Sri Chaitanya School 1 No. 1 School In india
WORKSHEET - 5
MCQ with one or more correct answers.
1. The ratis of the angular velocities of the hour hand and minute hand of a watch is [ ]
a) 1 : 1 b) 1 : 12 c) 43200 : 1 d) 720 : 1
2. A particle moves in a circle of radius 50 m with a linear speed of 10 m/s. The angular velocity of
the particle is [ ]
a) 20 rad s–1 b) 2 rad s–1 c) 0.2 rad s–1 d) 0.02 rad s–1
3. A person ruming in a circular track of radius 100m, with tangential acceleration 10 ms–2. Then
his angular acceleration is [ ]
a) 0.1 rad s–2 b) 10 rad s–2 c) 0.1 rad s–1 d) 10 rad s–1
4. A particle moves in a circle of radius 5 m with an angular speed 4 rad s–1. Its linear speed is
[ ]
a) 2 ms–1 b) 8 ms–1 c) 20 ms–1 d) 0.2 ms–1
5. Angular acceleration [ ]
a) t b) 2 1
t
c)
t
d)
6. A car is traverlling along a circular parth of radius 80 m if its speed is 16 ms–1 and is increasing
uniformly at 8 ms–2 then at that instant [ ]
a) magnitude of its normal acceleration is 6 ms–2
b) magnitude of angular acceleration 11 rad s–2
c) magnitude of tangential acceleration is 8 ms–2
d) magnitude of its acceleration is 7.2 ms–2
7. A body is moving is a circular path of radius 20 cm with a linear speed of 5 ms–1 normal
acceleration is [ ]
a) 0.125 ms–2 b) 1.25 ms–2 c) 125 ms–2 d) 12.5 ms–2
8. A particle moves in a circle of radius 4 cm with a speed of 8 ms–1. It’s angular velocity is
changing at rate of 6 rad s–2. The normal acceleration of the particle is [ ]
a) 8 ms–2 b) 16 ms–2 c) 6 ms–2 d) 2 ms–2
Subject : Physics Class : VII (Techno)
Topic : Circular Motion - (Concept - III)
Answers
Answer:
Every child has innate capabilities that help him/her shine. Our expert faculty provides the right guidance to bring out these latent qualities, transforming the student into a successful individual.Sri Chaitanya Syllabus is a unique one with an orientation of enabling the students take up to the task of getting selected for the Prestigious IIT’s, NIIT’S, AIIMS, JIPMER, AIPMD, DEEMED UNIVERSITIES and other Medical and Engineering Institutes and other streams with ease and comfort.
CURRICULUM
Sri Chaitanya devised a strong Curriculum, integrating the components of Maths, Physics, Chemistry and Biology which are needed for the various Entrance Exams under the name of TECHNO CURRICULUM.
The Content Matter is divided into optimum doses so that the students do not feel overburdened with the syllabus. At the same time care is taken to see that the Components of the Techno Curriculum are strictly according to their Normal Course of Study related to the Class in which they are studying at present.
This makes them study their present syllabus in depth with the help of the Micro Level Teaching, providing them the chance of improving their performance in the current Class in which they are studying.