Final answer:
To determine acceleration of an object moving in a straight line, you must calculate the change in velocity per unit of time.
Step-by-step explanation:
False. To determine acceleration of an object moving in a straight line, you must calculate the change in velocity per unit of time, not the change in speed. Speed is the magnitude of velocity, while velocity also includes direction. Acceleration represents the rate of change of velocity, so it is important to consider both magnitude and direction when calculating acceleration.