Podcast
Questions and Answers
What is the significance of the center of mass in a system of particles?
What is the significance of the center of mass in a system of particles?
- It represents the average position of all the particles in the system. (correct)
- It determines the shape of the rigid body.
- It is the point where the total mass of the system is concentrated. (correct)
- It indicates the location of the heaviest particle in the system.
Which of the following best defines a rigid body?
Which of the following best defines a rigid body?
- A body whose particles are free to move independently.
- A body that does not deform and maintains a constant shape. (correct)
- A body made entirely of particles with zero size.
- A body that can change shape under an applied force.
Why is treating large bodies as point masses inadequate?
Why is treating large bodies as point masses inadequate?
- Their mass cannot be concentrated at a single point.
- They always change shape under any motion.
- They participate in rotational motion only.
- They have a finite size and their internal structure affects motion. (correct)
What is one characteristic of real bodies that is often negligible in certain scenarios?
What is one characteristic of real bodies that is often negligible in certain scenarios?
What can be assumed about the motion of particles in a rigid body?
What can be assumed about the motion of particles in a rigid body?
What characterizes pure rotational motion?
What characterizes pure rotational motion?
In rolling motion, what happens to the point of contact with the surface?
In rolling motion, what happens to the point of contact with the surface?
What defines a rigid body?
What defines a rigid body?
Which is an example of rolling motion?
Which is an example of rolling motion?
Which statement is true about rotation about a fixed axis?
Which statement is true about rotation about a fixed axis?
Flashcards
Rigid body
Rigid body
A body with a fixed shape and distance between particles remain constant. Real bodies deform under force but often negligible in many situations.
Center of mass
Center of mass
The point representing the average position of all the particles in a system, weighted by their masses.
Translational motion
Translational motion
Motion where all points in a rigid body move along parallel paths. No rotation occurs.
Rotational motion
Rotational motion
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Systems of particles and rotational motion
Systems of particles and rotational motion
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Pure Translational Motion
Pure Translational Motion
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Pure Rotational Motion
Pure Rotational Motion
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Rolling Motion
Rolling Motion
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Rotation about a Fixed Axis
Rotation about a Fixed Axis
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