IB DP Physics: SL复习笔记6.2.2 Circular Orbits
Circular Orbits Since most planets and satellites have a near circular orbit, the gravitational force FG between the sun or another planet provides the centripetal force needed to stay in an orbit ...
IB DP Physics: SL复习笔记6.2.1 Newton’s Law of Gravitation
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 mass of...
IB DP Physics: SL复习笔记6.1.4 Applications of Circular Motion
Applications of Circular Motion Horizontal Circular Motion An example of horizontal circular motion is a vehicle driving on a curved road The forces acting on the vehicle are: The friction between ...
IB DP Physics: SL复习笔记6.1.3 Centripetal Acceleration
Centripetal Acceleration For an object moving in a circle: The acceleration is towards the centre of the circle The magnitude of the centripetal acceleration a is: Where: a = centripetal accelerati...
IB DP Physics: SL复习笔记6.1.2 Centripetal Force
Centripetal Force An object moving in a circle is not in equilibrium, it has a resultant force acting upon it This is known as the centripetal force and is what keeps the object moving in a circle ...
IB DP Physics: SL复习笔记6.1.1 Circular Motion
Properties of Circular Motion For an object moving in a circle, it will have the following properties: Period Frequency Angular displacement Angular velocity These properties can be inferred from t...
IB DP Physics: SL复习笔记5.4.4 Solving Problems Involving Magnetic Forces
Solving Problems Involving Magnetic Forces There is a lot of mathematics surrounding magnetism and magnetic forces The key equations are: Force on a current-carrying conductor: F = BIL Force on a m...
IB DP Physics: SL复习笔记5.4.3 Magnetic Force on a Current-Carrying Conductor
Magnetic Force on a Current-Carrying Conductor A current-carrying conductor produces its own magnetic field When interacting with an external magnetic field, it will experience a force A current-ca...
IB DP Physics: SL复习笔记5.4.2 Magnetic Force on a Charge
Magnetic Force on a Charge Calculating Magnetic Force on a Moving Charge The magnetic force on an isolating moving charge, such an electron, is given by the equation: F = BQv sinθ Where: F = force ...
