Practice Test 11

Two students make kinetic energy vs speed graphs.

Student 1 uses a 1 kg object.

Student 2 uses a 4 kg object.

Both students test speeds from 0 to 4 m/s.

Which statement is true about the two graphs?

A student keeps mass constant and measures kinetic energy at several speeds. The data are:

Speed (m/s): 1, 2, 3, 4

Kinetic Energy (J): 1, 4, 9, 16

Which statement best describes the relationship between kinetic energy and speed for this object?