Theory

CH10 - ELECTRON AND ELECTRONICS

In a cathode-ray tube, a hot tungsten cathode releases particles by thermionic emission.What are these particles?A. $\alpha$-particlesB. electronsC. p...

2009 Summer

Theory

CH10 - ELECTRON AND ELECTRONICS

The diagram shows a cathode-ray tube. A student wants the cathode rays to make a spot at P on the screen. Which parts of the cathode-ray tube should...

2009 Summer

Theory

CH10 - ELECTRON AND ELECTRONICS

The diagram shows a beam of cathode rays entering an electric field.In which direction is the beam deflected by the field?A downwardB upwardC into the...

2009 Winter

Theory

CH10 - ELECTRON AND ELECTRONICS

To create cathode rays in a vacuum, what might be a suitable potential difference to connect between the cathode and anode? A. 6V a.c. B. 6V d.c. C...

2009 Winter

Theory

CH10 - ELECTRON AND ELECTRONICS

The diagram shows a beam of cathode rays entering an electric field. In which direction is the beam deflected by the field? A. downwards B. upward...

2009 Winter

Theory

CH10 - ELECTRON AND ELECTRONICS

To create cathode rays in a vacuum, what might be a suitable potential difference to connect between the cathode and anode?A. 6V a.c.B. 6V d.c.C. 600V...

2009 Winter

Theory

CH10 - ELECTRON AND ELECTRONICS

Fig. 11.1 is a schematic diagram of an electronic circuit controlling a lamp.(a) State the names of the logic gates A and B.A ...........................

2009 Winter

Theory

CH10 - ELECTRON AND ELECTRONICS

Fig. 11.1 is an electronic circuit controlling an electric heater.The relay contacts close when there is a current in the relay coil.(a) State the nam...

2009 Winter

Theory

CH10 - ELECTRON AND ELECTRONICS

A cathode-ray tube has an anode and an earthed cathode.Which row shows the charge on the anode and the temperature of the cathode?[Table_1]Table 1:| ...

2010 Summer

Theory

CH10 - ELECTRON AND ELECTRONICS

A cathode-ray tube has an anode and an earthed cathode.Which row shows the charge on the anode and the temperature of the cathode?[Table_1] | | anod...

2010 Summer

MCQ

CH1 - MEASUREMENTS AND UNITS

Which measuring devices are most suitable for determining the length of a swimming pool and the thickness of aluminium foil? [Table_1]

2022 Summer

MCQ

CH2 - FORCES AND MOTION

A man stands next to a railway track.A train travelling at 40 m/s takes 2.0 s to pass the man.What is the length of the train?

2022 Summer

MCQ

CH2 - FORCES AND MOTION

A speed–time graph is used to describe the motion of an object. Which quantities are calculated from the gradient of the graph and from the area un...

2022 Summer

MCQ

CH2 - FORCES AND MOTION

On the Moon, all objects fall with the same acceleration. Which statement explains this?

2022 Summer

MCQ

CH3 - FORCES AND PRESSURE

A measuring cylinder contains 30 cm³ of a liquid.Some more of the liquid is added until the liquid level reaches the 50 cm³ mark. The reading on the...

2022 Summer

MCQ

CH2 - FORCES AND MOTION

An object on the end of a string moves in a clockwise circular path at constant speed. The diagram shows the object as viewed from above. What is the ...

2022 Summer

MCQ

CH2 - FORCES AND MOTION

A beam is pivoted at one end, as shown. The beam weighs 6.0 N and its weight acts at a point X 40 cm from the pivot. A force of 4.0 N is applied to th...

2022 Summer

MCQ

CH2 - FORCES AND MOTION

On the diagram shown, what is the magnitude of the resultant force of the two vectors?[Image: A diagram with two vectors; one vector of 6.0 N upwards ...

2022 Summer

MCQ

CH2 - FORCES AND MOTION

Three situations are listed.1. An object has a resultant force acting on it.2. A moving object experiences an impulse.3. An object is decelerating.In ...

2022 Summer

MCQ

CH2 - FORCES AND MOTION

A ball of mass 0.16 kg is moving forwards at a speed of 0.50 m/s. A second ball of mass 0.10 kg is stationary. The first ball strikes the second ball....

2022 Summer