Paper 2 style practice paper: Multiple choice (Extended) — question paper

Section A: Multiple-choice questions[40 marks]

Choose one answer for each question. Each question is worth 1 mark.

1. 1

   A measuring cylinder is read at the bottom of the meniscus. A student reads the top instead. The volume values obtained will be

   1. Atoo small
   2. Btoo large
   3. Cexact
   4. Dunpredictable
   ( )
2. 2

   A pendulum completes 40 oscillations in 35 s. Its period is

   1. A1.14 s
   2. B0.88 s
   3. C1.60 s
   4. D35 s
   ( )
3. 3

   Which pair consists of two vector quantities?

   1. Amomentum and gravitational field strength
   2. Bmass and speed
   3. Cenergy and temperature
   4. Ddistance and time
   ( )
4. 4

   A ferry crosses a river at 4.0 m/s relative to the water while the water flows at 3.0 m/s at right angles to the crossing. The ferry’s speed over the river bed is

   1. A7.0 m/s
   2. B12 m/s
   3. C1.0 m/s
   4. D5.0 m/s
   ( )
5. 5

   On which graph would a horizontal line show an object travelling at constant speed?

   1. Adistance–time
   2. Bspeed–time
   3. Cacceleration–time
   4. Dweight–mass
   ( )
6. 6

   A car accelerates uniformly from 6.0 m/s to 18 m/s in 8.0 s. Its acceleration is

   1. A2.3 m/s²
   2. B0.67 m/s²
   3. C1.5 m/s²
   4. D24 m/s²
   ( )
7. 7

   An astronaut of mass 80 kg stands on a planet where the gravitational field strength is 4.9 N/kg. The astronaut’s weight there is

   1. A392 N
   2. B784 N
   3. C16 N
   4. D80 kg × 9.8 N/kg on Earth, unchanged
   ( )
8. 8

   A cube of side 2.0 cm has a mass of 16 g. Its density is

   1. A8.0 g/cm³
   2. B0.25 g/cm³
   3. C64 g/cm³
   4. D2.0 g/cm³
   ( )
9. 9

   A spring stretches by 9.0 mm under a load of 3.6 N. Its spring constant is

   1. A32 N/m
   2. B400 N/m
   3. C0.40 N/m
   4. D32 000 N/m
   ( )
10. 10

    A beam balance is level. The total clockwise moment about its pivot is 15 N cm. The total anticlockwise moment is

    1. Azero
    2. Bless than 15 N cm
    3. C15 N cm
    4. D30 N cm
    ( )
11. 11

    A cyclist brakes and stops. The main energy transfer from the kinetic store is to

    1. Athe internal store of the brakes and wheel
    2. Bthe chemical store of the rider
    3. Cthe gravitational store
    4. Da nuclear store
    ( )
12. 12

    A motor is 60% efficient and takes in 1500 J. Its useful output is

    1. A2500 J
    2. B600 J
    3. C60 J
    4. D900 J
    ( )
13. 13

    A crane lifts a 40 kg load through 5.0 m at steady speed in 10 s. Taking g = 9.8 N/kg, the useful power is

    1. A20 W
    2. B196 W
    3. C392 W
    4. D2000 W
    ( )
14. 14

    A fixed mass of gas is squeezed to half its volume at constant temperature. Its pressure

    1. Ahalves
    2. Bquadruples
    3. Cdoubles
    4. Ddoes not change
    ( )
15. 15

    The pressure increase 4.0 m below the surface of a liquid of density 1200 kg/m³ (g = 9.8 N/kg) is about

    1. A47 kPa
    2. B4.7 kPa
    3. C470 kPa
    4. D29 kPa
    ( )
16. 16

    Melting an ice cube at 0 °C is an energy input with

    1. Aa steady rise in temperature
    2. Ba rise then a fall in temperature
    3. Ca fall in temperature
    4. Dno change in temperature
    ( )
17. 17

    Sea breezes and boiling water both circulate heat by

    1. Aconduction
    2. Bconvection
    3. Cradiation
    4. Devaporation
    ( )
18. 18

    Which surface is the best emitter of infrared radiation?

    1. AShiny white
    2. BShiny silver
    3. CDull black
    4. DPolished gold
    ( )
19. 19

    A wave has frequency 40 Hz and wavelength 4.5 m. Its speed is

    1. A180 m/s
    2. B8.9 m/s
    3. C0.11 m/s
    4. D44.5 m/s
    ( )
20. 20

    Straight water waves pass into a region where they travel more slowly. Their wavefronts

    1. Amove further apart and change direction
    2. Bdisappear
    3. Ckeep the same spacing and direction
    4. Dmove closer together and change direction
    ( )
21. 21

    A ship’s sonar receives an echo 1.6 s after emitting a pulse. Taking the speed of sound in sea water as 1500 m/s, the seabed depth is

    1. A2400 m
    2. B1200 m
    3. C938 m
    4. D600 m
    ( )
22. 22

    A ray of light strikes a plane mirror at 15° to the mirror surface. The angle of reflection is

    1. A15°
    2. B30°
    3. C75°
    4. D165°
    ( )
23. 23

    Light travels at 2.0 × 10⁸ m/s in a transparent solid. The refractive index of the solid is

    1. A1.5
    2. B0.67
    3. C2.0 × 10⁸
    4. D3.0
    ( )
24. 24

    An object is placed between a converging lens and its focal point. The image formed is

    1. Ainverted and real
    2. Bupright and real
    3. Cinverted and virtual
    4. Dupright and virtual
    ( )
25. 25

    Which colour of visible light has the shortest wavelength?

    1. ARed
    2. BViolet
    3. CYellow
    4. DGreen
    ( )
26. 26

    Electromagnetic waves used to sterilise medical equipment are

    1. Aradio waves
    2. Binfrared
    3. Cgamma rays
    4. Dmicrowaves
    ( )
27. 27

    The main danger of excessive exposure to ultraviolet radiation is

    1. Adamage to surface cells and eyes
    2. Binternal heating of body cells
    3. Cskin burns only
    4. Dbone damage
    ( )
28. 28

    Digital signals carry more data per second than analogue signals and can be regenerated accurately, which

    1. Areduces their range
    2. Bprevents all noise from ever being added
    3. Cmakes them slower but clearer
    4. Dincreases both their range and their rate of data transmission
    ( )
29. 29

    Charge of 90 C flows through a lamp in 1.5 minutes. The current is

    1. A60 A
    2. B1.0 A
    3. C135 A
    4. D0.017 A
    ( )
30. 30

    The I–V graph of a diode shows

    1. Aa straight line through the origin
    2. Ba curve that flattens at high voltage
    3. Cno current in one direction and current above a small threshold in the other
    4. Dcurrent proportional to resistance
    ( )
31. 31

    Resistors of 6.0 Ω and 3.0 Ω are connected in parallel. The combined resistance is

    1. A2.0 Ω
    2. B9.0 Ω
    3. C18 Ω
    4. D4.5 Ω
    ( )
32. 32

    A 2.0 kW electric fire is used for 30 minutes. The energy transferred is

    1. A0.5 kW h
    2. B60 kW h
    3. C4.0 kW h
    4. D1.0 kW h
    ( )
33. 33

    A metal case appliance is protected against a live-wire touching the casing by

    1. Athe neutral wire carrying the current away to the sky
    2. Bthe earth wire providing a low-resistance fault path that blows the fuse
    3. Cthe plastic coating on the live wire inside
    4. Dthe switch in the neutral wire
    ( )
34. 34

    Which material is used for the core of an electromagnet that must switch on and off?

    1. ASteel
    2. BCopper
    3. CSoft iron
    4. DAluminium
    ( )
35. 35

    A transformer has 1200 primary turns and 60 secondary turns. With 240 V applied, the output voltage is

    1. A12 V
    2. B4.8 V
    3. C4800 V
    4. D0.05 V
    ( )
36. 36

    An induced e.m.f. in a wire moving through a magnetic field increases when the wire moves

    1. Amore slowly
    2. Bparallel to the field lines
    3. Cin a circle around the field lines
    4. Dfaster across the field lines
    ( )
37. 37

    An alpha particle is

    1. Aan electromagnetic wave
    2. Ba helium nucleus
    3. Ca fast electron
    4. Da hydrogen ion
    ( )
38. 38

    A source has a half-life of 10 years. What fraction of its nuclei remains after 30 years?

    1. Aone third
    2. Bone half
    3. Cone eighth
    4. Done ninth
    ( )
39. 39

    Gamma radiation is chosen to sterilise syringes in sealed packets because gamma rays

    1. Apenetrate the packaging and kill bacteria throughout
    2. Bcannot pass through plastic
    3. Care the least ionising radiation known
    4. Dmake the syringes radioactive
    ( )
40. 40

    The redshift of light from distant galaxies is evidence that

    1. Athe galaxies are approaching us
    2. Bthe galaxies are cooling
    3. Clight slows down in space
    4. Dthe Universe is expanding
    ( )