a mountain ii. Depth of a mine III. Dew point. Which of the following is/are correct? (a)I, ii and iii (b) ii and iii only (c) I and iii only (d) I and ii only

30. A body of mass 5kg falls from a height of 10m above the ground? What is the kinetic energy of the body just before it strikes the ground? (Take g as 10m/s^2) (a)5J (b)25J (c) 250J (d) 20J(e) 500J

31. Which of the following is not an example of Force? (a)Tension (b) Weight(c) Friction (d) Mass (e) Optical

32. Which of the following is a derived unit? (a)Ampere (b) Kilogram(c) Seconds (d) Ohm (e) Optics

33. When taken a penalty kick, a footballer applies a force of 30N for a period of 0.05secs. If the mass of the ball is0.075kg, calculate the speed with which the ball moves off. (a) 20 (b) 5 (c) 25 (d) 120 (e) 2

34. A ball of mass 5.0kg hits a smooth vertical wall horizontally with a speed of 2 and rebounds with the same speed. Determine the impulse experienced by the ball. (a)25Ns (b) 20Ns (c) 15Ns (d) 30Ns (e) 22Ns

35. A body is projected horizontally downwards from a rock 80m high with a velocity of 20. Calculate the time taken for the ball to fall to the ground. (a)2secs (b) 22secs (c) 15secs (d) 4secs (e) 12secs

36. A stone is shot out from a catapult with initial velocity of 30 at an elevation of . Find the time of flight (g= 10) (a)5.19secs (b) 6.17secs (c) 12.5secs (d)2. 41secs (e) 1.12secs

37. An object of mass 1000kg moves with a velocity of 20 in mins. Find the force of the object. (a)133.3N (b)113.1N (c)133.1N (d)100. 3N (e)1 22.3N

38. The area under a velocity – time graph represents (a) final velocity attained (b) distance covered (c) acceleration (d) work done

39. In the absence of gravitational force, weight of a body is (a) its mass (b) zero (c) its density (d) its volume

SECTION B-THEORY

1. A projectile is released with speed u at an angle 0 to the horizontal. With the aid of diagram, show that time of height is equal to, where g is the acceleration of free fall.

2. The horizontal component of the initial speed of a particle projected at 300 to the horizontal is 50 ms-1.If the acceleration of free fall due to gravity is 10ms-2, determine its:

(a) Initial speed

(b) Speed at the maximum height reached

3. State the parallelogram law of vector addition.

(b) Name the four physical quantities that are associated with the equations of linear motion

4. Lead bullet of mass 50g is fired with a velocity of 200 into a lead block of mass 950g. given that the lead block can move freely, calculate (i) the kinetic energy after impact

(ii) the loss energy

5. A trolley of mass 4kg moving on a smooth horizontal platform with a speed of 1.0 collides perfectly with a stationary trolley of the same mass on the same platform. Calculate the total movement of the two trolleys immediately after collision.

6. A uniform meter rule is placed horizontally at a fixed point while masses are suspended at both right and left hands of the ruler. From the centre of the a mass M, is hung20.5cm away from the centre and a mass of 0.1kg is hung at the other side from the centre of the ruler distance 45cm. find the mass required to balance the ruler.

PAPER 3 (SS 3)

SECTION A- OBJECTIVES

1. The volume of a gas at 27 °C and 800 mmHg is 76 cm³. Calculate its volume at s.t.p.

(a) 100.0 cm³ (b) 72.8 cm³. (c) 60.0 cm³ (d) 36.4 cm³

2.

The diagram above illustrates a waveform. Which of the points on the waveform are in phase?

(a) P and R (b) R and T (c) P and T (d) Q and S

3. Two straight current carrying conductors are placed near each other. Which of the following diagrams correctly illustrate the magnetic field pattern formed by the conductors?

4. Which of the following radiations has its frequency lower than that of infra-red radiation?

(a) Ultra-violet rays (b) Gamma rays (c) X-rays (d) Radio waves

5. A charge of 2.0x 10¯⁵ C experiences a force of 80 N in a uniform electric field, Calculate the magnitude of the electric field intensity.

(a) 8.0 x 10⁶NC¯¹ (b) 4.0 x 10⁶NC¯¹

(c) 4.0 x 10⁴NC¯¹ (d) 2.0 x 10⁴NC¯¹

6. Which of the following instruments is used to determine the accurate value of the electromotive force of a cell?

(a) Voltmeter (b)Meterbridge (c)Voltammeter (d) Potentiometer

7. Which of the following devices works on the principle of electromagnetic induction?

(a) Carbon microphone (b) Electric heater (c)Moving iron ammeter (d). Simple d.c motor

8. Which of the following types of thermometers is used for the calibration of other thermometers?

(a) Liquid-in-glass thermometer

(b) Constant volume gas thermometer

(c) Optical pyrometer

(d) Thermocouple

9. Which of the unit of the following physical quantities are derived? I. Area ii. Thrust iii. Pressure IV. Mass

(a) I, ii, iii and iv (b) i, ii, and iii only (c) i, ii and iv only (d) I and iii only

10. Which of the following is not a vector quantity (a) momentum (b) force (c) Velocity (d) Temperature

11. Which of the following is a derived unit? (a) Meter (b) Coulomb (c) Kilogram (d) Seconds

12. Which of the following instruments is suitable for making the most accurate measurement of the internal diameter of a test tube? (a) Meter rule (b) A pair of calipers(c) A micrometer screw gauge (d) A tape rule

13. Which of the following is a fundamental quantity? (a) Speed (b) Density (c) Length (d) Impulse

14. Which of the following is a scalar quantity (a) momentum (b) Acceleration(c) Displacement (d) Distance

15. An object falls freely from a height of 25m on to the roof of a building 5m high. Calculate the velocity with which the object strikes the roof (g=10m/s^2) (a)17m/s (b) 20.0m/s (c) 24.5m/s (d)125.0m/s

16. A barometer can be used to in determining i. Height of a mountain ii. Depth of a mine III. Dew point. Which of the following is/are correct? (a)I, ii and iii (b) ii and iii only (c) I and iii only (d) I and ii only

17. A body of mass 5kg falls from a height of 10m above the ground? What is the kinetic energy of the body just before it strikes the ground? (Take g as 10m/s^2) (a) 5J (b) 25J (c) 250J (d) 500J

18. Which of the following is not an example of Force? (a)Tension (b) Weight (c) Friction (d) Mass

19. Which of the following is a derived unit? (a)Ampere (b) Kilogram(c) Seconds (d) Ohm

20. Which of the following is a scalar quantity (a) Tension (b) Weight(c) Impulse (d) Distance

21. An object falls freely from a height of 25m on to the roof of a building 5m high. Calculate the velocity with which the object strikes the roof (g=10m/s^2) (a)17m/s(b)20.0m/s(c)24.5m/s(d)125.0m/s

22. Which of the following phenomena is a practical evidence for the existence of the continual motion of molecules? (a)Translational motion (b) Rotational motion (c) Brownian motion (d) Oscillatory motion

23. A body of mass 5kg falls from a height of 10m above the ground? What is the kinetic energy of the body just before it strikes the ground? (Take g as 10m/s^2) (a) 5J (b) 25J (c) 250J (d) 500J

24. Which of the unit of the following physical quantities are derived? i. Area ii. Thrust iii. Pressure IV. Mass (a)I,ii,iii and iv (b)i,ii,and iii only (c)i,ii and iv only (d) I and iii only

25. A block of wood of mass 5 kg is pulled on a platform by a force of 40 N as illustrated in the diagram above. If the frictional force, F experienced by the block is 12 N, calculate the magnitude of the acceleration of the block.

(a) 2.4 ms-2 (b) 5.6 ms-2 (c)8.0 ms-2 (d) 10.4 ms-2

26. Solid friction, like viscosity, is________ (a) Independent on the surface areas in contact. (b) independent of the relative motion between layers. (c) dependent on normal reaction. (d) in opposition to motion.

27. The slope of a linear distance-time graph represents.

(a) acceleration (b)displacement (c) speed (d) velocity.

28. A body of mass 2 kg is released from rest on a smooth plane inclined at an angle of 60° to the horizontal. Calculate the acceleration of the body down the plane. [g= 10 ms¯²]

(a) 3.1 ms-2 (b) 5.2 ms-2 (c) 6.0 ms-2 (d) 8.7 ms-2

29. Which of the following is not a vector quantity (a) momentum (b) force (c) Velocity (d) Temperature (e) none of the above

30. The total area under a force-velocity graph represents

(a) Energy (b)momentum (c) power (d) pressure.

Use the following information to answer questions 31 and 32.

31. A body of mass 20 g projected vertically upwards in vacuum returns to the point of projection after 1.2 s. [g = 10 ms¯²] Calculate the speed of projection.

(a) 0.6 ms-1 (b) 1.2 ms-1 (c) 6.0 ms-1 (d)12.0 ms-1

32. Determine the potential energy of the body at the maximum height of its motion.

(a) 0.36 J (b) 0.72 J (c) 360.00 J (d) 720.00 J

33. An object falls freely from a height of 25m on to the roof of a building 5m high. Calculate the velocity with which the object strikes the roof (g=10m/s^2) (a)17m/s (b)20.0m/s (c)24.5m/s(d)125.0m/s

34. Humidity is used to describe the amount of (a) air in water vapor (b)cloud available in the atmosphere (c) air in equal volume of cloud (d)water vapour in the atmosphere

35. A device that converts mechanical energy into electrical energy is (a) a dynamo (b) an electric motor (c) an induction coil (d) a transformer

36. Which of the following phenomena is a practical evidence for the existence of the continual motion of molecules?

(a)Translational motion (b) Rotational motion (c) Brownian motion (d) Oscillatory motion

37. Which of the following sources of energy is renewable? (a)Sun (b) petroleum (c) Coal (d) Uranium

38. Which of the following quantities has the same units as energy? (a)Power (b) Work (c) Force (d) Momentum

39. Which of the following substances is the most volatile at room temperature?(a) water (b) Diesel (c) Petrol (d) Kerosene

40. A bird flies at 10 for 3s, 15 for 3s and 20 for 4s. Calculate the bird’s average speed. (a) 4.5 (b) 15.0 (c) 15.5 (d) 51.7

SECTION B- THEORY

1. IF the mass of the earth, M of radius 6.4 m is 6.0 kg. calculate the force per unit mass on the earth’s surface (take G=6.7)

2. If the radius r of the earth is 6.4 m and the acceleration g due to gravity is 9.8 , calculate the escape velocity of a rocket from the earth’s gravitational field.

3. The force of gravitational field is 5.5N, where the gravitational constant is 6.67. When a mass of 0.55kg is placed, determine the force of gravity of the object.

4. Calculate the electrostatic force of attraction between two charges, if the distance apart is 5.0given that Q and q are 1.65c and 1.55c respectively (k = 9 m/F)

5. Find the force of electrostatic repulsion between two particles of equal charges of 1.6c if the distance between their R is 5.3 m {take }

6. Explain why X-rays can be used to produce photographs of fractures in bones.

(b) List four uses of X-rays other than in medicine

7. Two equal charges are placed in a vacuum 100m apart. If the force of attraction between them is 0.2N. Calculate the value of the two equal charges. [Take K= =9.0 M ]

(b) Calculate the electrostatic force of attraction between two charges, if the distance apart is 5.0m given that Q and q are 1.65 C and 1.55 respectively. [Take K= =9.0 M ]

8. Two capacitors of capacitances 5 and 3 are connected in series and the resulting combination is connected across 600v.

What is :

(i) the equivalent capacitance of the combination

(ii) the total charge on the combination?

9. Draw and label:

(a) a Leclanche cell

10. Name the poles and the electrolytes for the following:

(i) Dry Leclanche cell

(b) Calculate the potential at a point 40cm from a charge of 3 c {take}

FOR ANSWERS AND CLARIFICATIONS CONTACT THE EXAMINER