Theory

CH8 - GRAVITATIONAL FIELDS

(a) A spherical planet has diameter $1.2 \times 10^4 \text{ km}$. The gravitational field strength at the surface of the planet is $8.6 \text{ N kg}^{...

2009 Summer

Theory

CH8 - GRAVITATIONAL FIELDS

The Earth may be considered to be a uniform sphere of radius $R$ equal to $6.4 \times 10^6$ m. A satellite is in a geostationary orbit. (a) Describe...

2009 Winter

Theory

CH8 - GRAVITATIONAL FIELDS

The Earth may be considered to be a uniform sphere of radius $6.38 \times 10^{3}$ km, with its mass concentrated at its centre.The Global Positioning ...

2009 Winter

Theory

CH8 - GRAVITATIONAL FIELDS

(a) Explain what is meant by the potential energy of a body. [2] (b) Two deuterium ($^2_1H$) nuclei each have initial kinetic energy $E_K$ and are in...

2010 Summer

Theory

CH8 - GRAVITATIONAL FIELDS

(a) Define gravitational potential at a point.  [2] (b) The Earth may be considered to be an isolated sphere of radius $R$ with its mass concent...

2010 Summer

Theory

CH8 - GRAVITATIONAL FIELDS

(a) Define gravitational field strength.   [1] (b) An isolated star has radius $R$. The mass of the star may be considered to be a point ma...

2010 Winter

Theory

CH8 - GRAVITATIONAL FIELDS

(a) Define gravitational field strength.[1] (b) An isolated star has radius $R$. The mass of the star may be considered to be a point mass at the cen...

2010 Winter

Theory

CH8 - GRAVITATIONAL FIELDS

A planet of mass $m$ is in a circular orbit of radius $r$ about the Sun of mass $M$, as illustrated in Figure 1.1. The magnitude of the angular vel...

2010 Winter

Theory

CH8 - GRAVITATIONAL FIELDS

(a) Newton's law of gravitation applies to point masses. (i) State Newton's law of gravitation. [2]  (ii) Explain why, although the planets and...

2011 Summer

Theory

CH8 - GRAVITATIONAL FIELDS

(a) State what is meant by a \textit{field of force}.  [1] (b) Gravitational fields and electric fields are two examples of fields of force. Sta...

2011 Summer

MCQ

CH1 - PHYSICAL QUANTITIES & UNITS

What is a reasonable estimate of the mass of a raindrop?

2020 Summer

MCQ

CH2 - MEASUREMENT TECHNIQUES

Which quantity is a scalar?

2020 Summer

MCQ

CH2 - MEASUREMENT TECHNIQUES

A galvanometer of resistance 5\(\Omega\) is to be used in a null method.In order to protect the galvanometer from damage due to an excessive initial c...

2020 Summer

MCQ

CH2 - MEASUREMENT TECHNIQUES

Readings are made of the current $I$ for different voltages $V$ across a fixed resistor. The results are plotted on a graph to show the variation of $...

2020 Summer

MCQ

CH3 - KINEMATICS

A stone is dropped from a height of 20 m above water. The graph shows the variation with time of the velocity of the stone. Which statement describ...

2020 Summer

MCQ

CH3 - KINEMATICS

A car X is travelling at a constant speed $u$ along a straight road. At time $t = 0$ a second car Y is a distance $d_0$ behind car X and travelling at...

2020 Summer

MCQ

CH4 - DYNAMICS

The resultant force acting on an object is slowly increased. Which graph could show the variation with time $t$ of the momentum $p$ of the object?&nb...

2020 Summer

MCQ

CH4 - DYNAMICS

An astronaut has a weight of 660 N when she is standing on the Earth's surface. The acceleration of free fall on the surface of Mars is $3.71 \, \tex...

2020 Summer

MCQ

CH4 - DYNAMICS

A mass $m_1$ travelling with speed $u_1$ collides with a mass $m_2$ travelling with speed $u_2$ in the same direction. After the collision, mass $m_1$...

2020 Summer

MCQ

CH4 - DYNAMICS

The diagrams show a negative electric charge situated in a uniform electric field and a mass situated in a uniform gravitational field. Which row s...

2020 Summer