alleryStart learning →Order the equations of motion
Read exercise and reference answers
- Steps
- v = u + at
- s = ut + ½at²
- v² = u² + 2as
- s = (u + v)/2 · t
- Instructions
- Tap the equations of motion one by one in their standard order.
ICSE Class 9 Motion in One Dimension — practice questions
Explore 19 free Motion in One Dimension questions in ICSE Class 9 Physics. Open each question or exercise to read its content, reference answers and available explanation.
Practise Motion in One Dimension with Quill →Motion in One Dimension questions and exercises with answers
Showing questions 1–19 of 19.
Order the equations of motionRead the answer and worked solution →Which of the following is a scalar quantity?Read the answer and worked solution →A body covers equal distances in equal intervals of time. Its motion is:Read the answer and worked solution →A body falls freely under gravity. The acceleration due to gravity (g) is approximately:Read the answer and worked solution →Which of the following can be zero for a body that has moved a non-zero distance?Read the answer and worked solution →A body starts from rest and accelerates uniformly at 2 m per second squared for 5 seconds. Its final velocity is:Read the answer and worked solution →Which equation gives displacement in terms of initial velocity, acceleration and time?Read the answer and worked solution →On a displacement-time graph, what does the slope of the line represent?Read the answer and worked solution →A car decelerates uniformly from 20 m per second to rest in 4 seconds. The retardation is:Read the answer and worked solution →On a velocity-time graph, the area under the curve represents:Read the answer and worked solution →A stone is dropped from rest. After 2 seconds its velocity is approximately:Read the answer and worked solution →A body accelerates from 5 m per second to 25 m per second over 4 seconds. The distance covered is:Read the answer and worked solution →A body has zero average velocity over an interval. Which conclusion is FORCED?Read the answer and worked solution →A stone is thrown straight up with initial velocity 20 m per second. Taking g = 10 m per second squared, the maximum height reached is:Read the answer and worked solution →Sort scalars from vectorsRead the answer and worked solution →Match each motion equation to its useRead the answer and worked solution →Pick the bigger answer each roundRead the answer and worked solution →Judge these motion graph claimsRead the answer and worked solution →Order the steps to find final velocityRead the answer and worked solution →
Worked practice questions
Which of the following is a scalar quantity?
- Speed
- Velocity
- Displacement
- Acceleration
Show answer and solution
Correct answer: A. Speed
1. A scalar quantity has only magnitude with no direction.
2. Speed is the rate of change of distance, given as a single positive number.
3. Velocity, displacement and acceleration each carry a direction along with their magnitudes.
4. So speed is the scalar quantity in the list.
_Source: Selina Concise Physics ICSE Class 9, Ch 2 'Motion in One Dimension' (aplustopper.com extract)_
A body covers equal distances in equal intervals of time. Its motion is:
- Variable
- Accelerated
- Uniform
- Random
Show answer and solution
Correct answer: C. Uniform
1. Uniform motion means the body covers equal distances in equal intervals.
2. Speed and direction remain constant throughout the motion.
3. Variable motion would mean unequal distances in equal intervals.
4. So the described motion is uniform.
_Source: Selina Concise Physics ICSE Class 9, Ch 2 'Motion in One Dimension' (aplustopper.com extract)_
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