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

Which unit can be expressed in base units as kg m^2 s^{-2}?

2019 Summer

MCQ

CH1 - PHYSICAL QUANTITIES & UNITS

The luminosity $L$ of a star is given by $L = 4\pi r^2 \sigma T^4$ where $r$ is the radius of the star, $T$ is the temperature of the star and $\si...

2019 Summer

MCQ

CH2 - MEASUREMENT TECHNIQUES

A particle has velocity $V$ at an angle $\theta$ to the horizontal. The components of the particle’s velocity are $V_v$ upwards in the vertical dire...

2019 Summer

MCQ

CH14 - WAVES

A whale produces sound waves of frequency 5 Hz. The waves are detected by a microphone and displayed on an oscilloscope. What is the time-base sett...

2019 Summer

MCQ

CH2 - MEASUREMENT TECHNIQUES

The speed shown on a car's speedometer is proportional to the rate of rotation of the tyres. The variation of the diameter of a tyre as it wears intro...

2019 Summer

MCQ

CH3 - KINEMATICS

A car travels along a straight horizontal road. The graph shows the variation of the velocity $v$ of the car with time $t$ for 6.0 s of its journey. ...

2019 Summer

MCQ

CH3 - KINEMATICS

A stone is thrown horizontally from the top of a cliff and falls into the sea some time later. Air resistance is negligible. Which graph shows how th...

2019 Summer

MCQ

CH17 - ELECTRIC FIELDS

A positive charge of $2.6 \times 10^{-8} \text{ C}$ is in a uniform electric field of field strength $300000 \text{ Vm}^{-1}$. How much work must be ...

2019 Summer

MCQ

CH4 - DYNAMICS

Each diagram illustrates a pair of forces of equal magnitude. Which diagram gives an example of a pair of forces that is described by Newton's third ...

2019 Summer

MCQ

CH3 - KINEMATICS

A stone is dropped from a tall building. Air resistance is significant. The variation of distance fallen with time is shown by the dashed line. A sec...

2019 Summer