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Practice Using Free-Body Diagrams to Calculate Balanced Forces

Instructions:

Choose an answer and hit 'next'. You will receive your score and answers at the end.

question 1 of 3

Are the forces unbalanced or balanced in the free-body diagram below?

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1. A cart is moving across a table in physics class. When the applied force is 5N, the frictional force is also 5N. Will this car remain in motion or stop after 3 minutes if the motor continues to run?

2. If you want to hang a picture frame that has a force due to gravity of 20N, what does the tension in the cable have to be to prevent it from falling?

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About This Quiz & Worksheet

Inside this quiz and worksheet combo, you can review what you have learned about free-body diagrams (FBDs) and their use in calculating balanced forces. Questions focus on whether forces are balanced or unbalanced in a given FBD as well as the process of applying a force to an object that experiences an equivalent frictional force.

Quiz & Worksheet Goals

Check your knowledge of the lesson with quiz questions on these topics:

  • Whether a car will remain in motion or stop with a given force
  • Hanging a picture frame and preventing it from falling
  • An FBD of a ball placed on a table, then pushed
  • Characteristics of a cart that experiences equal frictional force

Skills Practiced

  • Problem solving - use what you know to solve a practice problem involving a cart stopping or remaining in motion
  • Knowledge application - utilize your skills to answer questions about balanced vs. unbalanced forces
  • Information recall - remember what you have learned about hanging a picture and preventing it from falling

Additional Learning

To learn more about the material, check out the lesson titled Practice Using Free-Body Diagrams to Calculate Balanced Forces. With this open, you can delve into the additional topics seen here:

  • Newton's First Law
  • Defining a free-body diagram
  • A practice problem involving a fan hanging from the ceiling
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