Question

directions: read the text, and answer the questions.
marcy rolls a marble down a ruler and hits a cup. it pushes the cup. marcy wants to know how she can push the cup farther.

1. how can marcy change the speed of the marble?

a. change its placement on the ruler. b. change the height of the ruler.
c. change the placement of the cup. d. any of these

1. if marcy replaces the cup with a heavier cup, how could the results of the experiment change?

a. the cup would move a little farther. b. the cup wouldn’t move as far.
c. the cup would move twice as far. d. the cup would move toward the marble.

1. plan an experiment to figure out how far marcy can push the cup.

Explanation:

Answer:

1. b. Change the height of the ruler.
2. b. The cup wouldn't move as far.
3. Set the ruler at a specific height and release the marble from the top. Measure the distance the cup moves from its starting point using a second ruler. Repeat the process while increasing the height of the first ruler to see how the distance changes.