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

The SI unit for potential difference (the volt) is given, in base units, by

2010 Summer

MCQ

CH1 - PHYSICAL QUANTITIES & UNITS

The product of pressure and volume has the same SI base units as

2010 Summer

MCQ

CH1 - PHYSICAL QUANTITIES & UNITS

An ion is accelerated by a series of electrodes in a vacuum. A graph of the power supplied to the ion is plotted against time.What is represented by t...

2010 Summer

MCQ

CH1 - PHYSICAL QUANTITIES & UNITS

A vector quantity $V$ is resolved into two perpendicular components $X$ and $Y$. The angle between $V$ and component $X$ is $\theta$. The angle betwee...

2010 Summer

MCQ

CH3 - KINEMATICS

The diagram shows a velocity-time graph for a vehicle. The vehicle, moving at 4.0 ms-1, begins to accelerate at time = 0. What is the vehicle's ac...

2010 Summer

MCQ

CH3 - KINEMATICS

A small steel ball falls freely under gravity after being released from rest. Which graph best represents the variation of the height $h$ of the ball...

2010 Summer

MCQ

CH4 - DYNAMICS

Two equal masses travel towards each other on a frictionless air track at speeds of $60 \text{ cm s}^{-1}$ and $40 \text{ cm s}^{-1}$. They stick toge...

2010 Summer

MCQ

CH4 - DYNAMICS

A brick weighing 20 N rests on an inclined plane. The weight of the brick has a component of 10 N parallel with the plane. The brick also experiences ...

2010 Summer

MCQ

CH4 - DYNAMICS

The diagram shows two identical spheres X and Y. Initially, X moves with speed v directly towards Y. Y is stationary. The spheres collide elastical...

2010 Summer

MCQ

CH5 - FORCES, DENSITY & PRESSURE

Forces of 3 N, 4 N and 5 N act at one point on an object. The angles at which the forces act can vary. What is the value of the minimum resultant for...

2010 Summer