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1

The diameter and the length of a thin wire, approximately 1 m in length, are measured as accurately as possible. What are the best instruments to use?

3. Waves  →  3.2.3. Thin lenses

1. Motion, forces and energy  →  1.1. Physical quantities and measurement techniques

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2

A quantity is quoted as having a value of 6.2 ms. In what units is it measured?

4. Electricity and magnetism  →  4.2.2. Electrical current

1. Motion, forces and energy  →  1.2. Motion

5. Nuclear physics  →  5.2.1. Detection of radioactivity

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3

The graph shows part of a journey made by a cyclist. time / s speed m / s How far did the cyclist travel in 7 s?

1. Motion, forces and energy  →  1.2. Motion

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4

The propeller on a boat pushes water backwards with a force of 2000 N. The boat moves through the water against a total resistive force of 1800 N. direction of motion of boat 1800 N 2000 N resistive force on boat force on water due to propeller According to Newton’s third law, what is the forward force on the propeller due to the water?

1. Motion, forces and energy  →  1.5.1. Balanced and unbalanced forces

4. Electricity and magnetism  →  4.5.4. Forces on a current-carrying conductor

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5

The diagrams show a parachutist in four positions after she jumps from a high balloon. At which position does she have terminal velocity?

1. Motion, forces and energy  →  1.5.2. Friction

1. Motion, forces and energy  →  1.2. Motion

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6

An engine pulls a truck at constant speed on a level track. engine truck track link The link between the truck and the engine breaks. The driving force on the engine remains constant. What effect does this have on the truck and on the engine?

1. Motion, forces and energy  →  1.5.2. Friction

1. Motion, forces and energy  →  1.2. Motion

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7

The weight of a stone is found using a newton meter, and its mass is found using a pan balance. stone stone newton meter pan balance The experiment is carried out on the Earth and on the Moon. For each meter, is its reading the same or different on the Earth and on the Moon?

1. Motion, forces and energy  →  1.3. Mass and weight

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8

The extension of a spring is measured as weights are added. The graph shows the results. Which point is the spring’s limit of proportionality?

1. Motion, forces and energy  →  1.5.3. Elastic deformation

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9

A metal cone with a circular base is placed on a flat surface. The stability of the cone depends on A its weight only. B the diameter of its base and the position of its centre of mass. C the diameter of its base only. D the position of its centre of mass only.

1. Motion, forces and energy  →  1.5.6. Centre of gravity

1. Motion, forces and energy  →  1.5.5. Turning effect of forces

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10

The efficiency of an electrical generator is 65 %. The energy input to the generator is 12 kJ. What is the useful energy output?

1. Motion, forces and energy  →  1.7.4. Efficiency

1. Motion, forces and energy  →  1.7.3. Energy resources

4. Electricity and magnetism  →  4.4.1. Uses of electricity

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11

Coal is burned as fuel to heat water in a boiler, producing steam. The steam drives a turbine, which is connected to an electric generator. In which order do the major energy transformations take place?

1. Motion, forces and energy  →  1.7.3. Energy resources

1. Motion, forces and energy  →  1.7.1. Energy

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12

A crane moves its load diagonally, as shown...

1. Motion, forces and energy  →  1.7.1. Energy

1. Motion, forces and energy  →  1.7.2. Work

1. Motion, forces and energy  →  1.5.3. Elastic deformation

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13

The diagram shows two identical pieces of apparatus. One is filled with water and the other is filled with mercury. Water is less dense than mercury. At which point is the liquid pressure greatest?

1. Motion, forces and energy  →  1.8. Pressure

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14

Objects with different weights are placed on a rigid, horizontal surface. Which row shows the correct pressure acting on the surface?

1. Motion, forces and energy  →  1.8. Pressure

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15

How does heat transfer through a vacuum take place?

2. Thermal physics  →  2.3.3. Radiation

2. Thermal physics  →  2.3.4. Consequences of thermal energy transfer

2. Thermal physics  →  2.3.2. Convection

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16

Which row explains why a liquid has a fixed volume but does not have a fixed shape?

1. Motion, forces and energy  →  1.8. Pressure

1. Motion, forces and energy  →  1.4. Density

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17

To raise the temperature of a 2.0 kg block of metal by 20 °C, energy of 5.2 kJ is needed. What is the value of the specific heat capacity of the metal?

2. Thermal physics  →  2.2.2. Specific heat capacity

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18

What makes a clinical thermometer suitable for measuring small changes in body temperature?

2. Thermal physics  →  2.2.1. Thermal expansion of solids, liquids and gases

2. Thermal physics  →  2.2.2. Specific heat capacity

1. Motion, forces and energy  →  1.1. Physical quantities and measurement techniques

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19

Substances can change from one state to another as shown...

2. Thermal physics  →  2.2.3. Melting, boiling and evaporation

2. Thermal physics  →  2.1.1. States of matter

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20

How do the speed and the wavelength of red light in air compare with the speed and the wavelength of violet light in air?

3. Waves  →  3.2.4. Dispersion of light

3. Waves  →  3.3. Electromagnetic spectrum

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21

A ray of light enters a glass block at an angle of incidence i, producing an angle of refraction r in the glass. glass block r i Several different values of i and r are measured, and a graph is drawn of sin i against sin r. Which graph is correct?

3. Waves  →  3.2.2. Refraction of light

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22

A boy stands beside a girl in front of a large plane mirror. They are both the same distance from the mirror, as shown...

3. Waves  →  3.2.1. Reflection of light

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23

A student uses a spring to demonstrate waves. He moves the spring with his hand. spring placed on bench Which diagram demonstrates the type of wave produced by a source of sound?

3. Waves  →  3.4. Sound

3. Waves  →  3.1. General properties of waves

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24

The diagram shows the main sections of the electromagnetic spectrum in order of increasing frequency. Some of the sections are labelled. radio waves R light gamma- rays increasing frequency The section R has a frequency just below that of light. Which application uses the section R?

3. Waves  →  3.3. Electromagnetic spectrum

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25

The diagram shows an alarm system. iron core pivot iron armature bell battery P What happens when battery P is disconnected?

4. Electricity and magnetism  →  4.4.2. Electrical safety

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26

Waveforms are shown...

3. Waves  →  3.1. General properties of waves

3. Waves  →  3.4. Sound

4. Electricity and magnetism  →  4.6. Uses of an oscilloscope

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27

Two metal spheres X and Y are on insulating bases. Both spheres are negatively charged. X insulating base – – – – – – – – Y – – – – – – – – Sphere X is moved towards sphere Y until they almost touch. Which diagram shows the final pattern of charges?

4. Electricity and magnetism  →  4.2.1. Electrical charge

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28

The resistance of a cylindrical wire P is 80 Ω. 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. wire P wire Q What is the resistance of Q?

4. Electricity and magnetism  →  4.2.4. Resistance

4. Electricity and magnetism  →  4.3.2. Series and parallel circuits

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29

A lamp, designed to work at 1.5 V, is connected to a cell of electromotive force (e.m.f.) 1.5 V. The lamp lights at normal brightness. The lamp is now connected to four similar cells, each of e.m.f. 1.5 V, arranged in parallel. What is the effect of connecting the extra cells in this way?

4. Electricity and magnetism  →  4.2.3. Electromotive force and potential difference

4. Electricity and magnetism  →  4.2.4. Resistance

4. Electricity and magnetism  →  4.4.1. Uses of electricity

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30

The current in a filament lamp is 0.25 A when working normally. The lamp is connected to a plug and the mains a.c. supply. When the lamp is switched on, it does not light. What is a possible cause for this?

4. Electricity and magnetism  →  4.4.2. Electrical safety

4. Electricity and magnetism  →  4.2.4. Resistance

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31

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

4. Electricity and magnetism  →  4.4.2. Electrical safety

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32

The diagram shows a potential divider system of two resistors connected to a 6.0 V power supply. V +6.0 V 0 V 2000 Ω 10 000 Ω What is the reading on the voltmeter?

4. Electricity and magnetism  →  4.3.3. Action and use of circuit components

4. Electricity and magnetism  →  4.2.3. Electromotive force and potential difference

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33

In the circuit shown...

4. Electricity and magnetism  →  4.4.2. Electrical safety

4. Electricity and magnetism  →  4.2.4. Resistance

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34

Two parallel wires carry currents in the same direction. Which diagram shows the magnetic field around each wire and the direction of the force on each wire?

4. Electricity and magnetism  →  4.5.4. Forces on a current-carrying conductor

4. Electricity and magnetism  →  4.5.3. Magnetic effect of a current

4. Electricity and magnetism  →  4.1. Simple magnetism and magnetic fields

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35

The diagrams show three electrical devices, X, Y and Z. N S N N S S X Y Z rotation rotation rotation coil coil coil soft iron axis cylindrical magnet Which devices provide an alternating current (a.c.) output?

4. Electricity and magnetism  →  4.5.2. The a.c. generator

4. Electricity and magnetism  →  4.5.5. The d.c. motor

4. Electricity and magnetism  →  4.2.2. Electrical current

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36

One component of a simple d.c. motor is a split-ring commutator. Which metal is used to make the commutator, and why is this metal chosen?

4. Electricity and magnetism  →  4.5.5. The d.c. motor

4. Electricity and magnetism  →  4.5.2. The a.c. generator

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37

A small coil is connected to a galvanometer G, as shown...

4. Electricity and magnetism  →  4.5.5. The d.c. motor

4. Electricity and magnetism  →  4.5.3. Magnetic effect of a current

4. Electricity and magnetism  →  4.5.4. Forces on a current-carrying conductor

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38

One isotope of carbon is C . How many neutrons and protons does each atom of this isotope contain?

5. Nuclear physics  →  5.1.2. The nucleus

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39

The isotope barium-140 has a half-life of 13 days. A sample of this isotope is kept for 13 days. Which quantity halves during this time?

5. Nuclear physics  →  5.1.2. The nucleus

5. Nuclear physics  →  5.2.5. Half-life

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40

In a laboratory experiment, particles from a radioactive source are deviated by a magnetic field and reach a detector. 10 cm magnetic field into the paper radioactive source detector Which particles are deviated and reach the detector?

5. Nuclear physics  →  5.2.1. Detection of radioactivity

5. Nuclear physics  →  5.2.2. The three types of emission

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