Theory

CH11 - ATOMS AND RADIOACTIVITY

A radioactive nucleus contains 138 neutrons. The nucleus emits an \( \alpha \)-particle. How many neutrons are in the nucleus after it has emitted th...

2009 Summer

Theory

CH11 - ATOMS AND RADIOACTIVITY

The graph shows the decay curve for one particular radioactive nuclide. What is the half-life of this nuclide? A. 1.0 day B. 1.5 days C. 2.0 days D. ...

2009 Summer

Theory

CH11 - ATOMS AND RADIOACTIVITY

$^{16}_{7}\text{N}$ is the symbol for a particular nuclide of nitrogen. How many nucleons does this nuclide contain? A 7 B 9 C 16 D 23

2009 Summer

Theory

CH11 - ATOMS AND RADIOACTIVITY

A beam of ionising radiation, containing $\alpha$-particles, $\beta$-particles and $\gamma$-rays, is travelling left to right across the page. A magne...

2009 Summer

Theory

CH11 - ATOMS AND RADIOACTIVITY

Which statement explains the meaning of the half-life of a radioactive substance?A half the time taken for half the substance to decayB half the time ...

2009 Winter

Theory

CH11 - ATOMS AND RADIOACTIVITY

The diagram shows the paths of three different types of radiation, X, Y and Z. Which row in the table correctly identifies X, Y and Z?[Table_1]

2009 Winter

Theory

CH11 - ATOMS AND RADIOACTIVITY

How many neutrons and how many protons are contained in a nucleus of $^{238}_{92}\text{U}$?[Table_1]neutrons | protonsA | 92 | 146B | 146 | 92C | 146 ...

2009 Winter

Theory

CH11 - ATOMS AND RADIOACTIVITY

How many neutrons and how many protons are contained in a nucleus of $^{238}_{92}$U?[Table_1]

2009 Winter

Theory

CH11 - ATOMS AND RADIOACTIVITY

Which statement explains the meaning of the half-life of a radioactive substance?A. half the time taken for half the substance to decayB. half the tim...

2009 Winter

Theory

CH11 - ATOMS AND RADIOACTIVITY

The diagram shows the paths of three different types of radiation, X, Y and Z.Which row in the table correctly identifies X, Y and Z?[Table_1]| | X ...

2009 Winter

MCQ

CH1 - MEASUREMENTS AND UNITS

The diagram shows an enlarged drawing of the end of a metre rule. It is being used to measure the length of a small feather. What is the length of th...

2016 Summer

MCQ

CH2 - FORCES AND MOTION

The speed-time graph shown is for a car moving in a straight line. What is the acceleration of the car when the time is 40s?

2016 Summer

MCQ

CH2 - FORCES AND MOTION

Two runners take part in a race. The graph shows how the speed of each runner changes with time. What does the graph show about the runners at time $t...

2016 Summer

MCQ

CH2 - FORCES AND MOTION

A satellite orbits the Earth above the atmosphere at a constant speed. The diagram shows the satellite at one point in its circular orbit around the E...

2016 Summer

MCQ

CH2 - FORCES AND MOTION

A cup contains hot liquid.Some of the liquid evaporates.What happens to the mass and what happens to the weight of the liquid in the cup?[Table_1]

2016 Summer

MCQ

CH3 - FORCES AND PRESSURE

The diagrams show three uniform beams P, Q, and R, each pivoted at its centre. The two forces acting on each beam are also shown. Which beams rotate c...

2016 Summer

MCQ

CH2 - FORCES AND MOTION

An object of mass 50 kg accelerates from a velocity of 2.0 m/s to a velocity of 10 m/s in the same direction.What is the impulse provided to cause thi...

2016 Summer

MCQ

CH2 - FORCES AND MOTION

A scalar quantity has

2016 Summer

MCQ

CH4 - FORCES AND ENERGY

Energy is released in some nuclear reactions. Which nuclear reaction takes place in a nuclear power station, and which nuclear reaction takes place in...

2016 Summer

MCQ

CH4 - FORCES AND ENERGY

A lorry of mass 4000 kg is travelling at a speed of 4.0 m/s. A car has a mass of 1000 kg. The kinetic energy of the car is equal to the kinetic energ...

2016 Summer