Theory

CH7 - MOTION IN A CIRCLE

A vertical peg is attached to the edge of a horizontal disc of radius $r$, as shown in Fig. 4.1. The disc rotates at constant angular speed $\omega...

2009 Summer

Theory

CH7 - MOTION IN A CIRCLE

(a) Define the radian.  [2] (b) A stone of weight 3.0 N is fixed, using glue, to one end P of a rigid rod CP, as shown in Fig. 1.1. The rod i...

2010 Summer

Theory

CH7 - MOTION IN A CIRCLE

(a) A moon is in a circular orbit of radius $r$ about a planet. The angular speed of the moon in its orbit is $\omega$. The planet and its moon may be...

2011 Winter

Theory

CH7 - MOTION IN A CIRCLE

(a) A moon is in a circular orbit of radius $r$ about a planet. The angular speed of the moon in its orbit is $\omega$. The planet and its moon may be...

2011 Winter

Theory

CH7 - MOTION IN A CIRCLE

The mass $M$ of a spherical planet may be assumed to be a point mass at the centre of the planet. (a) A stone, travelling at speed $v$, is in a circ...

2014 Summer

Theory

CH7 - MOTION IN A CIRCLE

(a) Define the radian. [2] (b) A telescope gives a clear view of a distant object when the angular displacement between the edges of the object ...

2014 Summer

Theory

CH7 - MOTION IN A CIRCLE

A large bowl is made from part of a hollow sphere. A small spherical ball is placed inside the bowl and is given a horizontal speed. The ball follows...

2014 Winter

Theory

CH7 - MOTION IN A CIRCLE

A binary star consists of two stars A and B that orbit one another, as illustrated in Fig. 1.1. The stars are in circular orbits with the centres o...

2016 Summer

Theory

CH7 - MOTION IN A CIRCLE

(a) By reference to the definition of gravitational potential, explain why gravitational potential is a negative quantity. [2] (b) Two stars A and B ...

2016 Summer

Theory

CH7 - MOTION IN A CIRCLE

(a) Explain how a satellite may be in a circular orbit around a planet.  [2] (b) The Earth and the Moon may be considered to be uniform spheres ...

2017 Summer

MCQ

CH1 - PHYSICAL QUANTITIES & UNITS

Which quantity with its unit is correct?

2016 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, $\sig...

2016 Summer

MCQ

CH1 - PHYSICAL QUANTITIES & UNITS

The diagram shows two vectors X and Y, drawn to scale. If X = Y − Z, which diagram best represents the vector Z?

2016 Summer

MCQ

CH2 - MEASUREMENT TECHNIQUES

The diagram shows a cathode-ray oscilloscope (c.r.o.) being used to measure the rate of rotation of a flywheel.The flywheel has a small magnet M mount...

2016 Summer

MCQ

CH2 - MEASUREMENT TECHNIQUES

A student determines the density $\rho$ of steel by taking measurements from a steel wire. mass $m = 6.2 \pm 0.1 \text{ g}$ length $l = 25.0 \pm 0.1 \...

2016 Summer

MCQ

CH3 - KINEMATICS

The acceleration of free fall on the Moon is $1.6 \, \text{m}\,\text{s}^{-2}$. The Moon has no atmosphere. An astronaut standing on the surface of the...

2016 Summer

MCQ

CH3 - KINEMATICS

A tennis ball is released from rest at the top of a tall building. Which graph best represents the variation with time $t$ of the acceleration $a$ of ...

2016 Summer

MCQ

CH3 - KINEMATICS

The graph shows how the velocity $v$ of an object moving in a straight line varies with time $t$ from $t = 0$ to $t = T$. Which graph represents th...

2016 Summer

MCQ

CH4 - DYNAMICS

A ball falls vertically onto horizontal ground and rebounds, as shown. The ball has momentum $p_1$ downwards just before hitting the ground. After ...

2016 Summer

MCQ

CH4 - DYNAMICS

A sphere falls from rest through the air. The graph shows the variation with time of the sphere’s velocity. Which diagram shows the forces ac...

2016 Summer