Motion
17 solved questions from Class 9 Science, each with the full working. Tap any question to see the step-by-step solution.
- 1 What is the fundamental scientific concept introduced in the chapter 'Motion'? medium MCQ Key Concept & Definition
- 2 Which of the following is an important application or observation related to 'Motion'? easy MCQ Practical Application
- 3 What primary question does the chapter 'Motion' aim to answer? medium MCQ Core Scientific Inquiry
- 4 Why is the study of 'Motion' essential for students in class-9? hard MCQ Importance & Significance
- 5 Which key practice is recommended while studying topics in 'Motion'? medium MCQ Scientific Method
- 6 What is the primary topic or theoretical principle explored in 'Motion' (Class 9 SCIENCE)? medium MCQ Chapter Core Principle
- 7 Which key mechanism or analytical rule is highlighted in 'Motion'? medium MCQ Key Analytical Mechanism
- 8 A body starts from rest and accelerates uniformly at 4 m/s². What is its displacement after 5 s? medium MCQ 3 marks Displacement under uniform acceleration
- 9 A car travels a distance of 150 km in 3 hours. What is its speed in km/h? easy 2 marks Speed calculation
- 10 A stone is dropped from rest from the top of a 100 m high cliff. (Assume acceleration due to gravity g=10 m/s²). Calculate the velocity of the stone after 3 s and the distance it has fallen in those 3 s. hard 5 marks Kinematic equations for free fall
- 11 Ravi walks 4 km east and then 1 km west. What is his displacement and total distance travelled? easy 2 marks displacement vs distance
- 12 A ball is thrown vertically upward from the ground with an initial speed of 30 m/s. Taking the acceleration due to gravity as 10 m/s², after how many seconds will its speed become 10 m/s on its way down? hard MCQ 4 marks vertical motion kinematics
- 13 An electric scooter covers a distance of 90 km in 3 hours. What is its average speed in km/h? easy 1 mark average speed
- 14 A bus covers a distance of 120 km in 4 hours. What is its average speed in km/h? easy 1 mark average speed calculation
- 15 A cyclist rides eastward for 60 km at a speed of 15 km/h, then immediately turns west and rides 30 km at a speed of 12 km/h. What is the cyclist’s total distance travelled and displacement from the starting point? medium 2 marks displacement versus total distance
- 16 From the top of a 45‑m high roof, a stone is thrown horizontally with speed 25 m/s. Assuming (g=10\text{ m/s}^2) and neglecting air resistance, find (i) the time taken to hit the ground and (ii) the horizontal distance travelled. hard 4 marks horizontal projectile motion
- 17 A child starts from rest and moves with a constant acceleration of 3 m/s² for 4 s. He then walks at a constant speed for another 3 s. What is his total displacement? medium MCQ 3 marks displacement in uniform acceleration and constant speed