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Item EG007002: The motion energy of an object depends on the speed and mass of the object.

The motion energy (kinetic energy) of an object depends on which of the following?

  1. Both the mass and the speed of the object
  2. The mass of the object but not the speed of the object
  3. The speed of the object but not the mass of the object
  4. Neither the mass nor the speed of the object
Distribution of responses
Answer Choice
Overall
Grades
Gender
Primary Language
 
n = 3087
6–8
n = 1923
9–12
n = 1153
Male
n = 1497
Female
n = 1535
English
n = 2716
Other
n = 301
A. Both the mass and the speed of the object 57% 55% 60% 57% 57% 58% 47%
B. The mass of the object but not the speed of the object 17% 17% 16% 16% 17% 16% 20%
C. The speed of the object but not the mass of the object 17% 18% 16% 18% 16% 17% 16%
D. Neither the mass nor the speed of the object 9% 9% 9% 9% 9% 8% 17%