Acceleration is when an object-
A. Speeds up, slows down, OR turns
B. Speeds up in a certain time period
C. Speeds up OR slows down
D. Changes direction
E. Slows down in a certain time period
A. Speeds up, slows down, OR turns
B. Speeds up in a certain time period
C. Speeds up OR slows down
D. Changes direction
E. Slows down in a certain time period