I need help with this physics quiz

Apr 27th, 2015
Sigchi4life
Category:
Science
Price: $10 USD

Question description

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.

 True 

 False 

 

2.

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

 4

 40 

 640

 None of these 

   Half-n-half Clue
 

3.

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

 acceleration

 velocity

 speed 

 displacement 

   Half-n-half Clue
 

4.

Acceleration can be negative.

 True 

 False 

 

5.

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

 100 m

 110 m

 160 m 

 20 m 

   Half-n-half Clue
 

6.

Which of the following quantities is a scalar?

 speed 

 velocity

 acceleration

 force 

   Half-n-half Clue
 

7.

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

 True 

 False 

 

Tutor Answer

(Top Tutor) Daniel C.
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School: Cornell University
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