Question

An object that is accelerating may be (choose all that apply)

a
not moving.
b
slowing down.
c
changing direction.
d
gaining speed.
e
traveling at a constant speed

Answer 1

An object that is accelerating may be:

a. **not moving.** - (An object can be at rest and still be accelerating if it starts from rest or if it’s under the influence of an external force.)

b. **slowing down.** - (Acceleration can be negative, which indicates that the object is slowing down.)

c. **changing direction.** - (An object can be accelerating even if it's traveling at a constant speed if it is changing direction, as in circular motion.)

d. **gaining speed.** - (Positive acceleration means that the object is gaining speed.)

e. **traveling at a constant speed.** - (This is incorrect; if an object is traveling at a constant speed, its acceleration is zero.)

So the applicable choices are: **a, b, c, d.**