WorksheetsPhys 161 Lab 6
Total questions: 12
Worksheet time: 4mins
What is the SI unit of angular velocity (ω)?
meters per second (m/s)
radians per second (rad/s)
revolutions per minute (rpm)
Newtons (N)
If a rotating disc has an angular acceleration (α), how is tangential acceleration (aₜ) related to it?
at = α/r
at = α⋅r
at = ω⋅r
at = ω2 r
Which equation correctly represents torque (τ) when a force (F) is applied at a distance (r) from the pivot point?
τ=Fr
τ=rF
τ=F+r
τ=F−r
The moment of inertia (I) of an object depends on:
Only its mass
Only its shape
Both mass and distribution of mass relative to the axis of rotation
Only its angular velocity
In a rotary motion experiment, a hanging mass causes a pulley to rotate. Which force provides the torque?
Normal force
Tension in the string
Gravitational force on the pulley
Frictional force
Which of the following is a significant source of error in a rotary motion lab?
Air resistance
Friction in the axle
Mass of the string
All of the above
If a spinning ice skater pulls their arms inward, what happens to their angular velocity (assuming no external torque)?
It decreases
It increases
It remains constant
It becomes zero
The rotational kinetic energy Krot of a spinning object is given by:
Krot=21mv2
Krot=21Iω2
Krot =τΘ
Krot =Fr
What are you exploring in this experiment?
The linear movement of an object
The free fall of an object
The rotational motion of a rigid object
The linear movement of an object and the rotational motion of a rigid object
Which concept are we becoming more familiar with?
Angular acceleration
Angular velocity
Torque
Moment of inertia
Is there a deadline for submitting a lab grade appeal?
You have 10 days to appeal the grade after it was displayed on Moodle. Any appeals after this period are not accepted.
You can submit appeal in the end of semester
You have 3 days to appeal the grade after it was displayed on Moodle. Any appeals after this period are not accepted.
You have 5 days to appeal the grade after it was displayed on Moodle. Any appeals after this period are not accepted.
What steps must be followed to appeal a lab grade?
You should begin by emailing the professor
email your LA indicating your laboratory section, laboratory name and number. State your arguments point by point.
You should begin by emailing the lab coordinator.
