Class 10 p1 Final

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    1 The diagram shows an enlarged drawing of the end of a metre rule. It is being used to measure

    the length of a small feather.

    What is the length of the feather?

    A 19 mm B 29 mm C 19 cm D 29 cm

    2 An object moves initially with constant speed and then with constant acceleration.

    Which graph shows this motion?

    3 A tennis player hits a ball hard and 0.40 s later hears the echo from a wall.

    The speed of sound in air is 330 m / s.How far away is the player from the wall?

    A 66 m B 132 m C 264 m D 825 m

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    4 Which statement about mass and weight is correct?

    A Mass and weight are both forces.B Neither mass nor weight is a force.

    C Only mass is a force.

    D Only weight is a force.

    5 The diagram shows a balance being used to find the weight of a baby. The weight of the basketcan be ignored. At equilibrium, the pivot is nearer to the weight W than to the baby.

    What is the weight of the baby?

    A less than W B more than WC W D impossible to tell

    6 Which set of equipment could be used in an experiment to determine the density of an irregularly

    shaped pebble?A mass balance and measuring cylinder

    B mass balance and micrometer

    C measuring cylinder and vernier calipers

    D newton-meter and vernier calipers

    7 The diagram shows a metre rule pivoted off-centre but kept in equilibrium by a suspended mass

    of 240 g.

    The centre of mass of the rule is at the 50 cm mark.

    What is the mass of the rule?A 12 g B 24 g C 45 g D 120 g

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    8 Which row correctly describes force, mass and acceleration as vector or scalar quantities?

    9 A tennis ball is dropped on to a horizontal surface. As the ball bounces up and down, the heightof each bounce gradually decreases. During the motion of the ball,

    A the kinetic energy of the ball is constant.

    B the potential energy of the ball is constant.

    C the sum of the kinetic and potential energies of the ball is constant.D the total energy of the ball, ground and air is constant.

    10 The height of a mercury barometer is h when the atmospheric pressure is 100 000Pa.

    What is the pressure at X?

    A 20 000Pa B 80 000Pa C 120 000Pa D 180 000Pa

    11 A person uses chemical energy to run up some stairs.

    She stops at the top of the stairs.

    What has the chemical energy been converted to when she is at the top of the stairs?A kinetic energy and gravitational energy B kinetic energy and strain energy

    C gravitational energy and heat energy D strain energy and heat energy

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    12 Electrical energy may be obtained from nuclear fission.

    In what order is the energy transferred in this process?A nuclear fuel generator reactor and boiler turbines

    B nuclear fuel generator turbines reactor and boiler

    C nuclear fuel reactor and boiler generator turbines

    D nuclear fuel

    reactor and boiler

    turbines

    generator

    13 The diagram shows a simple mercury barometer, used to measure atmospheric pressure.

    Atmospheric pressure increases. What happens to the level L and to the pressure at P?

    14 The gas in a container is heated but is kept at constant volume.

    Why does the gas pressure increase?

    A The molecules expand.B The molecules increase in mass.

    C The molecules move further apart.

    D The molecules move more rapidly

    15 The table lists the melting points and the boiling points of four different substances A, B, C and

    D. Which substance is a gas at 25 C?

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    16 1 kg of water and 1 kg of aluminium are heated to the same temperature and then allowed to

    cool in a room. Why does the aluminium cool more quickly than the water?A Aluminium contracts more than water.

    B Aluminium does not evaporate but water does.

    C Aluminium has a higher thermal capacity than water.

    D Aluminium has a lower thermal capacity than water.

    17 Bread can be cooked by placing it below, but not touching, a heating element.

    Which process transfers thermal energy from the heating element to the bread?

    A conduction B convectionC insulation D radiation

    18 The diagram shows a refrigerator. The cooling unit is placed at the top. The cooling unit cools

    the air near it.

    What happens to the density of this air as it cools and how does it move?

    19 Water waves are reflected at a plane surface.

    Which property of the waves is changed by the reflection?

    A direction B frequencyC speed D wavelength

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    20 Plane water waves travel from a shallow region into a deeper region. They travel more quickly in

    the deeper water.

    Which diagram shows the wave pattern in the deeper water?

    21 Which diagram shows what happens when a ray of white light passes through a prism?

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    22 The diagram shows the path of a ray of light passing through a principal focus F of a lens.

    Which broken line shows the direction of the ray after it leaves the lens?

    23 A small boat in a harbour is protected from waves on the sea by harbour walls.

    Some waves can curve round the harbour walls and reach the boat.

    What is the name for this effect?A diffraction B dispersion

    C reflection D refraction

    24 An engineer standing at P sees an explosion at X.

    After the explosion, she hears two bangs. One bang is heard a fraction of a second after the

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    other. The second bang is an echo.

    From which surface has the sound reflected to cause this echo?

    A XY B PV C ZY D WX

    25 The north pole of a bar magnet is placed next to end P of an iron bar PQ, as shown. As a result,

    magnetic poles are induced in the iron bar.

    What are the magnetic poles induced at P and at Q?

    26 The diagram shows an alarm system.

    What happens when battery P is disconnected?

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    27 The resistance of a cylindrical wire P is 80 . A second wire Q is made from the same material.

    The cross-sectional area of Q is four times that of P. The length of Q is twice the length of P.

    What is the resistance of Q?

    A 10 B 40 C 160 D 640

    28 The diagram shows a potential divider system of two resistors connected to a 6.0 V power

    supply

    What is the reading on the voltmeter?A 1.0 V B 1.2 V C 3.0 V D 5.0 V

    29 In the circuit shown, the alarm bell will only start ringing some time after the switch is closed.

    What causes the time delay?A the capacitor charging

    B the capacitor discharging

    C the resistor cooling downD the resistor heating up

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    30 Which appliance used on a 240 V supply is most likely to burn out its fuse?

    31 For a step-down transformer, what are the relative numbers of turns on the two coils and the

    material of the core?

    32 The diagram shows a current-carrying wire passing through the centre of a sheet of paper.

    How do the strengths of the magnetic field at points X, Y and Z compare?

    A equal at X, Y and ZB equal at X and Z, but stronger at Y

    C equal at X and Z, but weaker at Y

    D stronger at X than Y and stronger at Y than Z33 A 12 V lamp is connected to a 12 V supply using very long leads.

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    Why does the lamp glow only dimly?

    A A d.c. supply is being used rather than an a.c. supply.B Electrical energy is converted to heat in the long leads.

    C The current through the lamp is less than that from the supply.

    D The potential difference across each lead is half the voltage supply.

    34 The diagram shows a horizontal beam of electrons entering a region between two charged plates.

    In which direction is the electron beam deflected?

    A upwards

    B downwardsC into the diagram

    D out of the diagram

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    36 The diagram shows some of the important parts of the tube of a cathode-ray oscilloscope.

    Which change in voltage results in the position of the spot on the screen moving towards the top?A decreasing V1 B decreasing V3

    C increasing V2 D increasing V3

    37 A thermistor is connected in a circuit with a 6 V cell, a 3000 resistor and a voltmeter, as

    shown. The graph shows how the resistance of the thermistor varies with temperature.

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    What is the temperature of the thermistor when the voltmeter reads 2 V?

    A 20oC B 40

    oC C 60

    oC D 80

    oC

    38 A radioactive source is placed 3 cm from a Geiger-Mller tube in air. The average count rate is

    742 counts / minute.

    Then, in three experiments, measurements are taken with sheets of different materials placed

    between the source and the tube. The results are recorded in the table.

    Which types of radiation does the source emit?

    A alpha and beta onlyB alpha and gamma onlyC beta and gamma only

    D alpha, beta and gamma

    39 Which equation shows a nuclear fission reaction?

    40 Between 1909 and 1911, Geiger and Marsden carried out experiments in which alpha particleswere fired at metal foil. Most of the alpha particles passed through the foil with small

    deflections, but some were deflected through a large angle. These results suggest that

    A atoms contain clouds of electrons through which some alpha particles cannot pass.

    B atoms contain neutrons that alpha particles bounce off.

    C atoms have positive and negative charges spread throughout their volume.D atoms have positive charges concentrated in a small volume.