Motion and Time Worksheet-1

Motion and Time Worksheet-1

1. A body said to be in non-Uniform motion.

(a) If the speed or direction of the body remains constant

(b) If the speed or direction of the body does not remain constant

(c) If it covers equal distances in equal intervals of time

(d) None of these

2. The to and fro motion is an example of

(a) Oscillatory motion

(b) Periodic motion

(c) Circulatory motion

(d) Both Oscillatory motion & Periodic motion

3. Speed-distance graph of an object in uniform motion which comes to rest suddenly is

(a)

(b)

(c)

(d)

4. In earlier days, people use to measure time on the basis of

(a) Occurrence of periodic events in nature

(b) Movement of a compass needle

(c) Reading in an odometer

(d) None of these

5. Match the columns and select the correct option from the codes given below.

Column I     -    Column II

A. Days           -    1. Second

B. Months      -    2. m/s

C. Time           -   3. Metre

D. Speed         -   4. The time from one sunrise to the next

E. Distance     -   5. One new moon to the next

(a) (A) → (5); (B) → (1); (C) → (2); (D) → (3); (E) → (4)

(b) (A) → (4); (B) → (5); (C) → (1); (D) → (2); (E) → (3)

(c) (A) → (2); (B) → (3); (C) → (4); (D) → (5); (E) → (1)

(d) (A) → (1); (B) → (2); (C) → (3); (D) → (4); (E) → (5)

6. Which one of the following records the distance travelled by the vehicles?

(a) Manometer                             (b) Odometer

(c) Speedometer                           (d) Motometer

7. If a body moves with uniform velocity, then

(a) Its initial velocity is zero

(b) Its final velocity is zero

(c) Its acceleration is non-zero

(d) Its change in velocity is zero

8. A particle is travelling with a constant speed this means

(a) Its position remains constant as time passes

(b) It covers equal distances in equal time intervals

(c) Its acceleration is zero

(d) It does not change its direction of motion

9. Which of these is closest to uniform motion?

(a) Car travelling on a busy straight road

(b) Car travelling on a busy curved road

(c) Car travelling on a straight empty road

(d) Car travelling on a curved empty road

10. Which of the following instruments measures time most accurately?

(a) Sundial                                     (b) Quartz watch

(c) Pendulum clock                      (d) Watch with balance wheel

Answer Key:

1. (b)
2. (d)
3. (c)
4. (a)
5. (b)
6. (b)
7. (d)
8. (b)
9. (c)
10. (b)