AP Physics 1easymcq1 pt
Which object has the largest rotational inertia, all with the same mass and radius?
A.A hollow cylinder (hoop)
B.A solid cylinder (disk)
C.A solid sphere
D.A hollow sphere
Explanation
Core Concept
The hoop's mass all sits at radius r, giving I = mr² — larger than solid shapes.
Correct Answer
AA hollow cylinder (hoop)
More Unit 7: Torque and Rotational Motion practice questions
- easyFor a rotating system, angular momentum remains constant under which condition?
- mediumA 0.60 kg ball swings in a circle of radius 0.50 m with period 0.40 s (π ≈ 3.14). Its angular momentum about the center is about
- mediumA 2.0 kg mass on a 1.0 m string is whirled so its angular momentum is 8.0 kg·m²/s. Its speed is
- easyFor rolling without slipping, the point of contact with the ground is
- hardA cylinder rolls down a ramp from height 1.8 m (I = ½mr², g = 10 m/s²). Its speed at the bottom is about
Practice more AP Physics 1 questions with full explanations
Practice Unit 7: Torque and Rotational Motion Questions →