Probing the misconception:

Leading (following) particle moves at a faster (slower) speed.

References Description

 

Below is a strobe photograph of two balls rolling (to the right) parallel to each other on two tracks. Students are asked to determine which, if either, of the two balls is moving faster.

 

Correct Answer

Below is a strobe photograph of two balls rolling (to the right) parallel to each other on two tracks. Students are asked to determine which, if either, of the two balls is moving faster.

 

Correct Answer

 

Students suffering from this misconception will state that the ball which is in the lead is the faster moving ball.  

 

Related misconceptions/student difficulties that may arise in the question:

Same position means same speed.

 

 

 

 

 

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