1) Inertia is a) speeding up as a change in motion b) resistance to change in motion c) slowing down as a change in motion d) change in the direction of motion 2) Which of the following are the result of inertia? a) b) c) d) 3) Which of the following are experiencing an unbalanced force? (select two) a) Can rolling down hill b) Squirrel sitting on a tree branch c) Ball thrown to first base d) Train traveling at constant speed and direction 4) If a rock begins to roll down a hill, what is the unbalanced force causing it to increase it's speed? a) Friction b) Air resistance c) Gravity d) Magnetism 5) A rock is motionless in a flower bed. A bee lands on the rock and the rock remains motionless. What is the best explanation of why the rock does not move? a) The forces acting on the rock are unbalanced. b) The forces acting on the rock are balanced. c) The bee applies a force to the rock that increases its inertia. d) The bee applies an action-reaction force to the rock. 6) A student kicks a ball and it rolls along the ground before coming to a stop. What best explains why the ball stops? a) A balance force acted on the ball. b) The unbalanced force of friction caused the ball to stop. c) The balanced force of gravity caused the ball to stop. d) The ball's inertia caused it to stop rolling. 7) A boy is riding in a school bus at 40 mph and he has placed a ball on the ground. The bus stops suddenly. Which of the following best describes the motion of the ball? a) It's inertia will cause it to continue moving forward.  b) It will stay exactly where the boy put it. c) It will accelerate out the back window of the bus. d) It's inertia will cause it to bounce up and hit the ceiling of the bus. 8) Which of the following is NOT demonstrating inertia? a) b) c) d)

Law of Inertia

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