Question

question 1: an unbalanced force pulls the marble downhill. only upward forces act. no forces act on the marble. question 2: a student pushes a box and it starts moving from rest. what does this show? no forces acted on the box. only gravity acted. an unbalanced force made it speed up. forces were balanced. 0.25 pts

Explanation:

For the first question, according to Newton's laws, an unbalanced force causes an object to move, so when a marble moves downhill, it's due to an unbalanced force. For the second question, a box starting to move from rest means an unbalanced force (the student's push) has been applied to make it speed - up.

Answer:

Question 1: An unbalanced force pulls the marble downhill
Question 2: An unbalanced force made it speed up