An object undergoes acceleration (non-zero) when it
Understand the Problem
The question is asking for the conditions under which an object experiences non-zero acceleration. Acceleration occurs when there is a change in velocity, which includes speeding up, slowing down, or changing direction.
Answer
Speeds up, slows down, or changes direction.
The options that result in non-zero acceleration are when the object speeds up, slows down, or changes direction.
Answer for screen readers
The options that result in non-zero acceleration are when the object speeds up, slows down, or changes direction.
More Information
An object accelerates when its velocity changes, either by increasing speed, decreasing speed, or altering its direction.
Tips
A common mistake is thinking that acceleration only occurs when the speed changes, but changing direction also counts.
Sources
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