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Questions and Answers
What does a distance-time graph for uniform motion look like?
What does a distance-time graph for uniform motion look like?
An object can have zero velocity while experiencing constant acceleration.
An object can have zero velocity while experiencing constant acceleration.
True (A)
Define acceleration.
Define acceleration.
Acceleration is the rate of change of velocity of an object.
The average speed of the car during the trip is _____ km/h.
The average speed of the car during the trip is _____ km/h.
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Match the following scenarios with their corresponding descriptions:
Match the following scenarios with their corresponding descriptions:
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If a squirrel stays still while eating nuts, what does the part of the distance-time graph represent?
If a squirrel stays still while eating nuts, what does the part of the distance-time graph represent?
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Acceleration only occurs when an object's speed increases.
Acceleration only occurs when an object's speed increases.
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What was the speed of the squirrel during its journey, if it moved at a steady pace?
What was the speed of the squirrel during its journey, if it moved at a steady pace?
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What was the average velocity of Rajeev's trip from Delhi to Chandigarh and back, given the odometer readings?
What was the average velocity of Rajeev's trip from Delhi to Chandigarh and back, given the odometer readings?
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What does the path of an object look like when it is in a uniform motion?
What does the path of an object look like when it is in a uniform motion?
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Match the type of motion with their corresponding examples:
Match the type of motion with their corresponding examples:
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Displacement of an object can never be zero if the distance covered is not zero.
Displacement of an object can never be zero if the distance covered is not zero.
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What is the definition of displacement?
What is the definition of displacement?
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The average velocity of Rajeev's trip was _____ km/h.
The average velocity of Rajeev's trip was _____ km/h.
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Which of these scenarios depicts non-uniform motion?
Which of these scenarios depicts non-uniform motion?
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What is an example of motion occurring in a congested market?
What is an example of motion occurring in a congested market?
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Study Notes
Assessment Test - Physics (CBSE IX)
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Question 1 (1X4=4M): Rajeev traveled from Delhi to Chandigarh and back. The odometer reading was 4200 km at the start and 4460 km at the end of the trip. The trip took 4 hours and 20 minutes. Calculate the average velocity in km/h.
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Question 2 (1X4=4M): Describe the path of an object in uniform motion.
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Question 3 (1X4=4M): Match column I (Acceleration) with column II (Example). Options provided include: Motion of freely falling body, Car moves through congested market, Against the direction of motion, Brakes applied to train, Uniform, Non-uniform, and Train starts moving from a station.
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Question 4 (1 Assertion/Reason): Displacement of an object can be zero even if the distance covered is not zero.
Section B (2X4=8M)
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Question 5 (2X2=4M): Describe distance-time graphs for uniform and non-uniform motion.
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Question 6 (2X2=4M): A car's odometer reads 2000 km at the start and 2400 km at the end of an 8-hour trip. Calculate average speed in km/h and m/s.
Section C (1X3=3M)
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Question 7 (1X3=3M): Determine the possible situations for an object:
- Constant acceleration with zero velocity,
- Acceleration with uniform speed
- Acceleration in perpendicular direction.Provide examples for each if applicable.
Section D (1X5=5M)
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Question 8 (1X5=5M): A squirrel moves from a tree to some nuts, stays there, and returns to the tree. A graph of distance vs. time shows the squirrel's journey.
- Identify the portion of the graph where the squirrel travels away from the tree.
- Specify the graph point representing a distance of 6m from the tree base.
- Determine the segment of the graph indicating no squirrel movement.
- Identify the portion of the graph showing the squirrel returning to the tree.
- Based on the graph, compute the squirrel's speed during the entire journey.
Section E (1X4=4M)
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Question 9 (1X4=4M): Explain acceleration.
- Define acceleration.
- A car accelerates uniformly from 18 km/h to 36 km/h in 5 minutes. Find the acceleration.
- Distinguish between acceleration and deceleration.
- Give two examples of deceleration.
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Description
This quiz tests your understanding of key physics concepts relevant to CBSE IX. Questions cover topics such as average velocity, uniform motion, and distance-time graphs. Prepare to challenge your knowledge and improve your grasp of physics fundamentals.
