I need help with this physics quiz

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I need help with this physics quiz

You can see this pic to answer my question

1.

 The line segment BC on the distance vs. time graph given above indicates that the object is moving at a constant speed.

 

2.

A bus covers a distance of 160 miles in 4 hours. Its average speed in miles per hour is

   Half-n-half Clue
 

3.

If an object moves through equal distances in equal times, then it is moving at a constant _______.

   Half-n-half Clue
 

4.

Acceleration can be negative.

 

5.

 Consider the graph of distance (in m) vs. time (in s) given above. After 8 seconds, the object has traveled a distance of

   Half-n-half Clue
 

6.

Which of the following quantities is a scalar?

   Half-n-half Clue
 

7.

 The line segment BC on the velocity vs. time graph given above indicates that the object is constantly accelerating.

 

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