1. Motion, forces and energy

1.1 Physical quantities and measurement techniques

1.2 Motion

1.3 Mass and weight

1.4 Density

1.5.1 Effects of forces

1.5.2 Turning effect of forces

1.5.3 Centre of gravity

1.6 Momentum

1.7.1 Energy

1.7.2 Work

1.7.3 Energy resources

1.7.4 Power

1.8 Pressure

2. Thermal physics

2.1.1 States of matter

2.1.2 Particle model

2.1.3 Gases and the absolute scale of temperature

2.2.1 Thermal expansion of solids, liquids and gases

2.2.2 Specific heat capacity

2.2.3 Melting, boiling and evaporation

2.3.1 Conduction

2.3.2 Convection

2.3.3 Radiation

2.3.4 Consequences of thermal energy transfer

3. Waves

3.1 General properties of waves

3.2.1 Reflection of light

3.2.2 Refraction of light

3.2.3 Thin lenses

3.2.4 Dispersion of light

3.3 Electromagnetic spectrum

3.4 Sound

4. Electricity and magnetism

4.1 Simple phenomena of magnetism

4.2.1 Electric charge

4.2.2 Electric current

4.2.3 Electromotive force and potential difference

4.2.4 Resistance

4.2.5 Electrical energy and electrical power

4.3.1 Circuit diagrams and circuit components

4.3.2 Series and parallel circuits

4.3.3 Action and use of circuit components

4.4 Electrical safety

4.5.1 Electromagnetic induction

4.5.2 The a.c. generator

4.5.3 Magnetic effect of a current

4.5.4 Force on a current-carrying conductor

4.5.5 The d.c. motor

4.5.6 The transformer

5. Nuclear physics

5.1.1 The atom

5.1.2 The nucleus

5.2.1 Detection of radioactivity

5.2.2 The three types of nuclear emission

5.2.3 Radioactive decay

5.2.4 Half-life

5.2.5 Safety precautions

6. Space physics

6.1.1 The Earth

6.1.2 The Solar System

6.2.1 The Sun as a star

6.2.2 Stars

6.2.3 The Universe

IGCSE Physics 4.3.2 Series and parallel circuits Question Bank

[Maximum number: 1]

Fig. 2.1 shows solar-powered traffic warning lights.

Fig. 2.1

The energy from the solar cell is stored in a battery.

(a)

The two lights in Fig. 2.1 are connected in parallel.

State one advantage of a parallel connection in a lighting circuit.

[ 1 ]

(a)

Fig. 6.2 shows an electric circuit.

Fig. 6.2

[ 3 ]

(i)

Calculate the reading on the voltmeter.
voltmeter reading =

[ 2 ]

(ii)

Determine the current in the $2.1 \Omega$ resistor.

current =

[ 1 ]

(iii)

Determine the reading on the ammeter.

ammeter reading =

[Maximum number: 1]

A student has two resistors.
One resistor has a resistance of $2.0 \Omega$ and the other has a resistance of $40 \mathrm{k} \Omega$ .
Which statement is correct?

When connected in parallel, the combined resistance is $1.9 \Omega$ .

When connected in parallel, the combined resistance is $2.0 \Omega$ .

When connected in series, the combined resistance is $1.9 \Omega$ .

When connected in series, the combined resistance is $42 \Omega$ .

[Maximum number: 1]

The circuit shown contains three switches and four lamps P, Q, R and S.

Which switches must be closed to light only lamps P and R ?

switch 1 only

switch 1 and switch 2

switch 1 and switch 3

switch 2 and switch 3

[Maximum number: 1]

Two lamps are connected in parallel.

Which switches must be closed so that both lamps light?

$S_{1}$ and $S_{2}$ only

$S_{1}$ and $S_{3}$ only

$S_{2}$ and $S_{3}$ only

$\mathrm{S}_{1}, \mathrm{~S}_{2}$ and $\mathrm{S}_{3}$

[Maximum number: 1]

The circuit diagram shows two identical lamps connected in parallel to a cell. Three ammeters, X, Y and Z, are also connected in the circuit, as shown.

Which statement about the current in X is correct?

It is equal to the current in Y and to the current in Z .

It is less than either the current in Y or the current in Z .

It is equal to the sum of the current in Y and the current in Z .

It is equal to the difference between the current in Y and the current in Z .

[Maximum number: 1]

The diagram shows part of a circuit.

What is the combined resistance of the resistors?

$0.14 \Omega$

$0.57 \Omega$

$1.7 \Omega$

$7.0 \Omega$

[Maximum number: 1]

The diagram shows a circuit containing two resistors of resistance $1.0 \Omega$ and $2.0 \Omega$ .
A voltmeter is connected across the $1.0 \Omega$ resistor by connecting P to X.
The reading on the voltmeter is 6.0 V .

P is moved to point Y in the circuit.
What is the new reading on the voltmeter?

$3.0 \mathrm{~V}$

6.0 V

12 V

$18 \mathrm{~V}$

[Maximum number: 1]

The diagram shows a lamp in a circuit.

Which change to the circuit would increase the current in the lamp?

adding another resistor in parallel with the one in the circuit

adding another resistor in series with the one in the circuit

decreasing the electromotive force (e.m.f.) of the battery in the circuit

moving the lamp to point P in the circuit

[Maximum number: 1]

The diagram shows a lamp in a circuit.

Which change to the circuit would increase the current in the lamp?

adding another resistor in parallel with the one in the circuit

adding another resistor in series with the one in the circuit

decreasing the electromotive force (e.m.f.) of the battery in the circuit

moving the lamp to point P in the circuit

0 selected

Question 2

Question 2(b)

Question 6

Question 6(b)

Question 6(b)(i)

Question 6(b)(iii)

Question 6(b)(iv)

Question 28

Question 28

Question 28

Question 28

Question 28

Question 28

Question 29

Question 29