Theory

CH19 - CURRENT OF ELECTRICITY

Lightning occurs when charge builds up in the atmosphere, creating a potential difference between the ground and the atmosphere. During a lightning s...

2024 Summer

4

Theory

CH19 - CURRENT OF ELECTRICITY

(a) State Kirchhoff’s second law.......................................................................................................................

2024 Summer

5

Theory

CH19 - CURRENT OF ELECTRICITY

(a) (i) State Kirchhoff’s second law...................................................................................................................

2024 Summer

8

Theory

CH19 - CURRENT OF ELECTRICITY

(a) State what is meant by the work done by a force......................................................................................................

2024 Winter

7

Theory

CH19 - CURRENT OF ELECTRICITY

(a) Define electric potential difference (p.d.). [1] (b) A power supply, three resistors and a component X are connected in the circuit shown The ...

2024 Winter

5

Theory

CH19 - CURRENT OF ELECTRICITY

(a) Define resistance. .................................................................................................................................

2024 Winter

6

MCQ

CH19 - CURRENT OF ELECTRICITY

What is the definition of potential difference across a component?

2024 Summer

5

MCQ

CH19 - CURRENT OF ELECTRICITY

The diagram shows a cell of negligible internal resistance connected to a switch and two resistors of resistances $R$ and $2R$.The circuit also contai...

2024 Summer

4

MCQ

CH19 - CURRENT OF ELECTRICITY

The $I-V$ characteristics for four components, A, B, C and D, are shown. Which component has the greatest resistance when the potential difference acr...

2024 Summer

4

MCQ

CH19 - CURRENT OF ELECTRICITY

A cylindrical wire has cross-sectional area $A$ and number density of free electrons $n$. The wire has current $I$ and the free electrons have average...

2024 Summer

3

Theory

CH1 - PHYSICAL QUANTITIES & UNITS

(a) State what is meant by a $\text{scalar}$ quantity and by a $\text{vector}$ quantity. [2] (b) Complete Fig. 1.1 to indicate whether each of t...

2018 Summer

2

Theory

CH3 - KINEMATICS

(a) State what is meant by the mass of a body. [1] (b) Two blocks travel directly towards each other along a horizontal, frictionless surface. T...

2018 Summer

3

Theory

CH14 - WAVES

(a) For a progressive wave, state what is meant by (i) the period,   [1] (ii) the wavelength.   [1] (b) Fig. 4.1 shows the vari...

2018 Summer

2

Theory

CH14 - WAVES

(a) When monochromatic light is incident normally on a diffraction grating, the emergent light waves have been diffracted and are coherent. Explain w...

2018 Summer

2

Theory

CH19 - CURRENT OF ELECTRICITY

(a) Define the volt............................................................................................................... [1](b) A battery of...

2018 Summer

2

Theory

CH17 - ELECTRIC FIELDS

A $\beta^{-}$ particle from a radioactive source is travelling in a vacuum with kinetic energy 460 eV. The particle enters a uniform electric field at...

2018 Summer

3

Theory

CH1 - PHYSICAL QUANTITIES & UNITS

(a) Define force. .....................................................................................................................[1] (b) State...

2018 Summer

3

Theory

CH3 - KINEMATICS

(a) State the principle of conservation of momentum. [2] (b) A stationary firework explodes into three different fragments that move in a horizontal ...

2018 Summer

3

Theory

CH3 - KINEMATICS

A child on a sledge slides down a steep hill and then travels in a straight line up an ice-covered slope, as illustrated in Fig. 3.1. The sledge pa...

2018 Summer

3

Theory

CH14 - WAVES

(a) (i) Define the wavelength of a progressive wave.   [1] (ii) State what is meant by an antinode of a stationary wave.   [1] (...

2018 Summer

3