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2. The ratio of displacement to distance is
A. Greater than 1
B. Either less than or equal to 1
C. Less than 1
D. Equal to 1
3. The magnitude of displacement is equal to minimum possible distance between two positions.
A. True
B. False
C. sometimes true and sometimes false
D. can’t predict
4. Which of the following statements about distance is true:
A. It always decreases with time
B. it can never be less than magnitude of displacement
C. It cannot be positive
D. It cannot be zero
5. Which of the following quantity remains constant during the uniform circular motion?
A. Velocity
B. Angular acceleration
C. Speed
D. Angular velocity
6. The magnitude of average velocity is equal to the average speed if the motion of an object is along a straight line and in the same direction.
A. True
B. can’t predict
C. False
D. sometimes true and sometimes false
7. A particle is moving along a circle of radius R such that it completes one revolution in 40 seconds. What will be the displacement after 2 minutes 20 seconds?
A. 6R
B. 2R
C. 4R
D. R
8. The numerical ratio of velocity to speed is:
A. Either less than or equal to 1
B. Equal to 1
C. Greater than 1
D. Less than 1
9. Two escalators move people up and down between floors of a shopping mall at the same rate, either up or down. What of the following statements regarding the motion of the escalators is true?
A. The escalators have different speeds and velocities.
B. The escalators have the same velocity, but different speeds.
C. The escalators have the same speed and velocity.
D. The escalators have the same speed, but different velocities.
10. A coordinate system that enables us to describe the position of a body in space at any instant of time is called
A. Reference frame
B. Intersection point
C. Origin
D. Reference point
11. The displacement of a particle starting from rest (at t = 0) is given by s = 6t2-t3 The time in seconds at which the particle will attain zero velocity again, is
A. 6
B. 4
C. 2
D. 8
12. The displacement of an object may be
A. positive
B. negative
C. positive, negative or zero
D. positive or zero
13. If a body does not change its direction during the course of its motion, then
A. Displacement is greater than path length
B. Path length and displacement are equal
C. Path length is greater than displacement
D. Path length is either greater or equal to displacement
15. The ratio of magnitude of velocity and speed is always:
A. Equal to or less than one
B. Less than one
C. One
D. Equal to or greater than one
16. Suppose our school is 1 km away from our house, and we go to school in the morning, and in the afternoon we come back. Then, the total displacement for the entire trip is
A. 1 km
B. 2km
C. -1 km
D. 0 km
17. An object is in uniform motion along a straight line if it
A. moves equal distances in equal intervals of time.
B. does not move
C. moves equal distances in unequal intervals of time.
D. moves unequal distances in unequal intervals of time
18. A man starts from his home with a speed of 4 km/h on a straight road up to his office 5 km away and returns to home, then the path length covered is
A. -5 km
B. 5 km
C. zero
D. 10 km
19. Choose the incorrect statement
A. Velocity is a vector quantity
B. Velocity can be positive, negative or zero
C. Velocity gives no idea about the direction of motion of the objects
D. Time rate of change of displacement is called velocity
20. Which of the following is not an example of a rectilinear motion?
A. A car moving in a circular path
B. A rain drop falling towards the earth
C. A car moving on a straight road
D. A wooden block sliding down the inclined plane
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