1) What is the force that pulls objects to the center of Earth called? a) motion b) friction c) gravity d) acceleration e) force 2) What is a force? a) a very loud noise b) a push or pull upon an object 3) A boy kicks a soccer ball. The ball rolls away from him. Are the forces acting on the ball balanced or unbalanced? a) balanced forces b) unbalanced forces 4) The children are playing tug of war. They both pull on the rope. The rope moves to the left. a) balanced forces b) unbalanced forces 5) The soccer ball is on the ground. It is not moving. Are the forces acting on the ball balanced or unbalanced? a) balanced forces b) unbalanced forces

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