The actual length of the path travelled by a moving body irrespective of the direction is called the distance travelled by the body. The change in the position of a moving body in a particular direction is called its displacement. Displacement is generally denoted by d or x. Distance travelled by a moving body cannot be zero, while displacement may be zero. Displacement is a vector quantity. So displacement has magnitude as well as direction. The displacement of a body is for a certain interval of time.
1. What is the SI unit of displacement?
A. M /S
B. Meter square
C. Meter
D. Kilometer
2. The Omega is the symbol for______.
A. Angular displacement
B. Angular velocity
C. Angular acceleration
D. Linear speed
3. The rate of change of displacement is...
A. Speed
B. Velocity
C. Acceleration
D. Retardation
4. What is the motion of the watch-bob?
A. Transferable
B. Circular
C. Rotational
D. Oscillations
5. The distance-time graph of a body moving with constant speed is a_____.
A. Straight line
B. Stepped line
C. Curved line
D. Circle
6. When a body moves at a constant speed along a circle...
A. No work is done on it
B. No acceleration is produced in the body
C. No force acts on the body
D. Its velocity remains constant
7. An object revolves around a circular path. What will be the acceleration of the object?
A. Along the circumference
B. Along the tangent
C. Along the radius
D. Zero
8. A car whose speed is 35 km per hour. What will be Travel in 12 minutes?
A. 7 km
B. 3.5 km
C. 14 km
D. 28 km
9. When a particle covers equal distance in equal intervals of time, it is said to be___________.
A. Moving with uniform speed
B. Moving with uniform velocity
C. Moving with uniform acceleration
D. At rest
10. When a circle rotates along a circle, the force that keeps it moving with uniform speed is...
A. Centripetal force
B. Atomic force
C. Internal force
D. Gravitational force
11. Which of the following is the relation between linear speed and angular velocity?
A. V= omega ×radius
B. V= omega/ radius
C. R= velocity× omega
D. V= omega-radius
12. Which one is the SI unit of angular acceleration?
A. Radian/ second square
B. Radian/ second
C. Radian/ second inverse
D. None of these
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