Strings transmit (unchanged) an external force acting on one object to another object.

Below is a diagram of two blocks connected by a string. A second string attached to the red block is pulled to the right so that it has a tension of 10 N. Which of the following is true of the string between the red and blue blocks? Explain your choice.

a. The tension is less than 10 N.

b. The tension is equal to 10 N.

c. The tension is more than 10 N.

d. Can't be answered without knowing the masses of the blocks.

 

 

 Correct Answer

Students who suffer from this misconception will answer b.  

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

The motion will follow the path of the stronger force on the object.