1.according to newtons second law of motion when an object is acted on by an unbalanced force how will that object respond? (a it will accelerate (b it will increase velocity (c it will stop moving (d it will decrease speed. 2. a rocket blast off and moves away from earth how is the rocket affected by earth's gravitational pulls as it moves further away? (a the pull of gravity on the rocket increases (b the pull of gravity on the rocket remains constant (c the pull of the gravity on the rocket decreases (d the pull of gravity on the rocket reverses 3. an object is seen to either speed up slow down or change direction these behaviors are caused by? (a a balance set of forces (b frictional force (c stable factors (d unbalanced force 4. what to aspects of a force do scientist measure? (a size and stability (b strength and magnitude (c position and size (d magnitude and direction 5. a tight rope walker who does not want to change his position will want the forces acting on him to be? (a large (b small (c unbalanced (d balanced