Texas TEKS Standards
TX.112.19. Science, Grade 7.
(7.7) Force, motion, and energy. The student knows that there is a relationship among force, motion, and energy. The student is expected to:
7.7 (A) Contrast situations where work is done with different amounts of force to situations where no work is done such as moving a box with a ramp and without a ramp, or standing still.