Free CXC Physics Paper 1 May/June 2019 past paper from 2019. 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 May/June 2019 - Free CXC Past Paper with Answers
Free CXC Physics Paper 1 May/June 2019 past paper from 2019. Includes a worked answer key. Open the PDF, take a timed test, and study with AI on Caribbean AI.
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Every question from this paper as text. See the answers and worked solutions. Questions are the property of the Caribbean Examinations Council; Caribbean AI is not affiliated with CXC.
3.1415926 expressed as TWO significant figures is
3.1
3.14
3.2
31
To measure the external diameter of a measuring cylinder most accurately, one should use a
metre rule
tape measure
length of string
pair of vernier calipers
A 4 kg mass is travelling with a constant speed of 5 m s⁻¹. It is brought to rest in 2 seconds. The average force acting on it to bring it to rest is
1.6 N
2.5 N
10.0 N
40.0 N
Item 4 refers to the following diagram which shows two forces, X and Y, applied onto an object.
What should be the magnitude and direction of a third force which will cause the object to remain stationary?
X - Y to the left
X + Y to the left
X - Y to the right
X + Y to the right
A boy measured the height of a laboratory table with a metre rule. Which of the following is MOST likely to be correct?
0.00895 m
0.0895 m
0.895 m
8.95 m
The diagrams below, NOT drawn to scale, represent two forces, S and T, acting at O. In which of the following is the resultant in the direction OX?
Diagram A
Diagram B
Diagram C
Diagram D
When an astronaut is standing on the moon his mass is 70 kg. When he returns to earth his approximate weight will be
70 kg
420 kg
70 N
700 N
Which of the following rates will determine the power of a machine?
I. Doing work II. Converting energy III. Changing temperature
I only
III only
I and II only
I, II and III
Which of the following features must be present in a stable, well-designed racing car?
Sunroof
Long front
Narrow wheelbase
Low centre of gravity
The time period of a simple pendulum oscillating with a small amplitude depends on the
mass of the pendulum bob
amplitude of the oscillation
length of the pendulum
force with which the pendulum is set into motion
Which of the following sets of units will result in the SI unit of pressure?
g cm³ / m s⁻² / mm
kg m⁻³ / N kg⁻¹ / m
g cm⁻³ / N kg⁻¹ / m
kg m⁻³ / cm s⁻² / cm
Which of the following is the unit of momentum?
kg s⁻¹
kg m s⁻¹
kg m s⁻²
N m
Which of the following quantities has the same value as 6 µC?
6 × 10⁶ C
6 × 10³ C
6 × 10⁻³ C
6 × 10⁻⁶ C
Which of the following is an SI base unit?
Volt
Ohm
Ampere
Coulomb
Item 15 refers to the following graph which shows how the displacement of a runner from a starting line varies with time.
Displacement/m 24 12 0 50 100 Time/s
From the graph it can be deducted that the runner is
going slower and slower
going at a steady speed
going faster and faster
not moving
An object is removed from the ground and placed on a shelf. Which of its properties is expected to increase?
Mass
Volume
Potential energy
Kinetic energy
Which of the following is the POOREST conductor of thermal energy?
Air
Copper
Mercury
Aluminium
Boyle’s law for a gas can be tested experimentally, provided which of the following remain constant? I. Temperature II. Pressure III. Mass
I and II only
I and III only
II and III only
I, II and III
Which of the following are characteristic features of a clinical thermometer? I. Narrow constriction in the tube just above the bulb II. Limited range of temperatures III. Large bore to make the mercury more visible
I and II only
I and III only
II and III only
I, II and III
A metal of mass m requires energy, E, to raise its temperature from to . The specific heat capacity of the metal will be given by
The specific latent heat of vaporization of water is . When of water is converted into steam it
absorbs
gives out
A gas occupies at at a pressure of atmosphere. At a pressure of atmospheres it occupies a volume of . What is its temperature at this new volume and pressure?
Which of the following statements concerning the radiation of heat is/are true?
I. Radiation can only take place in a material medium. II. A good absorber is also a good emitter of radiation. III. Dark dull surfaces are better emitters than shiny ones.
III only
I and II only
I and III only
II and III only
Which of the following quantities remain unchanged with an INCREASE in temperature?
Mass
Density
Volume
Relative density
Some molten naphthalene at is allowed to cool to room temperature. If naphthalene has a melting point of , which of the following graphs BEST represents the cooling curve?
Graph A
Graph B
Graph C
Graph D
An electric kettle full of water is plugged into the mains. The MAJOR process by which heat travels through the water is
radiation
convection
conduction
electrification
In using a slinky to demonstrate longitudinal waves moving from Point A to Point B above, the spring is made to vibrate
parallel to AB
perpendicular to AB
at an obtuse angle to AB
at an acute angle to AB
In which of the following is conduction the MAIN method of energy transfer?
Food heated in a microwave oven
Energy transferred from the sun to earth
Food being cooked on a barbecue
Food being cooked in a pot on an electric stove
Which of the following statements does NOT provide evidence that sound waves can be reflected?
Sound can be heard around a corner in open air.
Speaking tubes can be used for passing messages in ships.
The depth of the ocean can be measured using ultrasound.
Echoes can be heard when a person shouts in a large empty room.
Which of the following statements is the reason for this occurrence?
Water is a poor conductor of heat.
Gauze is a poor conductor of heat.
Water is a good conductor of heat.
Glass is a good conductor of heat.
Whenever there is complete destructive interference between two coherent wave trains, the waves must be
in phase
out of phase by half of a wavelength
out of phase by one wavelength
out of phase by a quarter of a wavelength
Item 32 refers to the following diagram of a wave. Direction of propagation S Displacement R P Distance from origin T
Which of the following statements about the wave shown in the diagram are true? I. Points P, Q and R are in phase. II. Points S and T are out of phase. III. The wavelength of the wave is the distance PR.
I and II only
I and III only
II and III only
I, II and III
An echo is quieter than the original sound that produced it. This shows that, compared to the original sound, the echo has a
smaller amplitude
shorter wavelength
lower frequency
slower speed
Which of the following can produce a diminished virtual image of a real object?
A converging lens
A diverging lens
A plane mirror
A glass block
An object O is viewed in a plane mirror PQ. Which of the following diagrams correctly shows the formation of the image?
Diagram A
Diagram B
Diagram C
Diagram D
Which of the following diagrams BEST represents the wave generated in a ripple tank by a small spherical dipper vibrating at a constant frequency?
Diagram (A)
Diagram (B)
Diagram (C)
Diagram (D)
Which of the following statements about waves is true?
Only transverse waves undergo reflection.
Diffraction can only take place with light waves.
All waves undergo reflection, refraction and diffraction.
Longitudinal waves do not undergo refraction, but may be reflected.
A ray of white light enters a transparent glass prism. In which of the following diagrams is the dispersion of light correctly illustrated?
Diagram showing dispersion with ROYGBIV order.
Diagram showing dispersion with ROYGBIV order.
Diagram showing dispersion with VIBGYOR order.
Diagram showing dispersion with VIBGYOR order.
Which of the following diagrams represents the magnetic field which exists between two opposite magnetic poles?
Diagram showing magnetic field lines between N and S poles, diverging from N and converging to S.
Diagram showing magnetic field lines between N and S poles, forming closed loops.
Diagram showing magnetic field lines between N and S poles, forming closed loops.
Diagram showing magnetic field lines between N and S poles, diverging from N and converging to S.
Which of the following diagrams is a graphical representation of current versus potential difference for a metallic conductor at a constant temperature?
Diagram (A)
Diagram (B)
Diagram (C)
Diagram (D)
Item 41 refers to the following diagram. Primary coil X W Secondary coil
Appropriate labels for W and X are
W: step-down transformer X: a.c. input
W: step-down transformer X: d.c. input
W: step-up transformer X: a.c. input
W: step-up transformer X: d.c. input
Item 42 refers to the following diagram. 1 2 3 4
Which of the following options shows the correct match of the component name and its number?
Diode: 3 Lamp: 1 Resistor: 4 Fuse: 2
Diode: 4 Lamp: 3 Resistor: 1 Fuse: 2
Diode: 1 Lamp: 3 Resistor: 4 Fuse: 2
Diode: 2 Lamp: 4 Resistor: 3 Fuse: 1
Which of the following equations CANNOT be used to determine the power dissipated in a resistor?
Which of the following logic gates does the truth table above describe?
NAND
NOR
AND
OR
What is the resistance of R?
15 Ω
1.5 Ω
0.67 Ω
0.24 Ω
The parts labelled X in the diagram are known as the
commutators
armatures
slip rings
coils
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 which of the following diagrams are resistors P and Q in series with each other and parallel with R?
Diagram A
Diagram B
Diagram C
Diagram D
Which of the following graphs illustrates an ALTERNATING current?
Graph A
Graph B
Graph C
Graph D
Magnetic induction occurs when
an N pole attracts an S pole
an electroscope is charged
a magnet is suspended and points in the NS direction
iron nails near a magnet become magnetized
Which of the following pairs of statements is true for BOTH iron and steel?
Easily magnetized / Does not retain its magnetism
Not easily magnetized / Retains its magnetism well
Easily magnetized / Retains its magnetism well
Not easily magnetized / Does not retain its magnetism
Item 52 refers to the followig diagram which represents a straight wire carrying a current into the plane of the paper. <diagram> X </diagram>
Which of the following diagrams BEST represents the magnetic field around the wire?
Which of the following are possible symbols for an isotope of the nuclide ?
I and II only
I and III only
II and III only
I, II and III
(Carbon-14) decays in accordance with the equation . The emission is
a proton
a gamma ray
a beta particle
an alpha particle
In the equation
c = speed of light, = mass of atom
c = speed of light, = mass lost
c = specific heat capacity of substance, = mass lost
c = specific heat capacity of substance, = mass of substance
The number of neutrons present in the nucleus of the nuclide Rn is
308
222
136
86
Which of the following describes two properties of an -particle?
No charge, very penetrating
Positive charge, very penetrating
Negative charge, not very penetrating
Positive charge, not very penetrating
Which of the following options should be placed in the box to complete the equation?
Which of the following scientists discovered the relationship ?
Marie Curie
Isaac Newton
J.J. Thompson
Albert Einstein
A radioactive isotope has a half-life of 20 days. How many days will it take for a given sample to have its activity reduced to of its initial value?
1.2 days
60 days
80 days
320 days
absorbs
gives out