Original Project
Force and Motion
Item FM095001: A moving object will slow down the entire time that a force that opposes its motion is greater than the force pushing or pulling it forward.
What will happen to an object if a force that opposes its motion is greater than the force pushing or pulling it forward?
- The object will move at constant speed the entire time.
- The object will move slower and slower the entire time.
- The object will move at constant speed for a while and then slow down.
- The object will slow down for a while and then move at constant speed.
- Distribution of Responses
- Students Responding Correctly
| Group | Correct | Total | Percent |
|---|---|---|---|
| Overall | 945 | 1723 | 55% |
| Grades | |||
| 6–8 | 592 | 1107 | 53% |
| 9–12 | 353 | 615 | 57% |
| Gender | |||
| Male | 497 | 843 | 59% |
| Female | 435 | 855 | 51% |
| Primary Language | |||
| English | 879 | 1587 | 55% |
| Other | 47 | 100 | 47% |
- Disciplinary Core Ideas
- PS2.A The motion of an object is determined by the sum of the forces acting on it; if the total force on the object is not zero, its motion will change. The greater the mass of the object, the greater the force needed to achieve the same change in motion. For any given object, a larger force causes a larger change in motion.
PS2.A Newton's second law accurately predicts changes in the motion of macroscopic objects.