Question

9 multiple choice 0.5 points
if the forces on an object are balanced, ______ will be the result.
○ an acceleration
○ a change in motion
○ no change in motion
○ a change in the speed
10 multiple choice 0.5 points
if the forces on an object are unbalanced, ______ will be the result.
○ constant velocity
○ inertia
○ no change in motion
○ a change in motion

Explanation:

Question 9

According to Newton's first law of motion, when the net force (sum of forces) on an object is balanced (net force = 0), the object will either remain at rest or continue moving with a constant velocity (no change in motion). Acceleration, change in motion, and change in speed occur when forces are unbalanced (net force ≠ 0). So the correct option is "no change in motion".

Newton's second law states that unbalanced forces (net force ≠ 0) cause acceleration, which leads to a change in motion (change in velocity, speed, or direction). Constant velocity and no change in motion happen with balanced forces. Inertia is a property of matter, not a result of unbalanced forces. So the correct option is "a change in motion".

Answer:

C. no change in motion (assuming the options are labeled A to D with A: an acceleration, B: a change in motion, C: no change in motion, D: a change in the speed)

Question 10