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- 1. Multiple Choice
A body with a definite shape that doesn't change is:
period
angular acceleration
rigid body
radius of gyration
- 2. Multiple Choice
The number of complete revolutions per second is:
frequency
period
torque
rotational inertia
- 3. Multiple Choice
The product of the force times the lever arm; the movement of the force about the axis is:
torque
lever arm
rotational inertia
angular momentum
- 4. Multiple Choice
If a system is in static equilibrium, it must have the following 2 conditions:
∑τ=0
Constant acceleration
∑F=0
Positive forces only
- 5. Multiple Choice
The formula used to find a torque is...
(m)(g)
(F) cos(Ɵ)
(F)(r)( sin )
(m)(a)
- 6. Multiple ChoiceThe easiest way to open a heavy door is by applying the forceNear the hingesIn the middle of the doorAt the edge of the door far from the hingesAt the top of the door
- 7. Multiple Choice
Conditions for equilibrium are:
1st condition: net force = 0
2nd condition:net torque = 0
True
False
- 8. Multiple Choice__________ (ω)– the rate at which a body rotates about an axis (radians per second)linear speedrotational speedangular speedvelocity
- 9. Multiple ChoiceTorque can be positive or negative.TrueFalse
- 10. Multiple Choice
The value of torque depends on the rotation axis and the _______________________
magnitude of applied force.
mass of object
moment inertia of object
shape of object
- Answer choicesTagsAnswer choicesTags