QUESTION:
If an object speeds up, the object is accelerating. TRUE OR FALSE?
ANSWER:
EXPLANATION:
- The slowing down, speeding up, or changing of direction constitutes acceleration. The jeepney accelerates (positive acceleration) if it increases its speed or decelerates (negative acceleration) if it slows down. If it changes its direction, it still undergoes acceleration even if it is running at a constant speed along the highway.
ACCELERATION
Acceleration is defined as the time rate of change of velocity or simply how fast an object changes its velocity. Remember that velocity is also a vector quantity.
REMEMBER:
- Acceleration does not only mean speeding up but also slowing down or coming to a stop. If you slow down or come to a full stop, it is called deceleration or a negative acceleration. The direction of a negative acceleration is opposite the direction of motion.
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