Suppose the sun was replaced by a star that had twice as much mass. how would the gravitational force between the sun and its planets change?
a. the gravitational force would stay the same.
b. the gravitational force would be half as large.
c. the gravitational force would be twice as big.
d. the gravitational force would now depend on the square of the distance to each planet.

Asystematic approach to problem solving is called a (an)

Click the game tab at the bottom of the simulation and select level 1. (there is no seesaw balance for this part of the activity.) balance the first equation, and click check to see if you got it right. if you can’t balance it in the first try, you can try again. work through the five equations for level 1. click continue to go on to level 2, and later level 3. each level is more difficult than the one before. keep trying until all the equations are balanced. in one or two sentences, describe how you did in the balancing game. in a few more sentences, explain one strategy you learned for balancing more complex equations.

When conducting an investigation to determine which type of fertilizer produces the most flowers on a plant, which variable would be graphed on the x-axis once you collected the data? a. type of fertilizer b. amount of flowers c. amount of water d. number of days that the plants grew