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Tue following statements are either true or false.Read each sentences carefully,then write if it is True or False.
1.A force cannot ne seen.
2.A force cannot be felt.
3.A force always causes things to move.
4.When an object is at rest,no gravitational force is acting on it.
5.Gravitational force pulls all things downward.
6.Mass and weight are the same quantities.
7.All objects on Earth have weight.
8.Some forces are useful to people.
9.Gravity makes it easy for a person to ride a bicycle uphill.
10.Weghtis measured in grams (g) ang kilograms (kg).​