Theory

CH10 - ELECTRON AND ELECTRONICS

Fig. 11.1 shows an electron beam about to enter, at point A, the electric field between two charged metal plates.![Fig. 11.1](attachment://electron_be...

2012 Summer

3

Theory

CH10 - ELECTRON AND ELECTRONICS

Fig. 11.1 shows a cathode-ray tube connected to external voltage supplies and switches. The terminals labelled H.T. are connected to a high voltage so...

2011 Summer

3

Theory

CH10 - ELECTRON AND ELECTRONICS

Fig. 11.1 represents a cathode-ray tube containing a number of different parts. There are empty boxes connected to four of the parts. These boxes are ...

2009 Summer

2

Theory

CH10 - ELECTRON AND ELECTRONICS

Fig. 11.1 shows a tube that can be used to produce cathode rays. Metal plates above and below the tube have zero potential difference between them. (a...

2011 Winter

3

Theory

CH10 - ELECTRON AND ELECTRONICS

Fig. 12.1 shows parts of a tube in which cathode rays are produced.(a) What occupies the remaining space within the tube? Tick one box.air [ ]hydrogen...

2012 Winter

3

Theory

CH10 - ELECTRON AND ELECTRONICS

Fig. 11.1 shows a tube for producing cathode rays, connected to two voltage supplies and switches.(a) Which switch has to be closed in order to make t...

2011 Summer

3

Theory

CH10 - ELECTRON AND ELECTRONICS

(a) Complete Fig. 11.2 so that it shows a circuit that will cause the bell to ring when the magnet is taken away. [2] (b) Fig. 11.3 shows a door in a ...

2010 Winter

2

Theory

CH10 - ELECTRON AND ELECTRONICS

(a) State what is meant by \textit{thermionic emission}..................................................................................................

2010 Summer

3

Theory

CH10 - ELECTRON AND ELECTRONICS

Fig. 10.1 is a simplified drawing of a tube for producing, deflecting and detecting cathode rays.The cathode rays are represented by the broken line i...

2014 Winter

3

Theory

CH10 - ELECTRON AND ELECTRONICS

A camera has a circuit containing a light-dependent resistor (LDR). Fig. 10.1 shows part of this circuit. (a) Describe what happens to the resistance ...

2015 Winter

3

MCQ

CH1 - MEASUREMENTS AND UNITS

A digital stop-clock measures time in minutes and seconds. The stop-clock reads 00:50 when it is started (i.e. 00 minutes 50 seconds). It reads 02:10 ...

2019 Summer

3

MCQ

CH2 - FORCES AND MOTION

A long-distance runner wishes to calculate her average speed for a race.Which calculation should she use?

2019 Summer

3

MCQ

CH2 - FORCES AND MOTION

A heavy metal ball falls vertically downwards through air past four equally spaced levels J, K, L and M.The times taken to fall from one level to the ...

2019 Summer

3

MCQ

CH2 - FORCES AND MOTION

An arrow travels horizontally in a straight line at constant speed. In which direction does the weight act?

2019 Summer

2

MCQ

CH1 - MEASUREMENTS AND UNITS

Two rectangular blocks consist of different materials.Four different methods are suggested to compare the two masses.1 Compare the accelerations with ...

2019 Summer

2

MCQ

CH1 - MEASUREMENTS AND UNITS

The diagrams show four solid blocks with their dimensions and masses.Which block has the greatest density?

2019 Summer

3

MCQ

CH2 - FORCES AND MOTION

A mass of 20 kg is held stationary by a rope passing over a frictionless pulley. What is the tension $T$ in the rope?

2019 Summer

3

MCQ

CH3 - FORCES AND PRESSURE

A spring is suspended from a stand. Loads are added and the extensions are measured. Which graph shows the result of plotting extension against loa...

2019 Summer

6

MCQ

CH3 - FORCES AND PRESSURE

A wooden bar is pivoted at its centre so that it can rotate freely. Two equal forces $F$ are applied to the bar.In which diagram is the turning effect...

2019 Summer

2

MCQ

CH4 - FORCES AND ENERGY

A machine is very efficient. What does this mean?

2019 Summer

3