Item 5 refers to the following diagram which shows the section of a thermometer. Mercury 100 90 80
5.
What is the reading shown?
- (A)
88°
- (B)
89°
- (C)
91°
- (D)
92°
Free CXC Physics Paper 1 January 2013 past paper from 2013. Includes a worked answer key. Open the PDF, take a timed test, and study with AI on Caribbean AI.
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CSEC Physics Paper 1 January 2013 - Free CXC Past Paper with Answers
Free CXC Physics Paper 1 January 2013 past paper from 2013. Includes a worked answer key. Open the PDF, take a timed test, and study with AI on Caribbean AI.
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A physical quantity which is NOT one of the fundamental quantities is
mass
time
current
density
0.0000357 N expressed in standard form is
3.57 x10 N
3.75 x 10 N
3.75 x 10 N
3.75 x 10 N
The period of a simple pendulum is MOST affected by the
length of the string
amplitude of the oscillation
mass of the bob
force used to start it
Which of the following is suitable for measuring the diameter of a human hair?
Tape measure
Vernier caliper
Micrometer screw gauge
Metre rule
Item 5 refers to the following diagram which shows the section of a thermometer. Mercury 100 90 80
What is the reading shown?
88°
89°
91°
92°
Item 6 refers to the graph below which shows a relationship represented by the straight line passing through QT. y P S T Q R x
For this relationship, when x = 0, the value of y is
Q
S
P
R
Item 7 refers to the diagram below. I 10.2 cm 10 cm 100 g pivot at centre metre rule
The diagram above represents a 100 g mass which can be balanced by placing a mass at I. If the mass at I is to be used to balance the 100 g, it should be
less than 100 g
100 g
a little greater than 100 g
about 200 g
It is NOT true that the moment of a force is
measured in units called newton metres
the amount of force needed to keep a body turning
the turning effect that a force has when it acts on a body
the product of the force and the perpendicular distance of its line of action from a point
In an experiment to locate the centre of mass of a sheet of cardboard, a plumb line (string with a small mass on the end) is used. The plumb line is used to
check that the apparatus is vertical
check that the cardboard is swinging freely
show which points are vertically below the pivot.
measure the width of the cardboard :
Which of the following is a vector physical quantity?
Speed
Energy
Mass
Displacement
Item 11 refers to the following diagram which shows a velocity/time graph for a moving object.
Which of the following statements about the object is/are true? I. It returns to its starting point. II. It has zero acceleration between times t, and t,. III. Its velocity at t, is the same as its initial velocity.
I and II only
I and III only
II and III only
I, II and III
Two smooth spheres, A and B, collide head on. Which of the following statements is/are true?
I. The momentum of A is the same after collision as it was before. II. The momentum of B is the same after collision as it was before. III. The total momentum of A and B is the same after collision as it was before.
I only
III only
II and III only
I, II and III
Which of the following is NOT a vector quantity?
Displacement
Density
Acceleration
Momentum
Which of the following are renewable sources of energy?
I. Solar energy II. Wind energy III. Geothermal energy
I and II only
I and III only
II and III only
I, II and III
An ice cube sinks in liquid A but floats in liquid B. Which of the following statements is true?
The upthrust is less in A than in B.
The upthrust is greater in A than in B.
The weight of the ice is less in A than in B.
The weight of the ice is greater in A than in B.
A piece of string is tied onto a small stone and the stone is then suspended, totally immersed, in water. The tension in the string will be
zero
equal to the weight of the stone
less than the weight of the stone
more than the weight of the stone
Item 17 refers to the following diagram of a dam.
The diagram above shows a dam. The pressure on the dam at the bottom of the reservoir depends on the
depth of the water
volume of water held by the dam
mass of water held back by the dam
length of the reservoir
Which of the following tools is/are designed to take advantage of a large moment provided by a relatively small force?
I. Claw hammer II. Crowbar III. Pair of tweezers IV. Pair of wire cutters
III only
I and IV only
I, II and III only
I, II and IV only
The temperature on a warm day in the Caribbean is about
32 K
240 K
273 K
305 K
Which of the following is MOST likely to account for the fact that pot handles are usually made of wood or plastic?
Conduction
Convection
Radiation
Evaporation
Some molten naphthalene at 100 °C is allowed to cool down to room temperature. If naphthalene has a melting point of 80 °C, which of the following graphs BEST represents the cooling curve?
Which of the following does NOT describe a process which is an example of evaporation?
A slice of bread left in the open air becomes dry.
The cooling effect of sweating in animals.
The rapid disappearance of ether if exposed to the air.
A loaded copper wire put around a block of ice gradually cuts through the ice.
Item 23 refers to the following diagrams which show how the pressure, the volume and the temperature of a fixed mass of dry gas, are inter-related. Pressure A Pressure A Volume 0 0 0 Volume 0 0 I Celsius temperature II 0 Celsius temperature III
Which of the graphs can be used to establish the kelvin temperature scale?
II only
I and II only
II and III only
I, II and III
The specific latent heat of vapourization of water is the energy required to change 1 kg of water at
0 °C to steam at 100 °C
0 °C to ice at 0 °C
99.9 °C to steam at 100.1 °C
100 °C to steam at 100 °C
An electric kettle full of water is plugged into the mains. The process by which heat travels through the water is
electrification
convection
evaporation
radiation
A detector of thermal energy is placed an equal distance in turn from each of four faces of a hollow metal cube full of water. The reading on the detector is GREATEST when the detector is turned towards the face which is
painted silver
painted dull black
painted shiny white
highly polished
Which of the following waves travel only longitudinally? I. Sound waves II. Radio waves III. Water waves
I only
II only
II and III only
I. II and III
The amplitude of the wave is the distance
OX
OZ
TV
TX
Which of the following diagrams could represent diffraction of water waves in a ripple tank?
I only
II only
I and II only
II and III only
In which medium would the light waves have the SLOWEST speed?
Air
Ice
Perspex
Diamond
Young's double slit experiment demonstrates that light
has a particle nature
is a wave motion
travels in a straight line
produces sharp images
From the information given, the frequency is
Hz
10 Hz
20 Hz
unknown
If a converging lens is used as a magnifying glass, the image formed is
real, inverted, diminished
real, erect, diminished
virtual, inverted, magnified
virtual, erect, magnified
Which row in the table below correctly compares X rays and visible light?
Particles / Waves
High frequency / Low frequency
Long wavelength / Short wavelength
Carry less energy / Carry more energy
Which of the following diagrams MOST clearly shows the path of a ray of light when it strikes a plane mirror?
Which of the following diagrams BEST represents the passage of a beam of white light through a triangular glass prism?
Item 38 refers to the diagram below. 2 F F Principal focus Optical centre
With reference to the diagram above, a real image is produced with a converging lens when the object is located
between the optical centre and F
between F and infinity
at F only
at 2F only
Item 39 refers to the graphs below which represent two alternating currents.
Which of the following combinations correctly identifies these currents?
I / II
II / Neither
Neither / I
I / Neither
Which of the following statements about insulators is/are true? I. In an insulator all electrons are bound firmly to their atoms. II. In an insulator many electrons can move freely from atom to atom. III. An insulator cannot be charged by rubbing. IV. A good insulator retains the charge better than a conductor.
I only
I and II only
II and III only
II and IV
The current in a wire is one ampere if a charge of
10 coulombs flows through it in 10 seconds
1 coulomb flows through it in 1 second
10 coulombs flow through it in 1 second
100 coulombs flows through it in 10 seconds
Which of the graphs above represent(s) direct current?
II only
III only
I and III only
I, II and III
Which of the following statements about alternating current is true?
It can be changed into direct current by a transformer.
It can be rectified by using a semiconductor diode.
It can be used to recharge a battery.
It is used to transmit electrical energy because of its high frequency.
In the parallel circuit shown above, ALL of the current, I, supplied by the battery
goes through each of the resistors
goes through the largest resistor only
goes through the smallest resistor only
equals the sum of the currents in the two resistors
Which of the following relationships gives a correct value for the combined resistance R of resistors R1, R2, and R3 connected in parallel?
I
I and II only
I and III only
II and III only
I, II and III
The diagram above shows a typical relay. The part, labelled P, must be made of
brass
iron
plastic
copper
Which of the following formulae (in which the symbols have their usual meaning) is a mathematical expression of Ohm's Law?
Rectification can BEST be done by using a
transformer
capacitor
transistor
diode
Magnetic induction occurs when
a N pole attracts a S pole
iron nails near a magnet become magnetized
a magnet is suspended and points in the N S direction
an electroscope is charged
The direction of a magnetic field is the direction in which
the S pole of a magnet points when placed in it
the N pole of a magnet points when placed in it
a positive charge moves when placed in it
a negative charge moves when placed in it
In which of the following devices is a commutator used?
Transformers
A C generators
D C motors
Moving coil microphones
Item 53 refers to the following circuit diagrams.
A simple experiment was conducted using the circuit diagrams shown above. The same components were used and the bulb was lit to normal brightness in each case.
Which of the following components would be defective?
I. The bulb II. The battery III. The diode
I only
III only
I and II only
II and III only
No radioactive nuclei are present in a sample at time t = 0.
Which of the following graphs BEST represents the variation with time of the number, N, of undecayed nuclei present?
Which of the following actions is NOT one of the ways in which the strength of the magnetic field near a solenoid (long coil) carrying a current can be increased?
Increasing the resistance of the coil
Increasing the current in the coil
Increasing the number of turns per unit length of the coil
Placing a soft iron core inside the coil
Isotopes of an element differ from each other in that they have a different
number of electrons
number of protons
number of neutrons
atomic number
Gamma rays may be stopped by
a sheet of paper
a few millimetres of aluminium
a few centimetres of aluminium
several centimetres of lead
Which of the following are definitions of the term 'half-life' of radioactive nuclide? I. The time taken for the activity of any given sample to fall to half its original value. II. The time taken for half the nuclei present in any given sample to decay. III. Half the average number of disintegrations per second.
I and II only
I and III only
II and III only
I, II and III
Which of the following pairs of terms describes two properties of an α-particle?
No charge, very penetrating
Positive charge, very penetrating
Positive charge, not very penetrating
Negative charge, not very penetrating
In the equation
= speed of light, = mass of atom
= speed of light, = change in mass
= specific heat capacity of substance, =change in mass
=specific heat capacity of substance, = mass of substance