Motion — Important Questions
Gujarat Board · Class 9 · Science
42 important questions from Motion for Gujarat Board Class 9 Science, with answers. Includes multiple choice and multiple correct questions.
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Important Questions from Motion
Which of the following represent scalar quantities?
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Distance, Speed, Time
Scalar quantities have only magnitude, no direction. Distance, speed, and time are scalars. Displacement and velocity are vectors as they have both magnitude and direction.
The slope of a distance-time graph represents:
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Speed
The slope of a distance-time graph is distance divided by time, which gives speed. A steeper slope means higher speed.
Which of the following equations of motion are correct?
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v = u + at, s = ut + ½at², v² = u² + 2as
The three standard equations of motion are: v = u + at, s = ut + ½at², and v² = u² + 2as. The fourth option is incorrect.
What is acceleration?
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Rate of change of velocity
Acceleration is defined as the rate of change of velocity with respect to time. It can be due to change in magnitude or direction of velocity.
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