Frame of reference and position-time graphs — NEET & JEE Questions

Question 1 · difficulty L1 · recall

A frame of reference is used to specify

• A. position and motion relative to chosen coordinates and time
• B. mass only
• C. temperature only
• D. chemical composition

Question 2 · difficulty L2 · understanding

The motion of an airplane is represented by velocity-time graph as shown below. The distance covered by airplane in the first 30.5 second is ̱_______ km .

• A. 12
• B. 6
• C. 3
• D. 9

Question 3 · difficulty L2 · understanding

A particle is moving with constant acceleration 'a'. Following graph shows v 2 versus x(displacement) plot. The acceleration of the particle is ___________ m/s 2 .

Question 4 · difficulty L2 · understanding

On a position-time graph, the slope represents

• A. velocity
• B. acceleration
• C. force
• D. displacement squared

Question 5 · difficulty L3 · understanding

$$\text {Which of the following curves possibly represent one-dimensional motion of a particle? }$$ Choose the correct answer from the options given below :

• A. A, B and C only
• B. A, C and D only
• C. A, B and D only
• D. A and B only

Question 6 · difficulty L3 · understanding

Match Column-I with Column-II : Column-I ($$x$$-t graphs) Column-II ($$v$$-t graphs) A. I. B. II. C. III. D. IV. Choose the correct answer from the options given below:

• A. A- II, B-III, C-IV, D-I
• B. A- II, B-IV, C-III, D-I
• C. A- I, B-III, C-IV, D-II
• D. A- I, B-II, C-III, D-IV

Question 7 · difficulty L3 · understanding

The following plots show variation of velocity $(v)$ with time $(t)$ of a ball thrown vertically upward, and falling back. Which of the following plots is/are correct?

• A. C only
• B. D only
• C. B only
• D. A and E only

Question 8 · difficulty L3 · application

A position-time graph is a straight line rising from 0 m at 0 s to 20 m at 5 s. What is the velocity?

• A. 2 m/s
• B. 4 m/s
• C. 5 m/s
• D. 20 m/s

Question 9 · difficulty L4 · application

A position-time graph is horizontal for 10 s. What does this indicate?

• A. The object is at rest during that interval
• B. The object moves with constant nonzero velocity
• C. The object has constant positive acceleration
• D. The object moves backward

Question 10 · difficulty L4 · application

Two objects have position-time graphs that intersect at $t=4$ s. What does the intersection mean?

• A. They are at the same position at 4 s
• B. They must have the same velocity at 4 s
• C. They have travelled equal distances
• D. They have the same acceleration