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) A force can change the direction of a moving object. a) True b) False 3) What is a force? a) a very loud noise b) a push or pull upon an object 4) The greater the force, the less the change in the position of the object. a) True b) False 5) A force cannot change the shape of an object. a) True b) False 6) The dog is pulling on the leash. The boy is also pulling on the leash. Neither the dog or the boy move. Are the forces acting on the leash balanced or unbalanced? a) balanced forces b) unbalanced forces 7) ................. is a change of position. a) Motion b) Force c) Gravity 8) 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 9) The woman pushes the shopping cart. The cart rolls forward. Are the forces acting on the cart balanced or unbalanced? a) balanced forces b) unbalanced forces 10) The boy is pulling on a heavy wagon. The wagon does not move. Are the forces acting on the wagon balanced or unbalanced? a) balanced forces b) unbalanced forces 11) 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 12) How do you know if an object has changed position? a) not visible anymore. b) looks bigger. c) farther or closer from a reference point. d) on top of a reference point. 13) What does the word "position" mean? a) speed of an object b) location of an object c) amount of space between objects 14) 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

Practice (Force & Motion)

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