Jose wants to know the effects of mass, force, and surface type on the motion of a small box. He has one spring, one box, and an assortment of weights to put in the box. He compresses the spring between the box and a wall, measures how far he has compressed it, then releases the box. He then measures how far the box travels before stopping. The table below presents the data he collected.
Compression
of spring mass
of box type of
surface distance
traveled
0.5 cm 500 g carpet 34 cm
1.5 cm 250 g carpet 199 cm
0.5 cm 300 g linoleum 239 cm
1.5 cm 450 g linoleum 477 cm
0.5 cm 250 g concrete 123 cm
1.5 cm 300 g concrete 305 cm
What did Jose do wrong?
A.
He measured the wrong variable.
B.
He changed more than one variable at a time.
C.
He did not identify all the variables in the experiment.
D.
He did not graph his data.