Misconception FMM129:

A constant force is needed to keep an object moving at constant speed.

Items that test for misconception FMM129
Item ID
Number

Item Description

How Often the Misconception was Chosen

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FM100001

It is possible for an object to be moving at constant speed without a force pushing or pulling it.

42%

Items that test for misconception FMM129 in other key ideas

FM068003

Use of tables of speed versus time, and information about the speed of an object, to determine the forces acting on the object at various times.

48%