

Forces and Motion in Two-Block Systems
Interactive Video
•
Physics, Science, Mathematics
•
9th - 12th Grade
•
Practice Problem
•
Hard
Patricia Brown
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to an object when the sum of all forces acting on it is zero?
It accelerates.
It remains stationary.
It moves at a constant velocity.
It changes direction.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the sample problem, what is the role of the tension in the string?
It cancels out the gravitational force.
It accelerates the sliding block.
It supports the hanging block.
It reduces the mass of the blocks.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do internal forces affect the motion of the two-block system?
They increase the system's acceleration.
They decrease the system's acceleration.
They have no effect on the system's motion.
They change the direction of the system's motion.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the acceleration of the two-block system in the sample problem?
Half of G
Zero
Equal to G
Twice of G
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the tension in the string when the blocks are accelerating?
Zero
Equal to the weight of one block
Half the weight of one block
Twice the weight of one block
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If the sliding block is held stationary, what happens to the string tension?
It becomes zero.
It equals the weight of the hanging block.
It halves.
It doubles.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to the tension in the string when the blocks are released and allowed to accelerate?
It decreases.
It becomes zero.
It remains constant.
It increases.
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