Theory

Orbital Motion, Orbital Speed and Orbital Period

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

Orbital Motion, Orbital Speed and Orbital Period

(a) Explain what is meant by a geostationary orbit .[3] (b) A satellite of mass $m$ is in a circular orbit about a planet. The mass $M$ of the planet...

2013 Summer

Theory

Orbital Motion, Orbital Speed and Orbital Period

(a) A star and a planet are isolated in space. The planet orbits the star in a circular orbit of radius $R$, as illustrated in Figure 1.1. The ang...

2013 Winter

Theory

Orbital Motion, Orbital Speed and Orbital Period

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

Orbital Motion, Orbital Speed and Orbital Period

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

Orbital Motion, Orbital Speed and Orbital Period

(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 that ar...

2017 Summer

Theory

Orbital Motion, Orbital Speed and Orbital Period

(a) Explain why, for changes in vertical position of a point mass near the Earth’s surface, the  gravitational field strength may be consid...

2017 Winter

Theory

Orbital Motion, Orbital Speed and Orbital Period

(a) Explain why, for changes in vertical position of a point mass near the Earth's surface, the gravitational field strength may be considered to be c...

2017 Winter

Theory

Orbital Motion, Orbital Speed and Orbital Period

 A distant star is orbited by several planets. Each planet has a circular orbit with a different radius. (a) Each planet orbits at constant spee...

2018 Summer

Theory

Orbital Motion, Orbital Speed and Orbital Period

(a) A distant star is orbited by several planets. Each planet has a circular orbit with a different radius. (i) Each planet orbits at constant speed....

2018 Summer

MCQ

CH1 - PHYSICAL QUANTITIES & UNITS

A student creates a table to show reasonable estimates of some physical quantities. Which row is not a reasonable estimate? [Table_1]

2017 Summer

MCQ

CH3 - KINEMATICS

A particle travels in a straight line with speed $v$. The particle slows down and changes direction. The new speed of the particle is $\frac{v}{2}$. ...

2017 Summer

MCQ

CH1 - PHYSICAL QUANTITIES & UNITS

The speed $v$ of a liquid leaving a tube depends on the change in pressure $\Delta P$ and the density $\rho$ of the liquid. The speed is given by the ...

2017 Summer

MCQ

CH3 - KINEMATICS

The values of displacement, velocity and acceleration of a vehicle can be deduced from graphs representing its motion. Often the areas under these gra...

2017 Summer

MCQ

CH4 - DYNAMICS

A ball is released from rest above a hard, horizontal surface. The graph shows how the velocity of the bouncing ball varies with time. At which point...

2017 Summer

MCQ

CH3 - KINEMATICS

A ball is kicked upwards at an angle of 45° to horizontal ground. After a short flight, the ball returns to the ground. It may be assumed that ai...

2017 Summer

MCQ

CH4 - DYNAMICS

The mass of a rocket-propelled truck is approximately equal to the mass of the fuel in its tank. The fuel is ignited and the truck is propelled along ...

2017 Summer

MCQ

CH3 - KINEMATICS

An object is dropped at time $t = 0$ from a high building. Air resistance is significant. Three graphs are plotted against time. The height of the...

2017 Summer

MCQ

CH2 - MEASUREMENT TECHNIQUES

A student attempts to find the density $\rho$ of aluminium by taking measurements of a rectangular sheet. mass $m = 51.6 \pm 0.1$ g length $l = 100.0 ...

2017 Summer

MCQ

CH4 - DYNAMICS

The graph shows how the momentum of a motorcycle changes with time. What is the resultant force on the motorcycle? 

2017 Summer