Work Done on a Mass When a mass is moved against the force of gravity, work is done The work done in moving a mass?m?is given by: ?W = m?V Where: ?W?= change in work done (J) m?= mass (kg) ?...
Transformations of Trigonometric Functions What transformations of trigonometric functions do I need to know? As with other graphs of functions, trigonometric graphs can be transformed through?tran...
Graphical Representation of Gravitational Potential Gravitational field strength,?gand the gravitational potential,V can be graphically represented against the distance from the centre of a ...
Calculating Gravitational Potential The equation for gravitational potential?V?is defined by the mass?M?and distance?r: Where: V?= gravitational potential (J kg-1) G?=?Newton’s gravitational...
香港中文大學(xué)成立于1963年，為研究型綜合大學(xué)。在2023年QS世界大學(xué)排名中，香港中文大學(xué)排名全球第38位；在2022年泰晤士世界大學(xué)排名中，香港中文大學(xué)排名全球第49位。今天一起來看看2023年香港中文大學(xué)碩士留學(xué)...
Gravitational Potential The gravitational potential energy (G.P.E) is the energy an object has when lifted off the ground given by the familiar equation: G.P.E =?mgΔh The G.P.E on the surfac...
Graphs of Trigonometric Functions What are the graphs of trigonometric functions? The trigonometric functions sin, cos and tan?all have special?periodic graphs You’ll need to know their properties ...
Gravitational Field Strength in a Radial Field The gravitational field strength,?g?at a point describes how?strong or weak a gravitational field is?at that point g?in a?radial?field (such as...
Newton's Law of Gravitation The gravitational force between two bodies outside a uniform field, e.g. between the Earth and the Sun, is defined by Newton’s Law of Gravitation Recall that the ...
Gravitational Field Lines The direction of a gravitational field is represented by gravitational field lines The gravitational field lines around a point mass are?radially inwards The gravit...
Trigonometry Exact Values What are exact values in trigonometry? For certain angles the values of sin?θ, cos?θ?and tan?θ?can be written?exactly This means using fractions and surds You should be fa...
Gravitational Force There is a universal force of attraction between all matter with?mass This force is known as the ‘force due to gravity’ or the weight The Earth’s gravitational fie...
