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WorksheetsAP Phys 1- Rotational Motion
Total questions: 10
Worksheet time: 28mins
Name
Class
Date
1.
For a rotating rigid body, which of the following statements is NOT correct?
a)
All points along a rotating rigid body move with constant speed
b)
Points along a rotating body have velocities that continuously change directions
c)
Points along a rotating body move through the same angle in equal time intervals
d)
All of the answers are correct
2.
A radian is all of the following EXCEPT
a)
A dimensionless quantity
b)
The ratio of arc length over radius
c)
The same as degrees
d)
The unit for rotational position
3.
When the clock reads 1:45 p.m., what is the rotational position of the minute hand in radians, as measured from a 12:00 reference line?
a)
π/4
b)
π/2
c)
π
d)
–π/4
4.
The minute hand of a clock goes from the ":00" position to the ":15" position in 15 minutes. What is the angular velocity of the clock hand?
a)
6 degrees/minute
b)
π/30 radians/minute
c)
Both of the above
d)
Neither of the above
5.
If the angular velocity of an object changes from 3 rad/s to 1 rad/s in 2 seconds, what is the object's angular acceleration?
a)
–1.5 rad/s^2
b)
–1 rad/s^2
c)
1 rad/s^2
d)
1.5 rad/s^2
6.
If the translational velocity of an object is 3 m/s, and is located a distance of 2 m from the axis of rotation, what is the object's angular velocity?
a)
0.67 rad/s
b)
1.5 rad/s
c)
5 rad/s
d)
6 rad/s
7.
An object completes 1.5 circular orbits in half a minute. What is its approximate angular velocity?
a)
0.05 rad/s
b)
0.30 rad/s
c)
0.5 rad/s
d)
3 rad/s
8.
An object completes 1.5 circular orbits in half a minute. It orbits with a radius of 2 m. What is the object's tangential speed?
a)
0.15 m/s
b)
0.60 m/s
c)
1.6 m/s
d)
6 m/s
9.
Which of the following quantities will impact how a rigid body's rotational speed can change?
a)
The body's rotational inertia
b)
The net torque on the body
c)
The net force on the body
d)
Two of the answers are correct
10.
You exert a force on a friend who is holding a
4.0-m-long rope. Now suppose you exert the same force on your friend, but the friend is holding an
8.0-m-long rope. How will this affect the rotational acceleration?
4.0-m-long rope. Now suppose you exert the same force on your friend, but the friend is holding an
8.0-m-long rope. How will this affect the rotational acceleration?
a)
It will be quartered
b)
It will be halfed
c)
It will double
d)
It will quadruple
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