Motion in One Dimension Test

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Motion in One Dimension Test - 1

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Weekly Quiz Competition

Question 1
1 / -0

An object moves with a uniform velocity of 9.8 m/s. Its acceleration is

A
4.9 m/s²

B
zero

C
9.8 m/s²

D
19.6 m/s²

Solution

As the object is moving with uniform velocity so there will be no acceleration.
Question 2
1 / -0

A body covers a distance in 3 hr 48 min at 5 km/hr. How much time will it take to cover the same distance at 28.5 km/hr?

A
19 min

B
40 min

C
28.8 min

D
17.5 min

Solution

as we know, speed= distance/time
so in first case when speed is 5 km/hr and total time taken is 3 hr and 48 minutes i.e. 3.8 hours

total distance = speed x time
so, distance = 5 x 3.8 = 19 i.e. distance covered is 19 km

now using this distance we can find the time taken in second case as follows:
now the speed is 28.5 km/hr, so using the relation speed= distance/time once again,we find,

28.5 = 19/t
t = 19/28.5 = 0.66 hr i.e. 0.66 x 60 minutes = 40 min
Question 3
1 / -0

A scooterist travels for six hours. If he covers half of the distance at 60 km/hr and the rest at 48 km/hr, calculate the total distance travelled by him.

A
320 km

B
160 km

C
640 km

D
None of these
Question 4
1 / -0

The area of a square field is one hectare. The time taken by a boy to run once around it at a speed of 10 km/hr is

A
15.5 minutes

B
10 minutes

C
15 minutes

D
2.4 minutes
Question 5
1 / -0

A column of marching battalion extending to 250 m in length takes one hour to march through a street at the rate of 50 paces a minute, each pace being 75 cm. The length of the street is

A
3 km

B
4 km

C
2 km

D
1 km
Question 6
1 / -0

Which of the following is true about displacement?

A
It cannot be zero.

B
It is a scalar quantity.

C
Displacement covered may be positive, negative or zero.

D
Displacement between two given points is different.
Question 7
1 / -0

A person throws a ball upwards to a height `h`, and catches the ball back. What will be the distance and displacement covered by the ball?

A
h, 2h

B
2h, 0

C
2h, h

D
None of these
Question 8
1 / -0

A person moves on a semi-circular track of radius 84 m. He starts from one end of the track and reaches the other end. Find the distance covered and the displacement of the person.

A
132 m, 84 m

B
168 m, 168 m

C
264 m, 168 m

D
14 m, 10 m
Question 9
1 / -0

Which of the following statements is true?

A
Speed is a vector quantity.

B
Speed may have negative value.

C
SI unit of velocity is ms^-1.

D
All of these are true.
Question 10
1 / -0

The velocity of a car is 18 m/s. What is its equivalent in km/hr?

A
0.018 km/hr

B
64.8 km/hr

C
64800 km/hr

D
0.005 km/hr

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Re-Attempt Weekly Quiz Competition

Motion in One Dimension Test - 1

Result

Motion in One Dimension Test - 1

Score

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Rank

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SHARING IS CARING

Question 1

4.9 m/s2

zero

9.8 m/s2

19.6 m/s2

Solution

Question 2

19 min

40 min

28.8 min

17.5 min

Solution

Question 3

320 km

160 km

640 km

None of these

Question 4

15.5 minutes

10 minutes

15 minutes

2.4 minutes

Question 5

3 km

4 km

2 km

1 km

Question 6

It cannot be zero.

It is a scalar quantity.

Displacement covered may be positive, negative or zero.

Displacement between two given points is different.

Question 7

h, 2h

2h, 0

2h, h

None of these

Question 8

132 m, 84 m

168 m, 168 m

264 m, 168 m

14 m, 10 m

Question 9

Speed is a vector quantity.

Speed may have negative value.

SI unit of velocity is ms-1.

All of these are true.

Question 10

0.018 km/hr

64.8 km/hr

64800 km/hr

0.005 km/hr

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4.9 m/s²

9.8 m/s²

19.6 m/s²

SI unit of velocity is ms^-1.