Download and practise with this ZIMSEC O-Level Physics Paper 1 November 2021 question paper. Useful for exam revision, past paper practice, and preparation in Zimbabwe.
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This is the ZIMSEC O-Level Physics question paper for Paper 1 from November 2021. Use it for exam practice under timed conditions. The paper code is 4023/1. Time allowed: 1 hour.
# ZIMBABWE SCHOOL EXAMINATIONS COUNCIL
General Certificate of Education Ordinary Level
**PHYSICS**
**PAPER 1 Multiple Choice**
**NOVEMBER 2021 SESSION**
1 hour
Additional materials:
Multiple Choice answer sheet
Soft clean eraser
Soft pencil (type B or HB is recommended.)
Electronic calculator
TIME 1 hour
### INSTRUCTIONS TO CANDIDATES
Do not open this booklet until you are told to do so.
Write your name, centre number and candidate number on the answer sheet in the spaces provided unless this has already been done for you.
There are forty questions in this paper. Answer all questions. For each question, there are four possible answers, A, B, C and D. Choose the one you consider correct and record your choice in soft pencil on the separate answer sheet.
Read very carefully the instructions on the answer sheet.
### INFORMATION FOR CANDIDATES
Each correct answer will score one mark. A mark will not be deducted for a wrong answer. Any rough working should be done in this booklet.
This question paper consists of 17 printed pages and 3 blank pages.
Copyright: Zimbabwe School Examinations Council, N2021.
## Question 1
What is the SI unit of length?
A centimetre
B metre
C kilometre
D millimetre
## Question 2
The diagram shows a micrometer screw gauge used to measure the diameter of a tungsten wire.
What is the diameter of the tungsten wire?
A 3.50 mm
B 3.80 mm
C 3.32 mm
D 3.82 mm
## Question 3
The diagram shows a tape from a ticker tape timer vibrating 50 dots per second.
What is the average speed of motion?
A \(0.32 \mathrm{~m} / \mathrm{s}\)
B \(0.33 \mathrm{~m} / \mathrm{s}\)
C \(2.00 \mathrm{~m} / \mathrm{s}\)
D \(3.00 \mathrm{~m} / \mathrm{s}\)
## Question 4
Which one is not true when a falling object speeds up?
A Air resistance increases.
B Acceleration of object is reduced.
C Acceleration of object is increased.
D Air resistance and weight of object are not equal.
## Question 5
An object of mass 0.20 kg moves with a uniform velocity of \(2 \mathrm{~m} / \mathrm{s}\). What is its momentum?
A \(0.04 \mathrm{kgm} / \mathrm{s}\)
B \(0.10 \mathrm{kgm} / \mathrm{s}\)
C \(0.40 \mathrm{kgm} / \mathrm{s}\)
D \(4.00 \mathrm{kgm} / \mathrm{s}\)
## Question 6
A longer spanner handle gives
A a smaller turning effect.
B a larger turning effect.
C less inertia.
D more inertia.
## Question 7
The diagram shows the velocity-time graph of a particle.
What is the total time taken by the particle whilst in motion?
A 70 s
B 60 s
C 35 s
D 45 s
## Question 8
Pressure is force per unit
A density.
B volume.
C mass.
D area.
## Question 9
Which quantity remains constant when an orange falls freely?
A displacement
B acceleration
C velocity
D speed
## Question 10
The diagrams show four different shaped toys, A, B, C and D, lying on the ground.
Which toy is most likely to topple when slightly displaced?
## Question 11
The diagram shows a crowbar being used to lift a load.
The velocity ratio is
A 0.2.
B 0.8.
C 1.3.
D 5.0.
## Question 12
Which one has the largest strength to mass ratio?
A H shaped beam
B triangular hollow beam
C rectangular hollow beam
D truss
## Question 13
Permanent joints in metals are achieved by using
A screws.
B hinges.
C rivets.
D bolts and nuts.
## Question 14
The Kariba Dam is
A an earth dam.
B a concrete dam.
C a straight dam.
D a gravity dam.
## Question 15
The diagram shows a baboon of mass 56 kg at the base of a gentle slope and a lost lamb of mass 10 kg at a distance of 100 m away. The baboon runs towards the lamb.
How much work does the baboon do to get to the lamb?
A 0.30 KJ
B 1.68 KJ
C 5.60 KJ
D 56 KJ
## Question 16
Which row is correct about the effect of impurities and pressure on the boiling point of water?
| | pressure | impurities |
| :--- | :--- | :--- |
| A | increases | increases |
| B | increases | decreases |
| C | decreases | increases |
| D | decreases | decreases |
## Question 17
The advantage of alcohol over mercury in a liquid in glass thermometer is that it
A does not wet the glass.
B is a better conductor of heat.
C does not vaporise.
D has a greater expansitivity.
## Question 18
Which physical property varies with temperature for a thermocouple thermometer?
A pressure
B volume
C voltage
D length
## Question 19
What is the approximate range of audible frequencies for a human with normal hearing?
A 1 Hz to 20 Hz
B 20 Hz to 20 KHz
C 20 KHz to 200 KHz
D 100 KHz to 20000 KHz
## Question 20
\(1000 \mathrm{~cm}^{3}\) of gas at \(20^{\circ} \mathrm{C}\) is heated to \(90^{\circ} \mathrm{C}\) at constant pressure. What is the new volume of the gas?
A \(222 \mathrm{~cm}^{3}\)
B \(807 \mathrm{~cm}^{3}\)
C \(4500 \mathrm{~cm}^{3}\)
D \(1239 \mathrm{~cm}^{3}\)
## Question 21
The convection currents in a heated fluid is due to parts of the fluid having different
A kinetic energies.
B pressures.
C densities.
D masses.
## Question 22
The diagram shows a graph of the variation of pressure with distance at an instant along a sound wave.
Which point, A, B, C or D, represents a rarefaction? …