Physics
Class 9
Lakhmir Singh
1
Chapter 1: Motion
117 questions
Q1
Question 46:
The speed of a moving object is determined to be 0.06 m/s. This speed is equal to :
(a) 2.16 km/h
(b) 1.08 km/h
(c) 0.216 km/h
(d) 0.0216 km/h
(a) 2.16 km/h
(b) 1.08 km/h
(c) 0.216 km/h
(d) 0.0216 km/h
Q2
Question 47:
A freely falling object travels 4.9 m in 1st second, 14.7 m in 2 nd second, 24.5 m in 3rd second, and so on. This data shows that the motion of a freely falling object is a case of :
(a) uniform motion
(b) uniform acceleration
(c) no acceleration
(d) uniform velocity
(a) uniform motion
(b) uniform acceleration
(c) no acceleration
(d) uniform velocity
Q3
Question 48:
When a car runs on a circular track with a uniform speed, its velocity is said to be changing. This is because :
(a) the car has a uniform acceleration
(b) the direction of car varies continuously
(c) the car travels unequal time intervals.
(d) the car travels equal distances in unequal time intervals
View all question(a) the car has a uniform acceleration
(b) the direction of car varies continuously
(c) the car travels unequal time intervals.
(d) the car travels equal distances in unequal time intervals
2
Chapter 2: Force and Laws of Motion
114 questions
3
Chapter 3: Gravitation
157 questions
4
Chapter 4: Work and Energy
128 questions
5
Chapter 5: Sound
162 questions
Question
Question 47:
A freely falling object travels 4.9 m in 1st second, 14.7 m in 2 nd second, 24.5 m in 3rd second, and so on. This data shows that the motion of a freely falling object is a case of :
(a) uniform motion
(b) uniform acceleration
(c) no acceleration
(d) uniform velocity
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Text solution
Verified
Answer:
(b) The displacement of the body in equal interval of time is unequal, but acceleration is constant. The acceleration will thus be uniform, so the answer is (b).
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Practice more questions from Physics (Lakhmir Singh)
Q1
Question 46:
The speed of a moving object is determined to be 0.06 m/s. This speed is equal to :
(a) 2.16 km/h
(b) 1.08 km/h
(c) 0.216 km/h
(d) 0.0216 km/h
(a) 2.16 km/h
(b) 1.08 km/h
(c) 0.216 km/h
(d) 0.0216 km/h
Q2
Question 47:
A freely falling object travels 4.9 m in 1st second, 14.7 m in 2 nd second, 24.5 m in 3rd second, and so on. This data shows that the motion of a freely falling object is a case of :
(a) uniform motion
(b) uniform acceleration
(c) no acceleration
(d) uniform velocity
(a) uniform motion
(b) uniform acceleration
(c) no acceleration
(d) uniform velocity
Q3
Question 48:
When a car runs on a circular track with a uniform speed, its velocity is said to be changing. This is because :
(a) the car has a uniform acceleration
(b) the direction of car varies continuously
(c) the car travels unequal time intervals.
(d) the car travels equal distances in unequal time intervals
View all(a) the car has a uniform acceleration
(b) the direction of car varies continuously
(c) the car travels unequal time intervals.
(d) the car travels equal distances in unequal time intervals
Practice questions from Physics (Lakhmir Singh)
Question 1
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(a) km/s2
(b) cm s−2
(c) km/s
(d) m/s2
Question 2
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(a) uniform velocity
(b) uniform acceleration
(c) increasing acceleration
(d) decreasing acceleration
Question 3
Views: 5,269
(a) if the car is moving on straight road
(b) if the car is moving on circular road
(c) if the pendulum is moving to and fro
(d) if a planet is moving around the sun
Question 4
Views: 5,350
Practice more questions from Motion
Question 1
Medium
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Question 2
Easy
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| Question Text | Question 47:
A freely falling object travels 4.9 m in 1st second, 14.7 m in 2 nd second, 24.5 m in 3rd second, and so on. This data shows that the motion of a freely falling object is a case of : (a) uniform motion (b) uniform acceleration (c) no acceleration (d) uniform velocity |
| Topic | Motion |
| Subject | Science |
| Class | Class 9 |
| Answer Type | Text solution:1 |
| Upvotes | 44 |
