Physics 0625/12 October/November 2022: question paper and mark scheme

Question

Which measuring instrument can be used to find the volume of a small stone? A measuring cylinder partly filled with water B measuring tape C metre rule D protractor

Question

The diagrams show speed–time graphs for four different bodies moving for 6.0 s. Which body travelled the least distance? A B 8.0 8.0 speed speed m/s m/s 6.0 6.0 4.0 4.0 2.0 2.0 0 0 0 2.0 4.0 6.0 0 2.0 4.0 6.0 time / s time / s C D 8.0 8.0 speed speed m/s m/s 6.0 6.0 4.0 4.0 2.0 2.0 0 0 0 2.0 4.0 6.0 0 2.0 4.0 6.0 time / s time / s

Question

Which row shows the mass and the weight of an object near the Earth’s surface? mass / kg weight / N A 0.2 0.2 B 2 0.2 C 2 20 D 20 10

Question

The diagram shows four pieces of laboratory apparatus. 100 100 90 90 80 80 70 70 60 60 50 50 40 40 30 30 0.0g 20 20 10 10 balance measuring ruler stop-watch cylinder Which pieces of apparatus are used to find the density of a liquid? A balance and stop-watch B balance and measuring cylinder C measuring cylinder and ruler D stop-watch and ruler

Question

What is the unit for the moment of a force about a point? A W B Ns C N/m D Nm

Question

On which ball is a non-zero resultant force acting? A B a ball moving at constant a ball at rest on a bench speed on a smooth surface direction of movement C D a free-falling ball which a ball floating on water has just been released direction of water movement

Question

Which statements must be correct for an object to be in equilibrium? 1 The object is moving in a straight line. 2 There is no resultant force on the object. 3 There is no resultant moment on the object. A 1 and 2 only B 1 and 3 only C 2 and 3 only D 1, 2 and 3

Question

An object falls towards the Earth’s surface. What happens to the gravitational potential energy and to the kinetic energy of the object? gravitational potential kinetic energy energy A decreases decreases B decreases increases C increases decreases D increases increases

Question

Which source of energy is not currently used to generate electrical energy? A nuclear fusion B solar C tidal D waves

Question

A mass is lifted from rest on the ground to Y. There is no air resistance. Y P is the increase in gravitational energy of the mass. Q is the kinetic energy of the mass at Y. Which expression is equal to the mechanical work done on the mass? A P+Q B P–Q C Q–P D P×Q

Question

A pressure gauge is lowered into the sea. Measurements of the pressure and depth are taken as the pressure gauge is lowered. Which statement describes how and why the pressure changes as the gauge is lowered? A The density of the sea water decreases so the pressure increases. B The depth of the gauge below the surface of the sea increases so the pressure increases. C The height of the gauge above the sea bed decreases so the pressure decreases. D The temperature of the sea water decreases so the pressure decreases.

Question

The pressure of a fixed mass of gas in a cylinder is measured. The volume of the gas in the cylinder is slowly decreased. The temperature of the gas does not change. Which graph shows how the pressure of the gas changes during this process? A B pressure pressure 0 0 0 time 0 time C D pressure pressure 0 0 0 time 0 time

Question

Which statement about the motion of molecules describes the process of evaporation? A Molecules break free from their fixed positions. B Freely moving molecules collide and join together. C Molecules escape from the surface of a liquid. D Freely moving molecules gain energy and move further apart.

Question

The diagram shows a thermometer calibrated in degrees Celsius. qC 110 100 90 80 70 60 50 40 30 20 10 0 –10 What are the values of the lower fixed point and of the upper fixed point on the Celsius scale? lower fixed upper fixed point / °C point / °C A –10 110 B 0 20 C 0 100 D 20 100

Question

What happens to a solid when its temperature increases? A It contracts. B Its density increases. C Its internal energy increases. D Its molecules move freely.

Question

Which piece of equipment is designed to produce a type of electromagnetic wave? A electric fire B electric generator C electric motor D electromagnet

Question

Particles can move, transferring thermal energy, as shown. heater In which states of matter does this movement occur? A gas and liquid only B gas and solid only C gas, liquid and solid D liquid and solid only

Question

The diagram shows plane water waves in a ripple tank passing through a gap between two barriers and spreading out. barrier plane water waves barrier Which name is given to this effect? A diffraction B reflection C refraction D total internal reflection

Question

What are the correct labels for the ray diagram? W Y X Z principal object image focus A W X Y B W Z Y C X Y Z D X Z W

Question

The diagram shows an object in front of a plane mirror. At which labelled position is the image of the object formed? B C A D plane mirror eye object

Question

The angle between an incident ray and the surface of a plane mirror reflecting the ray is 70°. What is the angle of incidence? A 20° B 40° C 70° D 140°

Question

Visible light has a frequency of approximately 5.0 × 1014 Hz. M and N are two other types of electromagnetic radiation. The frequency of M is 5.0 × 106 Hz. The frequency of N is 5.0 × 1015 Hz. Which types of radiation are M and N? M N A radio waves infrared B radio waves ultraviolet C ultraviolet X-rays D X-rays infrared

Question

Two students are describing different types of electromagnetic radiation. student 1 This radiation is used in communications. student 2 This radiation is used in remote controllers. Which row shows the possible type of radiation that each student is describing? student 1 student 2 A microwave infrared B radio ultraviolet C sound waves visible light D X-rays gamma rays

Question

A 100 m race is started by firing a gun. The gun makes a bang and a puff of smoke at the same time. starter finishing judge 100 m When does the finishing judge see the smoke and when does he hear the bang? sees the smoke hears the bang A almost immediately almost immediately B almost immediately after about 0.3 s C after about 0.3 s almost immediately D after about 0.3 s after about 0.3 s

Question

An electric hairdryer is rated 230 V, 2 A. Which circuit could be used to check that these ratings are correct? A B power power supply supply V A hairdryer A hairdryer V C D power power supply supply V A hairdryer hairdryer A V

Question

The diagram shows a circuit used to control the potential difference (p.d.) across a lamp. The variable resistor is adjusted until the p.d. across the lamp is 6.0 V. The current in the lamp is 0.5 A. V What is the resistance of the lamp? A 0.083 Ω B 3.0 Ω C 6.5 Ω D 12.0 Ω

Question

What are the units of electromotive force (e.m.f.)? A amperes B watts C ohms D volts

Question

A plastic rod is rubbed with a dry woollen cloth. The rod becomes positively charged. Which statement is correct? A Electrons move from the cloth to the rod. B Electrons move from the rod to the cloth. C Protons move from the cloth to the rod. D Protons move from the rod to the cloth.

Question

A circuit containing a cell, a resistor and a lamp is set up as shown. A student connects a voltmeter to the circuit in one of the positions shown. In which position does the voltmeter measure the potential difference (p.d.) across the lamp? A V B V V D V C

Question

The diagram shows a potential divider circuit. V The temperature of the thermistor increases. What happens to the resistance of the thermistor, and what happens to the reading on the voltmeter? resistance of voltmeter thermistor reading A decreases decreases B decreases increases C increases decreases D increases increases

Question

A student sets up four circuits using identical batteries and three identical lamps. In which circuit will all the lamps be the brightest? A B C D

Question

Which diagram shows the circuit symbol for a fuse? A B C D

Question

If the insulation within a mains cable becomes damaged, two of the wires in it may touch and cause a short circuit. Which row is correct? safety device which the danger when this happens avoids this danger A a large current will overheat a fuse the wiring and lead to a fire B a large current will overheat a relay the wiring and lead to a fire C the appliance at the end a fuse of the cable will be damaged D the appliance at the end a relay of the cable will be damaged

Question

Four small compasses are placed around a solenoid. solenoid A current is now switched on in the solenoid. Which diagram shows possible new directions of the compass needles? A B C D

Question

Transformers are used in the transmission of electrical power to houses. Which type of transformer is used at the power station prior to connection to the power lines and which type is used prior to delivery to the houses? power station before houses A step-down step-down B step-down step-up C step-up step-down D step-up step-up

Question

The diagrams show the coils of two simple direct current (d.c.) motors. Coil P has three turns of wire and coil Q has two turns. Coil P has the same dimensions as coil Q. The coils are in identical magnet fields. coil P coil Q What produces the greatest turning effect? coil current / A A P 2 B P 4 C Q 2 D Q 4

Question

A nuclide of cobalt contains 27 protons and 32 neutrons. Which symbol represents this nuclide? 27 32 32 59 A 59 Co B 27 Co C 59 Co D 27 Co

Question

Everyone is exposed to background radiation. What are sources of background radiation? A food and drink only B rocks only C cosmic rays only D food and drink, rocks and cosmic rays

Question

The diagram shows a piece of apparatus used to determine the nature of the emissions from a radioactive source. The absorbers can be raised out of or lowered into the path of the radiation from the source to the detector. The apparatus is evacuated. different absorbers detector radioactive source vacuum The table gives a set of results for a particular radioactive source. count rate on detector absorber in use (counts per second) none 350 thin paper 350 1.0 mm aluminium 180 1.0 cm lead 23 Which types of radiation are being emitted by the radioactive source? A α-particles and β-particles B α-particles only C β-particles and γ-rays D β-particles only

Question

The half-life of a sample of radioactive material is 400 years. How long will it take until only 1 of this sample remains undecayed? 4 A 100 years B 400 years C 800 years D 1600 years