Free Printable ROTATIONAL MOTION OF RIGID BODY

1.

Convert 10 rev s^-1 into rad s^-1

a)

$20\pi\ rad\ \ s^{-1}$

b)

$40\pi\ rad\ \ s^{-1}$

c)

$30\pi\ rad\ \ s^{-1}$

d)

$10\pi\ rad\ \ s^{-1}$

2.

A gymnast on a high bar swings through two revolutions in

a time of 2.50 s. Find the average angular velocity (in rev/s)

of the gymnast.

a)

$0.8\ rev\ s^{-1}$

b)

$5\ rev\ s^{-1}$

c)

$1.25\ rev\ s^{-1}$

d)

$0.33\ rev\ s^{-1}$

3.

An airplane blades are rotating with an angular velocity of 110

rad/s. As the plane takes off, the angular velocity of the

blades reaches 330 rad/s in a time of 14 s. Find the

average angular acceleration.

a)

$20.3\ rad\ s^{-1}$

b)

$15.71\ rad\ s^{-1}$

c)

$2.31\ rad\ s^{-1}$

d)

$6.32\ rad\ s^{-1}$

4.

A fan blade with radius 0.6 m has an angular speed of 6.50 rad/s. Calculate its linear speed.

a)

10.83 ms^-1

b)

0.09 ms^-1

c)

3.9 ms^-1

d)

17.32 ms^-1

5.

Helicopter blade has a radius of 7 m and

has an angular acceleration of 1.30 rad s^-2 . Calculate its tangential acceleration.

a)

23.33 ms^-2

b)

0.04 ms^-2

c)

1.32 ms^-2

d)

9.1 ms^-2

6.

$1\ revolution\ =\ 2\pi\ rad$

A fan with radius of 1.5 m, rotates for 3 revolution. Calculate the displacement (arc length) for the rotational motion.

a)

4.5 m

b)

28.27 m

c)

12.57 m

d)

0.08 m

7.

A spinning top rotates at radius of 0.2 m and have an angular velocity of 1.2 rad s^-1. Calculate its centripetal acceleration.

a)

29 rad s^-2

b)

2.9 rad s^-2

c)

0.24 rad s^-2

d)

0.29 rad s^-2

8.

$\omega\ =\ \omega_o\ +\propto t$ Which rotational motion equation is similar with linear motion equation ?

a)

$v\ =\ u\ +\ at$

b)

$s\ =\ ut\ +\ \frac{1}{2}at^2$

c)

$v^2\ =\ u^2\ +\ 2as$

d)

$v\ =\ u\ +\ \propto t$

9.

$\theta\ =\ \omega_ot\ +\ \frac{1}{2}\propto t^2$ Which rotational motion equation is similar with linear motion equation ?

a)

$v\ =\ u\ +\ at$

b)

$s\ =\ ut\ +\ \frac{1}{2}at^2$

c)

$v^2\ =\ u^2\ +\ 2as$

d)

$v\ =\ u\ +\ \propto t$

10.

$\omega^2\ =\ \omega_o^2\ \ +\ 2\propto\theta$ Which rotational motion equation is similar with linear motion equation ?

a)

$v\ =\ u\ +\ at$

b)

$s\ =\ ut\ +\ \frac{1}{2}at^2$

c)

$v^2\ =\ u^2\ +\ 2as$

d)

$v\ =\ u\ +\ \propto t$

11.

The electric drill has a

constant angular acceleration of 2.50 rad s^-2 . The initial

angular velocity of the drill is 5.00 rad s^-1. Calculate the angular velocity after 4.0 s.

a)

1.5 rad s^-1

b)

15 rad s^-1

c)

150 rad s^-1

d)

0.15 rad s^-1

12.

A wheel turns about its axis of rotation at uniform angular acceleration from the rest. Calculate the angular displacement after 4 s when the angular acceleration of the wheel is 1.5 rad s-².

a)

12 rad

b)

10 rad

c)

20 rad

d)

11 rad

13.

A disc is rotated from rest with an angular velocity of disc is 7.5 rad s^-1 and rotates 22 rad. Calculate the angular acceleration of the disc.

a)

1.28 rad s^-2

b)

2.55 rad s^-2

c)

5.11 rad s^-2

d)

10.23 rad s^-2

ROTATIONAL MOTION OF RIGID BODY

Total questions: 13

Worksheet time: 22mins

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