Physics 0625/12 October/November 2019: question paper and mark scheme

Question

A measuring cylinder contains 10 cm3 of water. A piece of steel is lowered into the measuring cylinder until it is fully submerged. The volume reading increases to 12 cm3. A second piece of steel is lowered into the measuring cylinder so that it is also fully submerged. The volume reading increases to 15 cm3. Which row shows the volumes of the two pieces of steel? volume of first volume of second piece of steel / cm3 piece of steel / cm3 A 2 3 B 2 5 C 12 3 D 12 15

Question

The graph shows the motion of a car for a five-second period. speed 0 0 3 5 time / s Which row is correct? the car is moving at the car is at rest at a constant speed at A 0.0 s 2.0 s B 0.0 s 4.0 s C 4.0 s 0.0 s D 4.0 s 2.0 s

Question

A car travels at an average speed of 60 km / h for 15 minutes. How far does the car travel in 15 minutes? A 4.0 km B 15 km C 240 km D 900 km

Question

A box is placed on the ground. An upward force of 15 N is needed to lift the box at constant speed. Which row correctly describes the box? mass of the box weight of the box A 1.5 kg 15 N B 15 N 1.5 kg C 15 N 150 kg D 150 kg 15 N

Question

The table gives the mass and the volume of three objects P, Q and R. object mass / g volume / cm3 P 23 36 Q 170 720 R 240 340 Which objects can float in a liquid of density 0.85 g / cm3? A P and Q only B P and R only C Q and R only D P, Q and R

Question

A student measures the length of a spring. She then attaches different weights to the spring. She measures the length of the spring for each weight. The table shows her results. weight / N length / mm 0 520 1.0 524 2.0 528 3.0 533 4.0 537 5.0 540 What is the extension of the spring with a weight of 3.0 N attached to it? A 4 mm B 5 mm C 12 mm D 13 mm

Question

What is the unit of the moment of a force? A N B N / kg C N/m D Nm

Question

The diagrams show a block of wood on a frictionless surface. In each diagram, the block has two forces acting on its sides. E F G H 2N 2N 2N 2N 2N 2N 2N 2N Which diagrams show the block in equilibrium? A E, G and H only B E and F only C G and H only D E, F, G and H

Question

Brakes are used to slow down a moving car. Into which form of energy is most of the kinetic energy converted as the car slows down? A chemical B elastic C thermal D sound

Question

What is the unit of thermal energy? A °C B N C J D W

Question

Which source of energy is non-renewable? A oil B solar C tidal D wind

Question

A drawing pin (thumb tack) has a sharp point at one end and a flat surface at the other end. sharp point flat surface The pin is pushed into a wooden board. How do the pressure and the force at the sharp point compare with the pressure and the force on the flat surface? force at the sharp point pressure at the sharp point A greater than on the flat surface greater than on the flat surface B greater than on the flat surface less than on the flat surface C the same as on the flat surface greater than on the flat surface D the same as on the flat surface less than on the flat surface

Question

A metal block of weight W rests on a table. In order to calculate the pressure that the block exerts on the table, one other quantity must be known. What is the other quantity? A the area of contact between the block and the table B the density of the block C the mass of the block D the volume of the block

Question

Which row describes the arrangement and the motion of the molecules in a gas? arrangement motion A far apart move freely B far apart vibrate only C tightly packed move freely D tightly packed vibrate only

Question

A driver of a car measures the pressure of the air in the tyres. He measures the pressure again after a long journey. The pressure reading has increased. Which row states what has happened to the speed of the air molecules and the temperature of the air in the tyres? speed of molecules temperature A decreases decreases B decreases increases C increases decreases D increases increases

Question

Some water in a glass flask is gently heated. water level in tube glass tube glass flask water heat Why does the water level in the glass tube rise during heating? A Only the glass flask expands. B Only the water expands. C The glass flask expands more than the water. D The water expands more than the glass flask.

Question

What is the temperature difference between the fixed points on the °C temperature scale? A 10 °C B 100 °C C 110 °C D 120 °C

Question

The diagram shows four labelled changes of state between solid, liquid and gas. P Q solid liquid gas S R Which changes need an energy input? A P and Q B Q and R C R and S D S and P

Question

Which method of thermal transfer occurs when the density of some of a liquid decreases and the liquid moves upwards? A conduction B convection C evaporation D radiation

Question

The diagram shows a tent made from a new material. new material What type of material should the tent be made of to reflect the radiant energy from the Sun? material material texture surface colour A dull black B dull white C shiny black D shiny white

Question

Which row correctly describes the vibrations of a transverse wave and also gives a correct example of a transverse wave? example of a description of vibration transverse wave A right-angles to the wave direction sound B right-angles to the wave direction water wave C parallel to the wave direction sound D parallel to the wave direction water wave

Question

Plane water waves approach a narrow gap in a barrier. Which diagram shows the diffraction pattern that would occur? A B C D

Question

A ray of light is incident on a plane mirror. A student measures the angle of incidence i and the angle of reflection r. incident i r reflected ray ray The student varies the angle of incidence and then plots a graph of r against i. What does the graph look like? A B C D r r r r 0 0 0 0 0 i 0 i 0 i 0 i

Question

The diagram shows the path of a ray of green light through a glass prism. The angle of deviation is the angle between the incident ray and the ray leaving the prism. prism angle of incident ray deviation of green light When a ray of white light is incident on the prism, it separates into the colours of the visible spectrum. What is the name of this effect and which colour of light has the smallest angle of deviation? colour with smallest name of effect angle of deviation A diffraction red B diffraction violet C dispersion red D dispersion violet

Question

The diagram shows the electromagnetic spectrum. radio γ-rays X-rays ultraviolet visible light infrared microwaves waves increasing …… A word is missing from the label below the spectrum. Which word is missing? A amplitude B frequency C speed D wavelength

Question

A man hears a starting pistol fire 1.5 seconds after he sees a puff of smoke from the pistol. The sound and the smoke are made at the same time. The starting pistol is 450 metres away from the man. What is the speed of sound calculated from this observation? A 150 m / s B 300 m / s C 330 m / s D 625 m / s

Question

A bar magnet is slowly moved towards an unmagnetised metal object X. bar magnet S N X When it is a few centimetres away, the object begins to slide towards the magnet. Why does this happen? A X is a non-magnetic material and magnetism is induced in it. B X is a non-magnetic material and magnetism is not induced in it. C X is a magnetic material and magnetism is induced in it. D X is a magnetic material and magnetism is not induced in it.

Question

Two soft-iron rods are placed end-to-end inside a coil. The coil is connected to a battery. coil soft-iron rod soft-iron rod The connections from the battery to the coil are now reversed. What happens to the soft-iron rods in each case? battery connections battery connections as shown reversed A rods attract rods attract B rods attract rods repel C rods repel rods attract D rods repel rods repel

Question

A plastic rod is rubbed with a dry cloth. The rod becomes positively charged. Why has the rod become positively charged? A It has gained electrons. B It has gained neutrons. C It has lost electrons. D It has lost neutrons.

Question

Which quantity has the same unit as potential difference (p.d.)? A current B electromotive force (e.m.f.) C resistance D moment of a force

Question

A student determines the resistance of an electric lamp. He measures the current in the lamp and the potential difference (p.d.) across it. Which circuit did he use? A B A A V V C D V V A A

Question

Identical resistors are connected together to form arrangements X, Y and Z. X Y Z What is the correct order of the resistances of the arrangements from the largest to the smallest? A X→Y→Z B Y→X→Z C Z→X→Y D Z→Y→X

Question

The circuit shows a wire WX connected to a cell. 100 cm W X V The potential difference (p.d.) between W and X is 1.5 V. What is the reading on the voltmeter? A 0.4 V B 0.6 V C 0.9 V D 4.0 V

Question

Where must a fuse be connected in a mains electric circuit? A the earth wire only B the live wire only C the neutral wire only D the live wire and the earth wire

Question

The N-pole of a magnet is moved into a coil of wire connected to a galvanometer. coil S N The needle of the galvanometer moves. Which situation must give a smaller galvanometer reading? A Use a coil with fewer turns and a stronger magnet. B Use a coil with fewer turns and a weaker magnet. C Use a coil with more turns and a stronger magnet. D Use a coil with more turns and a weaker magnet.

Question

The diagram shows a conductor carrying current in a direction out of the plane of the page. Which set of arrows represents the direction of the magnetic field due to this current? A B key wire carrying a current out of the paper C D

Question

The diagrams show the simple atomic structure for two neutral atoms X and Y of different elements. X Y Which row is correct? atom with atom with a more more electrons positively charged nucleus A X X B X Y C Y X D Y Y

Question

A nuclide of chlorine has the symbol shown. 35 17Cl What is the nucleon number of this nuclide of chlorine? A 17 B 18 C 35 D 52

Question

Which type of radiation can be stopped by a sheet of paper? A α-particles B β-particles C γ-rays D Χ-rays

Question

Why are some radioactive sources stored in boxes made from lead? A Lead absorbs emissions from the radioactive sources. B Lead decreases the half-life of radioactive sources. C Lead increases the half-life of radioactive sources. D Lead repels emissions from the radioactive sources.