CAIE Physics (9702)

Which estimate is reasonable? kg for the mass of a grain of sand for the volume of a tennis ball J for the work done lifting an apple from waist height to head height W for the power of a light bulb in a house

What is the symbol for the SI base unit of temperature?

Which statement about systematic errors is not correct? A A systematic error can be caused by using an incorrectly calibrated instrument. B One particular type of systematic error can affect all the measurements by the same amount. C The effect of a systematic error can be reduced by repeating a nd averaging the measurements. D Zero error is a type of systematic error.

An object is moving with an initial velocity of 4.0 m s to the right. The velocity of the object changes so that its final velocity is 3.0m s downwards, as shown. initial velocity 4.0m s final velocity 3.0m s Which arrow represents the change in velocity of the object? A BC D

A car travels anticlockwise along a horizontal circular road of radius 12 m, as shown. The car takes a time of 4.0 s to move from position P to position Q. road direction of travel of car What is the magnitude of the average velocity of the car for the journey from P to Q? A 4.2m s B 4.7 m s C 6.0 m s D 14 m s

The water surface in a deep well is 78.0 m below the top of the well. A person at the top of the well drops a heavy stone down the well. Air resistance is negligible. The speed of sound in the air is 330m s What is the time interval between the person dropping the stone and hearing it hitting the water? A 3.75 s B 3.99 s C 4.19 s D 4.22 s

Which statement is not a requirement of a pair of forces that obey Newton's third law of motion? A The forces act in opposite directions. B The forces act on different objects. C The forces act on objects in contact. D The forces are of equal magnitude.

A child of mass 20 kg stands on the rough surface of a sledge of mass 40 kg. The sledge can slide on a horizontal frictionless surface. One end of a rope is attached to the sledge. The rope passes around a fixed frictionless pole, and the other end of the rope is held by the child, as shown. horizontal rope frictionless pole frictionless surface The rope is horizontal. The child pulls on the rope with a horizontal force of 12 N. This causes the child and the sledge to move with equal acceleration towards the pole. What is the frictional force between the child and the sledge? A 4.0 N B 6.0 N C 8.0 N D 12 N

A stone S and a foam rubber ball R are identical spheres of equal volume. They are released from rest at time t = 0 and fall vertically through the air. Both reach terminal velocity. Which graph best shows the variation with time t of the speed v of the stone and of the rubber ball? R and S

Two balls X and Y are moving towards each other with speeds of 5 m s and 15 m s respectively. m sm s They make a perfectly elastic head-on collision and ball Y moves to the right with a speed of 7m s What is the speed and direction of ball X after the collision?A 3m s to the left B 13m s to the leftC 3m s to the right D 13m s to the right

Two forces form a couple. Which statement describes the two forces? A They are in the same direction. B They are perpendicular to each other. C They have the same magnitude. D They pass through the same point.

A uniform rod is attached by a hinge at one end to a wall. The other end of the rod is supported by a wire so that the rod is horizontal and in equilibrium. rod wire wall hinge Which arrow shows the direction of the force on the rod from the hinge? A BC D

A diving board of length 5.0 m is hinged at one end and supported 2.0 m from this end by a spring of spring constant 10 kN m . A child of mass 40 kg stands at the far end of the board. mass of child 2.0 m 5.0 m diving board spring hinge What is the extra compression of the spring caused by the child standing on the end of the board? A 1.0 cm B 1.6 cm C 9.8 cm D 16 cm another planet. The acceleration of free fall on the surface of the other planet is twice that on the surface of the Earth. What is the density of the rock on the other planet? A 0.5

A closed U-shaped tube contains a stationary liquid of density gas at pressure p 1 and the other side contains a gas at pressure p 2, as shown. gas, pressure p gas, pressure p liquid, density The acceleration of free fall is g. Which equation is correct?A pB pC pD p

Which product of two quantities is equal to power?

Researchers have developed a new type of filament lamp with an efficiency of 40%. Old-type filament lamps have an efficiency of 5.0%. The two types of lamp produce the same useful output power. What is the ratio input power to new type of lamp input power to old type of lamp A 0.13 B 0.63 C 1.6 D 8.0

A student attempts to derive the formula for kinetic energy E K. She begins by considering an object of mass m which is initially at rest. A constant force F applied to the object causes it to accelerate to final velocity v in displacement s. The kinetic energy gained by the object is equal to the work done on the object by the force F. Which equation would the student not need in order to derive the formula for E A F = ma B W = Fs C E =D v= u + 2as Pa. The wire has an original length of 1.6 What is the spring constant of the wire?N m N m N m N m

A wire is being stretched by a tensile force. Which statement about the elastic limit must be correct? A The deformation is plastic after the elastic limit has been reached. B The deformation is plastic until the elastic limit is reached. C The extension is proportional to the tensile force after the elastic limit has been reached. D The extension is proportional to the tensile force until the elastic limit is reached.

Which statement is correct for all types of progressive wave? A The distance from a peak to the next trough is equal to a wavelength. B They can be demonstrated in ripple tanks. C They consist of vibrating atoms. D They transfer energy from one position to another.

A transverse water wave is moving along the surface of some water. This causes a ball to move vertically without moving horizontally as it floats upon the surface. At one instant, the ball is at the position shown. 2.4 m 0.70 ball direction of wave travel NOT TO SCALE The wave has a frequency of 0.20 Hz and an amplitude of 0.70 m. The distance between a trough and an adjacent peak is 2.4 What is the distance travelled by the ball in a time of 20 A 5.6 m B 9.6 m C 11.2 m D 19.2 m

A sound wave travels from left to right across a room. The variation with distance across the room of the displacement of the air molecules at one instant is shown. At which distance will the air pressure be lowest? displacement distance from left-hand end of room right left ABCD

A source emits a sound wave of a single frequency. The Doppler effect causes a different frequency of sound to be heard by a stationary observer. What is a requirement for the Doppler effect to occur? A a source that is moving as it produces the sound wave B a source that produces a polarised sound wave C a source that produces a sound wave of changing amplitude D a source that produces a sound wave of changing frequency Hz. Which region of the electromagnetic spectrum includes this frequency? A infrared B microwave C ultraviolet D X-ray

Two polarising filters are placed next to each other so that their planes are parallel. A beam of vertically polarised light of intensity 8.0W m is incident normally on the first polarising filter. What is the intensity of the light that is transmitted from the second polarising filter? A zero B 2.5W m C 2.9 W m D 6.0 W m

A stationary wave on a stretched string is set up between two points P and T. vibrator Which statement about the stationary wave is correct? A Point R is at a node. B Points Q and S vibrate in phase. C The distance between P and T is three wavelengths. D The wave transfers energy from P to T.

A bar vibrates with frequency f to produce water waves in a ripple tank. bar vibrating with frequency f barrier with gap of width x The waves pass through a gap of width x in a barrier so that diffraction occurs. Which combination of vibration frequency and gap width will produce the smallest angle of diffraction? vibration frequency gap width C 2f D 2f 2 x

An outdoor concert has two large speakers beside the stage for broadcasting music. In order to test the speakers, they are made to emit sound of the same wavelength and the same amplitude. The curved lines in the diagram represent wavefronts. Where is the loudest sound heard? A C speakers stage 30 The equation is used to calculate the wavelength light from the diffraction grating is displayed on a screen. What do the symbols n and d represent? n d A number of slits in the grating distance between adjacent slits in the grating B number of slits in the grating distance from grating to screen C order of intensity maximum distance between adjacent slits in the grating D order of intensity maximum distance from grating to screen

The diagram shows a metal block. I I The block has sides of length a, b and c as shown, and its volume is V. Each charge carrier has a charge -q and the number density of the charge carriers in the metal is n. It takes each charge carrier an average time of t to pass through the block. What is an expression for the current I A I = nqabc B I =nqV C I = nqbc D I = nqaV

The circuit diagrams show two lamps X and Y each connected to a cell. The current in lamp X is 0.50 0.50 A lamp X 9.6 3.0 A lamp Y 1.2 What is the ratio Ylamp in power X lamp in power A 0.22 B 0.75 C 1.3 D 4.5

The intensity of light incident on a light-dependent resistor (LDR) is increased. The temperature of a thermistor is increased. In each case, the current in the component is maintained at a constant value. What happens to the potential difference across each component? LDR thermistor A increases increases B increases decreases C decreases increases D decreases decreases

An iron wire has length 8.0 m and diameter 0.50 mm. The wire has resistance R. A second iron wire has length 2.0 m and diameter 1.0 mm. What is the resistance of the second wire?D R

A cell with constant electromotive force (e.m.f.) is connected across a fixed resistor. Over time, the internal resistance of the cell increases. Which change occurs as the internal resistance of the cell increases? A a decrease in the charge of each charge carrier B a decrease in the potential difference measured across the cell C an increase in the energy dissipated per unit time in the fixed resistor D an increase in the number of charge carriers leaving the cell per unit time

Kirchhoff's first and second laws are consequences of the conservation of different quantities. What are those quantities? Kirchhoff's first law Kirchhoff's second law A charge energy B energy current C current charge D energy charge

A potentiometer circuit is used to determine the electromotive force (e.m.f.) E X of a cell. The circuit includes a second cell of known e.m.f. E 0 and negligible internal resistance, and a uniform resistance wire PQ of known length. X is less than E 0. The movable connection J can be positioned anywhere along the length of the resistance wire. Which circuit is suitable for determining E Which statement cannot be deduced from this experiment? A Atoms are mostly empty space. B Most of the mass of an atom is concentrated in the nucleus. C The nucleus of an atom contains protons. D The nucleus of an atom is small compared to the size of an atom.

Four nuclei are represented below. Which statement about these nuclei is correct? A An uncharged atom of element Q has 24 orbital electrons. B Nuclei G and M are isotopes of the same element. particle, M transforms into Q.

A neutron is composed of one up

quark and two down

quarks. When a neutron decays to a proton, a beta-particle is emitted. What is the change in the quark structure of the neutron due to the emission of the beta-particle? e and for an antineutrino is Permission to reproduce items where third-party owned material protected by copyright is included has been sought and cleared where possible. Every reasonable effort has been made by the publisher (UCLES) to trace copyright holders, but if any items requiring clearance have unwittingly been included, the publisher will be pleased to make amends at the earliest possible opportunity. To avoid the issue of disclosure of answer-related information to candidates, all copyright acknowledgements are reproduced online in the Cambridge Assessment International Education Copyright Acknowledgements Booklet. This is produced for each series of examinations and is freely available to download at www.cambridgeinternational.org after the live examination series. Local Examinations Syndicate (UCLES), which is a department of the University of Cambridge.