What is meant by centre of mass GCSE?
The centre of mass of an object (sometimes called the centre of gravity) is the point through which the weight of that object acts. For a symmetrical object of uniform density (such as a symmetrical cardboard shape) the centre of mass is located at the point of symmetry.
What is centre of mass in physics?
The center of mass is a position defined relative to an object or system of objects. It is the average position of all the parts of the system, weighted according to their masses. For simple rigid objects with uniform density, the center of mass is located at the centroid.
What is mass measured in GCSE physics?
Mass is a measure of how much matter there is in an object, while weight is a measure of the size of the pull of gravity on the object. On earth, the downward force of gravity on a 1 kg mass is 10 N. This is called the gravitational field strength (g). A mass of 1 kg has a weight of 10 N.
How does weight affect centre of mass?
The weight of an object may be thought of as acting at a single point called its centre of mass . Depending on the object’s shape, its centre of mass can be inside or outside it. For a given gravitational field strength, the greater the mass of the object, the greater its weight.
What is the equation for center of mass?
The center of mass can be calculated by taking the masses you are trying to find the center of mass between and multiplying them by their positions. Then, you add these together and divide that by the sum of all the individual masses.
Can mass be equal to weight?
The weight of an object is defined as the force of gravity on the object and may be calculated as the mass times the acceleration of gravity, w = mg. You can view the weight as a measure of the mass in kg times the intensity of the gravity field, 9.8 Newtons/kg under standard conditions.