WorksheetsAvi md 2
Total questions: 28
Worksheet time: 27mins
The relation between linear velocity and angular velocity
r = v⍵
⍵ = vr
v = r⍵
a = v⍵
The unit of angular velocity is
m/s
m/s²
rad/s
rad/s²
Centripetal acceleration is directed
directed away from the center of the circle
directed towards the center of the circle
it is perpendicular to the radius at that point
It has no direction
The expression for centripetal acceleration is
a = v⍵
a = r⍵²
a = v²/r
All of the above
1 rev/min is equal to
2Π/60 rad/s
4Π/60 rad/s
360 rad/s
2Π rad/s
The number of complete revolutions per second is:
frequency
period
torque
rotational inertia
The time required for one complete revolution is:
torque
frequency
period
rotational kinetic energy
What's the centripetal acceleration of an object traveling 2.3 m/s around a circle of diameter 0.6 m?
5 m/s2
17.63 m/s2
10 m/s2
8.81 m/s2
A ball on a string is spun around in a circle. Which of the following quantities is not constant?
mass
force
velocity
acceleration
A grindstone spinning at the rate of 8.3 rev/s has what approximate angular speed?
3.2 rad/s
26 rad/s
52 rad/s
81 rad/s
A
B
C
D
A
B
C
D
D
A
B
C
D
A
B
C
D
A
B
C
D
A
B
C
D
A
B
C
D
A
B
C
D
A
B
C
D
Where is kinetic energy at its maximum?
a
b
c
d
A man of mass 50 kg jumps to a height of 1 m. His potential energy at the highest point is(g = 10 m/s2)
(a) 500 J
(b) 50 J
(c) 5 J
(d) 5000 J
what is defined as the product of the magnitudes of displacement and the
component of the force parallel to the displacement ?
work
energy
momentum
power
