Original Project
Force and Motion
A moving object will maintain the same speed and direction of motion unless a force acts on it.
Item FM056003: An object’s speed will decrease the entire time that a force is acting in the direction opposite its direction of motion.
A force is acting on a moving object that causes it to slow down. No other forces are acting on this object. The object does not stop or turn around.
Which statement describes what will happen to the object's motion while the force acts?
A. The object’s speed will decrease the entire time.
B. The object’s speed will stay the same the entire time.
C. The object’s speed will decrease for a while and then increase.
D. The object’s speed will decrease for a while and then stay the same.
Answer Choice |
Overall |
Grades |
Gender |
Primary Language |
|||
|---|---|---|---|---|---|---|---|
| n = 3518 |
6–8 n = 2232 |
9–12 n = 1276 |
Male n = 1675 |
Female n = 1770 |
English n = 3168 |
Other n = 279 |
|
| A. | 46% | 45% | 49% | 48% | 45% | 48% | 35% |
| B. | 17% | 18% | 15% | 17% | 17% | 17% | 21% |
| C. | 13% | 14% | 12% | 13% | 14% | 13% | 17% |
| D. | 23% | 22% | 25% | 22% | 24% | 23% | 28% |