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2 cards from this section. Quick, good the night before a test.
Define torque in the context of rotational motion.
Think about how force changes the direction of motion in a rotation.
What does the center of mass represent?
Focus on how this point behaves during motion.
Define what torque does to a rigid body.
Remember how torque is applied and its effect.
Is the moment of inertia a fixed quantity?
Consider how changing the shape or mass distribution affects this quantity.
A hollow spherical shell and a solid sphere both have the same mass and radius. If both are rolled down an incline, which one reaches the bottom first, and why?
Consider the concepts of moment of inertia and acceleration due to gravity.
Two identical rods are rotating around their ends with the same angular velocity. One rod is solid, and the other is hollow. Which has more angular momentum and why?
Review the formula for angular momentum and moment of inertia.
4 more questions in this section. Enroll free to practise them all.
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