Question

1. which of the following describes an object that is speeding up? the object is

decelerating.
accelerating.
in a frictionless environment.
moving with constant speed.

Explanation:

To determine which option describes an object speeding up, we analyze each choice:

• "Decelerating" means the object is slowing down, so this is incorrect.
• "Accelerating" in physics means a change in velocity, which includes increasing speed (speeding up). This matches the description of an object speeding up.
• "In a frictionless environment" only tells us about the absence of friction, not necessarily that the object is speeding up (it could be moving at constant velocity or accelerating due to other forces, but the environment alone doesn't define speeding up).
• "Moving with constant speed" means the speed isn't changing, so the object isn't speeding up.

Answer:

B. accelerating.