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Science:Forces (Friction (Friction is the force between two objects…
Science:Forces
Friction
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We can increase friction with certain materials, for example rubber
Friction is not always useful for example when a bicycle has to much friction on its axle its very hard to ride.
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Weight
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if a bag of apples has a mass of 2kg, it's weight on earth will be 20N (Multiply 2 kg by 10)
if you went to the moon where the gravity is not as strong, its mass would still be 2 kg but its weight would only be around 3N. The gravity on the moons is only one-sixth as strong as it is on earth
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Balanced/Unbalanced
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When one force is stronger than the other force, the speed will change . The forces are unbalanced
Moving objects can also have balanced forces, is the forces are balanced the object carries on moving at the same speed , the speed only changes when the forces are unbalanced
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