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Weight, mass and gravity weight Weight is a force caused by gravity. The weight of an object is the gravitational force between the object and the Earth. The more mass the object has the greater its weight will be. Weight is a force, so it's measured in newton's. On the surface of the Earth an object with a mass of 1 kg has a weight of about 10 N Click the link below to find out about why newton's are called newton's. Newton’s mass The mass of an object is the amount of matter or "stuff" it contains. The more matter an object contains, the greater its mass. An elephant contains more matter than a mouse, so it has a greater mass. Mass is measured in kilograms, kg, or grams, g. A 100 kg object has a greater mass than a 5 kg object. Remember an object's mass stays the same wherever it is. gravity All objects have a force that attracts them towards each other. This is called gravity. Even you attract other objects to you because of gravity, but you have too little mass for the force to be very strong. Gravitational force increases when: the masses are bigger the objects are closer Gravity only becomes noticeable when there is a really massive object like a moon, planet or star. We are pulled down towards the ground because of gravity. The gravitational force pulls in the direction towards the centre of the Earth. "Down" is towards the centre of the Earth, wherever you are on the planet. 800 Weight in kg and mass in n 700 600 500 400 300 200 100 0 me friend wieght kg masss n teacher Isaac newton Isaac Newton was born in Wools Thorpe, England on January 4, 1643. His father, was a farmer who was also named Isaac Newton, had died three months before his birth. His mother remarried when Isaac was three years old and left young Isaac in the care of his grandparents. One day Isaac sat under a rosy red apple tree that had been stood there for many years. A few minutes after Isaac got comfy under the tree “bang” an apple fell on his head. That’s when Isaac newton made history he realised the force of gravity… Your own mini experiment Get two objects which weight different weights. Hold them at the same height and then drop them. Which one will land first? Or will they land at the same time? Newton’s Newton's are named after Isaac newton the first person to realise what gravity was. Click on the link to take you back to where you where! weight Thank you for watching