Danho
ZIMSEC A Level · 6032/1 · N2023

Physics Paper 1 November 2023

Questions
38 of 40
Time allowed
60 min
Syllabus code
6032/1

We hold fewer questions than the paper printed. The rest are not in the bank yet.

Sit this paper online

Questions
38
Pass mark
23
Sit this paper

Answer every question in the printed order, get marked at the end, then see the answers.

The questions

Question 1

units and measurements
Which one has the greatest in magnitude?
  1. A2 pN
  2. B2 nN
  3. C2 mN
  4. D2 μN

Question 2

units and measurements
The base unit for the gravitational constant G is
  1. Am³kg⁻¹s⁻².
  2. Bkgm³s⁻³.
  3. CNm⁻²kg⁻².
  4. Dm²kg⁻².

Question 3

measurement errors
A student uses an analogue voltmeter which does not read zero when the switch is open and has a mirror below the pointer. The results obtained are
  1. Aprecise but not accurate.
  2. Bprecise and accurate.
  3. Caccurate but not precise.
  4. Dnot accurate and not precise.

Question 4

kinematics
The graph represents the motion of a falling object: y rises steeply from the origin then curves over and flattens to a plateau as t increases. What does y represent?
  1. Adistance when air resistance is not negligible
  2. Bacceleration when air resistance is negligible
  3. Cspeed when air resistance is not negligible
  4. Ddisplacement when air resistance is negligible

Question 5

kinematics
The diagram shows a velocity-time graph for a moving object: velocity ramps up linearly, stays constant for a time, then ramps back down linearly to zero. Which one is the corresponding graph of displacement, s, against time, t?
  1. AA
  2. BB
  3. CC
  4. DD

Question 6

equilibrium of forces
An information board in a supermarket is suspended in equilibrium by two light strings attached to the wall and the ceiling as shown: a string of tension 50 N runs from the junction up to the ceiling, a horizontal string of tension 30 N runs from the junction to the wall, and a weight hangs from the junction by a vertical string of tension T.
  1. A100.0 N.
  2. B60.0 N.
  3. C57.7 N.
  4. D40.0 N.

Question 7

fluids
A ball bearing of weight, W, is moving in a fluid with upthrust, U, and drag force, F. Which expression is correct when the ball bearing attains equilibrium?
  1. AW + F + U = 0
  2. BF = U + W
  3. CW = U + F
  4. DU = W + F

Question 8

circular motion
The diagram shows a tennis ball rolling with velocity, v, in a curved path of radius, r, looping up from the ground to a point A at the top of a vertical circular loop of radius r. The minimum velocity at A is given by
  1. A√(2gr).
  2. B√(gr).
  3. C2√(gr).
  4. D√(2gr)/2.

Question 9

energy conservation
Neglecting air resistance, which statement is correct for a mass projected vertically upwards?
  1. AThe kinetic energy of the mass is maximum at the maximum height.
  2. BThe total energy of the mass is constant throughout the motion.
  3. CThe potential energy of the mass increases uniformly with time during ascent.
  4. DThe momentum of the mass is constant throughout the motion.

Question 10

circular motion
The minute hand of a clock is 3.0 cm long. What is the mean angular speed of the minute hand?
  1. A2.9 × 10⁻⁵ rad s⁻¹
  2. B7.0 × 10⁻³ rad s⁻¹
  3. C1.7 × 10⁻³ rad s⁻¹
  4. D3.0 × 10⁻¹ rad s⁻¹

Question 11

gravitation
A satellite of weight, W, on the earth's surface of radius, R, is placed in a circular orbit at a height 4R above the earth's surface. What is the gravitational force acting on the satellite in the orbit?
  1. AW/4
  2. BW/5
  3. CW/16
  4. DW/25

Question 12

simple harmonic motion
A particle in simple harmonic motion can be described by: 1. velocity of the particle. 2. restoring force on the particle. 3. acceleration of the particle. Which of these quantities are in phase for a particle in simple harmonic motion?
  1. A1 and 2.
  2. B1 and 3.
  3. C1, 2 and 3.
  4. D2 and 3.

Question 14

waves
What is the frequency of a sound wave travelling with velocity 2.0 km s⁻¹ in a liquid such that the shortest distance between a compression and a rarefaction is 0.5 mm?
  1. A0.2 MHz
  2. B2.0 MHz
  3. C4.0 MHz
  4. D8.0 MHz

Question 15

optics
The diagram shows a piece of an optical fibre with a light ray entering at A, reflecting off the core-cladding boundary, and exiting at C. Which statement is correct?
  1. ACladding has a larger refraction index than the core.
  2. BThe core has a larger refractive index than cladding.
  3. CThe refractive indices are the same.
  4. DCladding reflects light more than the core.

Question 16

waves
Which statement is not correct about a stationary wave?
  1. ANo energy is transferred along the direction of propagation.
  2. BPoints between two successive nodes have different amplitude.
  3. CParticles at nodes have the largest amplitude.
  4. DAll points between two successive nodes vibrate in phase.

Question 17

electricity
The potential difference between two points on a current carrying conductor is the
  1. Aforce required by a unit positive charge between the points.
  2. Bratio of the energy dissipated between the points to the current.
  3. Cthe ratio of the power dissipated between the points to the charge moved.
  4. Dratio of the power dissipated between the points to the current.

Question 18

capacitors
What is the effective capacitance between P and Q? A 3.2 μF capacitor connects P to a node; from that node, two branches of 3.2 μF each run in parallel to a second node, which connects to Q.
  1. A1.6 μF
  2. B2.1 μF
  3. C3.4 μF
  4. D4.8 μF

Question 19

magnetic fields
Which diagram correctly describes the flux patterns due to a current carrying circular coil? Each option shows the same coil, viewed so it crosses a cutting plane at two points, with nested field-line circles around each crossing and a large external loop above and below the plane; the arrows on the circles and the outer loop differ between options.
  1. AA
  2. BB
  3. CC
  4. DD

Question 20

electromagnetism
The purpose of laminating the core of a transformer is to
  1. Aimprove the flux linkage between the primary and secondary coils.
  2. Breduce the effects of eddy currents.
  3. Cproduce a uniform radial field in the two coils.
  4. Ddissipate the heat generated by the two coils.

Question 21

electromagnetic induction
The diagram shows a bar magnet passing through a solenoid with a uniform velocity, with a centre-zero galvanometer connected across the solenoid. Which graph represents the variation of current, I, in the solenoid with time, t?
  1. AA
  2. BB
  3. CC
  4. DD

Question 22

transformers
What is the effect on the current in the secondary coil of doubling the number of turns in the primary coil?
  1. Ahalved
  2. Bdoubled
  3. Csquared
  4. Dremains the same

Question 23

alternating current
Which equation represents a sinusoidal current I = I0 sin(ωt) with double the frequency only?
  1. A2I = I0 sin(2ωt)
  2. BI = 2I0 sin(ωt)
  3. CI = I0 sin(2ωt)
  4. DI = 2I0 sin(2ωt)

Question 24

alternating current
An alternating p.d. is connected to a resistor and the frequency of the supply is varied, keeping r.m.s. voltage constant. The mean rate of dissipation of heat in the resistor is
  1. Aproportional to frequency.
  2. Bindependent of frequency.
  3. Cproportional to (frequency)².
  4. Dinversely proportional to frequency.

Question 25

electronic systems
The diagram shows the relationship between components of an electronic system: Input transducer -> Processing unit -> Output transducer. The function of the processing unit is to compare signals of
  1. Ainput and output transducer with a predefined criteria.
  2. Ban input transducer with a predefined criteria.
  3. Can output transducer with a predefined criteria.
  4. Da predefined output transducer.

Question 26

states of matter
Which one is not a molecular model characteristic of a solid?
  1. Afixed mass
  2. Bfixed volume
  3. Cfixed shape
  4. Dfixed pattern

Question 27

fluids
Which graph shows the variation of pressure, P, with height, h, when an inflated balloon falls freely, where P0 is atmospheric pressure?
  1. AA
  2. BB
  3. CC
  4. DD

Question 28

materials
During plastic deformation of a ductile material
  1. AHooke's law is obeyed.
  2. Belastic limit is at breaking point.
  3. Cshape and size are retained.
  4. Dfailure is after yielding point.

Question 29

materials
Area under a stress-strain graph gives energy stored per unit
  1. Aarea.
  2. Bvolume.
  3. Cdensity.
  4. Dlength.

Question 30

thermal physics
What thermodynamic temperature is equivalent to 50.85 °C?
  1. A222.15 K
  2. B222.30 K
  3. C323.85 K
  4. D324.00 K

Question 32

kinetic theory
The root mean square value of the speed of molecules of an ideal gas signifies
  1. Amean speed of the molecules.
  2. Bspeed of molecules.
  3. Caverage speed of each molecule.
  4. Dsquare root of speed of each molecule.

Question 33

fluid dynamics
Which characteristic is not correct for a non viscous fluid flow?
  1. ANo change of internal energy.
  2. BVelocity is uniform on any cross-section.
  3. CWork is done against viscous forces.
  4. DPressure over any cross section is the same.

Question 34

electric and magnetic fields
A uniform electric field, E, and a uniform magnetic field, B, are made perpendicular to each other so that they produce deflections in opposite directions. Particles move into the fields as shown, with three possible exit paths labelled 1 (deflected towards E), 2 (straight through) and 3 (deflected towards B). Which path(s) have particles with a velocity v = E/B?
  1. A1
  2. B2
  3. C3
  4. D1, 2 and 3

Question 35

atomic physics
A thin gold leaf was bombarded with alpha particles in an experiment to determine the nature of an atom. Which one was not observed during the experiment?
  1. AMost of the alpha particles were deflected through large angles.
  2. BMost of the alpha particles were deflected through small angles.
  3. CFew of the alpha particles were deflected through angles of more than 90 degrees.
  4. DSome alpha particles were not deflected.

Question 36

quantum physics
Which graph shows the variation of the de Broglie wavelength, λ, with momentum p?
  1. AA
  2. BB
  3. CC
  4. DD

Question 37

radioactivity
Radium-226 has a half life of 1600 years and a decay constant of 1.37 × 10⁻¹¹ s⁻¹. What is the activity of 1 gram of a sample of Radium containing 2.66 × 10²¹ particles?
  1. A5.15 × 10⁻³³ Bq
  2. B2.10 × 10⁻⁸ Bq
  3. C1.94 × 10¹⁰ Bq
  4. D3.60 × 10¹⁰ Bq

Question 38

communications
What is input power to a cable of length of 20 km with an attenuation per unit length of 2 dB km⁻¹ and 5 × 10⁻⁶ W output power?
  1. A5 × 10⁻² W
  2. B5 × 10⁻⁴ W
  3. C8 × 10⁻⁶ W
  4. D2.5 × 10⁻⁶ W

Question 39

communications
The diagram shows a cable of length 40 km which has an attenuation of 2 dB km⁻¹. Repeater amplifiers with a gain of 30 dB are placed every 10 km along its length (three amplifiers). What is the overall gain or loss in the system?
  1. A+120 dB
  2. B+80 dB
  3. C+40 dB
  4. D+10 dB

Question 40

communications
Which statement correctly describes frequency modulation?
  1. AFrequency of the carrier wave is made to vary in synchrone with the displacement of the information signal.
  2. BFrequency of the carrier wave is made to vary in synchrone with the displacement and amplitude.
  3. CFrequency of the carrier wave varies proportionally with displacement and amplitude.
  4. DFrequency of carrier wave varies inversely with displacement and amplitude.

More sittings of this paper

The answers, and why they are the answers

Sit the paper here to see which ones you got right. Danho explains every question, keeps your score, and works without a connection.

Get it on Google PlayDownload on the App Store