science
Grade-9
Easy
Question
The velocity of a body changes when ___.
- Its speed changes
- Its direction of
- motion changes
- Both 1 and 2
Neither 1 nor 2
The correct answer is: motion changes
- The velocity of the body changes when its motion changes.
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A car moves at a speed of 3 m/s. What is its acceleration?
A car moves at a speed of 3 m/s. What is its acceleration?
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In which of the following cases a body is said to be accelerating ?
Negative acceleration is known as deceleration.
In which of the following cases a body is said to be accelerating ?
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Negative acceleration is known as deceleration.
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The distance of an object ___ be zero but/and its displacement ____ be zero.
The distance of an object ___ be zero but/and its displacement ____ be zero.
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Displacement is the ____ distance between two points.
Displacement is the ____ distance between two points.
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Uniform circular motion is a/an ___ motion.
Uniform circular motion is a/an ___ motion.
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In a uniformly accelerated motion, which of the following changes?
In a uniformly accelerated motion, which of the following changes?
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In a uniform motion, which of the following remains constant?
In a uniform motion, which of the following remains constant?
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The SI unit of measurement of velocity and acceleration are ____ and ____ respectively.
The SI unit of measurement of velocity and acceleration are ____ and ____ respectively.
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The velocity-time graph drawn by Mona turned out to be a straight line parallel to the x-axis. Which of the following is true about the body’s motion?
a. The body did not make any displacement
b. The body’s velocity was constant
c. The body made a non-zero displacement
d. The body is at rest
The velocity-time graph drawn by Mona turned out to be a straight line parallel to the x-axis. Which of the following is true about the body’s motion?
a. The body did not make any displacement
b. The body’s velocity was constant
c. The body made a non-zero displacement
d. The body is at rest
scienceGrade-9
science
The total displacement of the body is ____ m.
The total displacement of the body is ____ m.
scienceGrade-9
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The displacement of section C is ____ m.
The displacement of section C is ____ m.
scienceGrade-9
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The graph of the following data will be a _____.
The graph of the following data will be a _____.
scienceGrade-9
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The acceleration of section C is ____ m/s2.
The acceleration of section C is ____ m/s2.
scienceGrade-9
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A body starts from the rest and is in a uniformly accelerated motion. The coordinates of the endpoint of its graph are (x, y). Which of the following is the correct formula for the displacement of the body?
A body starts from the rest and is in a uniformly accelerated motion. The coordinates of the endpoint of its graph are (x, y). Which of the following is the correct formula for the displacement of the body?
scienceGrade-9
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The following data table represents which kind of motion?
The following data table represents which kind of motion?
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