Section 8.1
Describing Rotational Motion
Practice Test
1.
A mass that rotates around its own axis is a(n) __________.
a.
orbiter
b.
satellite
c.
rigid rotating object
d.
projectile
Hint
2.
In Figure 8-2, if the radius of the CD is 6.0 cm and the angular velocity is 5.0 rad/s, what is its angular displacement in 2.0 s?
a.
6.0×10
1
rad
b.
1.7 rad
c.
1.0×10
1
rad
d.
0.60 rad
Hint
3.
In Figure 8-2, if the radius of the CD is 6.0 cm and the angular velocity is 5.0 rad/s, what is the linear displacement of a point on the edge in 2.0 s?
a.
60 m
b.
0.30 m
c.
0.60 m
d.
3.8 m
Hint
