All Flashcards
In a free-body diagram, what does the length of a force vector indicate?
The magnitude of the force.
In a free-body diagram, what does the direction of a force vector indicate?
The direction of the force.
What force is always present in a free-body diagram on Earth?
Gravitational force (), pointing downwards.
What is the direction of the normal force relative to the surface?
Perpendicular to the surface.
What does the tension force represent in a free-body diagram?
The force exerted along a rope or string.
What is the effect of increasing the net force on an object (with constant mass)?
The acceleration of the object increases.
What is the effect of increasing the mass of an object (with constant net force)?
The acceleration of the object decreases.
What is the effect of tension in a rope pulling on an object?
The object accelerates in the direction of the tension force.
What is the effect of friction acting on a moving object?
The object decelerates, and its motion is opposed.
What are the steps to draw a Free-Body Diagram?
- Isolate the object. 2. Sketch the object. 3. Identify forces acting on the object. 4. Draw force vectors. 5. Label forces. 6. Add a coordinate system (if needed).
How do you apply Newton's Second Law to solve a problem?
- Draw a free-body diagram. 2. Resolve forces into components. 3. Apply in each direction. 4. Solve for the unknown.
What is the first step in solving force problems using free-body diagrams?
Isolate the object of interest by focusing on one object at a time.
What should you do after identifying all the forces acting on an object?
Draw force vectors with arrows representing each force, starting from the object.
What is the final step in creating a free-body diagram?
Add x and y axes if needed for analysis to create a coordinate system.