How do constant velocity and changing velocity differ?

Question

Multiple select question.

If either speed or direction changes, the object moves at constant velocity.

If the direction changes but the speed does not, the object moves at changing velocity.

If either speed or direction changes, the object moves at changing velocity.

If neither speed nor direction changes, the object moves at constant velocity.

If speed changes but direction does not, the object moves at constant velocity

Answer 1

To address how constant velocity and changing velocity differ, we can analyze each statement you've provided:

1. If either speed or direction changes, the object moves at constant velocity.

   • False. If either the speed or direction changes, the object is not moving at constant velocity.

2. If the direction changes but the speed does not, the object moves at changing velocity.

   • True. Changing direction while maintaining speed results in a change in velocity because velocity is a vector quantity that includes both speed and direction.

3. If either speed or direction changes, the object moves at changing velocity.

   • True. If there is any change in speed or direction, the velocity of the object is changing.

4. If neither speed nor direction changes, the object moves at constant velocity.

   • True. Constant velocity means that both speed and direction remain the same.

5. If speed changes but direction does not, the object moves at constant velocity.

   • False. If the speed changes (even if the direction remains the same), the object is not moving at constant velocity.

In summary, the statements that are true regarding the differences between constant velocity and changing velocity are:

• If the direction changes but the speed does not, the object moves at changing velocity.
• If either speed or direction changes, the object moves at changing velocity.
• If neither speed nor direction changes, the object moves at constant velocity.