ZIMBABWE SCHOOL EXAMINATIONS COUNCIL <br> General Certificate of Education Ordinary Level
**PHYSICS**
PAPER 1 Multiple Choice
**SPECIMEN PAPER**
Additional materials: Multiple Choice answer sheet Soft clean eraser Soft pencil (type B or HB is recommended.) Electronic calculator
INSTRUCTIONS TO CANDIDATES
Answer all questions. For each question, there are four possible answers, \(\mathbf{A}, \mathbf{B}, \mathbf{C}\) and \(\mathbf{D}\). Choose the correct answer. Record your choice in soft pencil on the separate answer sheet.
Read very carefully the instructions on the answer sheet.
INFORMATION FOR CANDIDATES
There are forty questions in this paper. Each correct answer will score one mark. Any rough working should be done on this question paper.
Question 1
Which one is the SI unit of temperature?
A \(\quad{ }^{\circ} \mathrm{C}\)
B \(\quad{ }^{\circ} \mathrm{K}\)
C \(\quad \mathrm{K}\)
D C
Question 2
The diagram shows two forces that are perpendicular to each other.
What is the magnitude of the resultant force?
A \(\quad 2 \mathrm{~N}\)
B \(\quad 10 \mathrm{~N}\)
C \(\quad 14 \mathrm{~N}\)
D \(\quad 48 \mathrm{~N}\)
Question 3
The diagram shows a velocity-time graph of an athlete competing in a race.
At which point is the acceleration greatest?
Question 4
Terminal velocity of an object is the velocity
A of a falling object when the acceleration is zero.
B of a falling object when acceleration is increasing.
C when the upward force is greater than the downward force.
D when the downward force is greater than the upward force.
Question 5
A parachutist demonstrating some skills at the national independence celebrations jumps off a helicopter. The acceleration of the parachutist
A is decreasing uniformly.
B is increasing uniformly.
C remains constant.
D is decreasing non-uniformly.
Question 6
How do air pressure patterns help to predict weather?
A High pressure always indicate rain.
B Low pressure indicates clear skies.
C Changes in pressure can indicate approaching weather systems.
D Pressure patterns have no relation to weather.
Question 7
It is better to use a long spanner rather than a short one to tighten a bolt because
A a longer spanner reduces the friction between the bolt and the nut.
B a longer spanner produces more torque with the same force.
C a longer spanner increases the pressure applied directly on the bolt head.
D a longer spanner makes the bolt thread stronger.
Question 8
A dancer of mass 60 kg jumps and lands on the floor with a velocity of \(5 \mathrm{~m} / \mathrm{s}\). What is the dancer's momentum just before landing?
A \(\quad 300 \mathrm{kgms}^{-1}\)
B \(\quad 65 \mathrm{kgms}^{-1}\)
C \(\quad 12 \mathrm{kgms}^{-1}\)
D \(\quad 0.08 \mathrm{kgms}^{-1}\)
Question 9
When an ox-drawn cart accelerates up a hill
A it gains both kinetic energy and potential energy.
B it gains kinetic energy but loses potential energy.
C it gains potential energy but loses kinetic energy.
D both kinetic energy and potential energy decrease.
Question 10
A bucket of maize seed of mass 20000 g is raised through a vertical height of 10 m . What is the work done?
A 20 J
B 200 J
C 2000 J
D 20000 J
Question 11
Machines are lubricated in industry in order to
A increase energy gained.
B increase efficiency.
C increase velocity ratio.
D reduce mechanical advantage.
Question 12
The mechanical advantage of a single moveable pulley is
A 1 .
B 2 .
C 3 .
D 4 .
Question 13
Which joining method is most appropriate to join plastic to plastic materials?
A gluing
B nailing
C brazing
D soldering
Question 14
What shape is most commonly used in trusses for stability?
A square
B circle
C rectangle
D triangle
Question 15
The diagrams show a bimetallic strip when it is at room temperature and after it has been heated during use.
The change in shape occurs because
A brass expands more than iron.
B iron expands more than brass.
C both expand at the same rate.
D neither brass nor iron expands.
Question 16
In a vacuum flask both walls are silvered in order to
A reduce heat gain by conduction only.
B reduce heat gain or heat loss by radiation.
C reduce heat gain or heat loss by convection.
D reduce heat gain or heat loss by conduction and convection.
Question 17
Which graph illustrates Boyle's Law?
B
C
D
Question 18
Modern car manufacturers prefer engines with multiple cylinders. Which statement is not true about the use of multiple cylinders?
A They have more power strokes per revolution.
B They increase the car's acceleration.
C They facilitate the function of computers in the car.
D They reduce the vibration of the car.
Question 19
The efficiency of a car engine can be measured by the
A car's speed.
B sound produced.
C smoke produced.
D fuel economy.
Question 20
The diagram shows how displacement varies with time for a wave passing through a point.
What is the frequency of the wave?
A \(\quad 0.25 \mathrm{~Hz}\)
B \(\quad 0.50 \mathrm{~Hz}\)
C \(\quad 1.00 \mathrm{~Hz}\)
D 2.00 Hz
Question 21
A sound wave is emitted downwards from a ship to a seabed a distance, \(d\). Which expression can be used to find the speed of sound in seawater if the time taken for the echo to be detected at the ship is \(t\) ?
A \(\frac{d}{t}\)
B \(d \times t\)
C \(\frac{t}{d}\)
D \(\frac{2 d}{t}\)
Question 22
A student observes that a swimming pool appears shallower than its actual depth. Which phenomenon is responsible for this effect?
A dispersion of light
B refraction of light
C reflection of light
D convergence of light
Question 23
The correct formula used to calculate electrical power is
A \(\quad \mathrm{P}=\) VI .
B \(\quad P=\frac{V}{I}\).
C \(\quad \mathrm{P}=\mathrm{VI} t\).
D \(\quad \mathrm{P}=\mathrm{I}^{2} \mathrm{Rt}\).
Question 24
The diagram shows a combination of resistors.
What is the effective resistance between A and B ?
A \(\quad 1.33 \Omega\)
B \(2.00 \Omega\)
C \(\quad 3.33 \Omega\)
D \(\quad 8.00 \Omega\)
Question 25
How long would it take for a charge of 10 C to flow through a cellphone, when there is a current of 2 A ?
A \(\quad 20.0 \mathrm{~s}\)
B \(\quad 12.0 \mathrm{~s}\)
C \(\quad 5.0 \mathrm{~s}\)
D \(\quad 0.2 \mathrm{~s}\)
Question 26
What is the resistance of a lamp when the voltage across it is 12 V and the current flowing through it is 4 A ?
A \(\quad 48.0 \Omega\)
B \(\quad 16.0 \Omega\)
C \(\quad 3.0 \Omega\)
D \(0.3 \Omega\)
Question 27
In mining communities, magnets were sometimes used to separate iron-rich ores from the soil.
Which material is most strongly attracted to a magnet?
A copper
B aluminium