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Motion Science - Motion

Maharashtra Board - STD 9 - Science (MSBSHSE - English Medium). 152 questions in this chapter.

Question types

Motion question types

152 questions across 6 question groups — pick any mix to generate a Science paper with step-by-step answer keys.

152
Questions
6
Question groups
5
Question types
Sample Questions

Motion questions

One sample from each question group in this chapter. Select any group above to see the full set with answer keys.

Q 1Fill In The Blanks.1 Mark
Fill in the blanks with suitable words:
A motorcycle has a steady _________ of $3m/s^2.$ This means that every __________ its _________ increases by __________.
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Q 6MCQ1 Mark
Which of the following could not be a unit of acceleration?
  • A
    $km/s^2$
  • B
    $cms^{-2}$
  • ✓
    $km/s$
  • D
    $m/s^2$

Answer: C.

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Q 7MCQ1 Mark
When a car runs on a circular track with a uniform speed, its velocity is said to be changing. This is because:
  • A
    The car has a uniform acceleration.
  • B
    The direction of car varies continuously.
  • C
    The car travels unequal distances in equal time intervals.
  • ✓
    The car travels equal distances in unequal time intervals.

Answer: D.

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Q 8MCQ1 Mark
The slope of a speed$-$time graph gives:
  • A
    Distance travelled.
  • B
    Velocity.
  • ✓
    Acceleration.
  • D
    Displacement.

Answer: C.

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Q 9MCQ1 Mark
$50.$ Which of the following can sometimes be 'zero' for a moving body?
$i.$ Average velocity.
$ii.$ Distance travelled.
$iii.$ Average speed.
$iv.$ Displacement.
  • A
    only $(i)$
  • B
    $(i)$ and $(ii)$
  • ✓
    $(i)$ and $(iv)$
  • D
    only $(iv)$

Answer: C.

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Q 10MCQ1 Mark
A student draws a distance$-$time graph for a moving scooter and finds that a section of the graph is a horizontal line parallel to the time axis. Which of the following conclusion is correct about this section of the graph?
  • A
    The scooter has uniform speed in this section.
  • B
    The distance travelled by scooter is the maximum in this section.
  • C
    The distance travelled by the scooter is the minimum in this section.
  • ✓
    The distance travelled by the scooter is zero in this section.

Answer: D.

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Q 16Question Answer (1 Marks)1 Mark
A satellite goes round the earth in a circular orbit with constant speed. Is the motion uniform or accelerated?

This photograph shows a man-made 'communication satellite' going round the earth in a circular orbit (or circular path). We can see the dish antennae and solar panels (made of solar cells) clearly in this photograph.

This photograph shows a watch. The tip of seconds 'hand of this watch moves rapidly on the dial of the watch. The tips of minutes' hand and hours' also move on the dial but they move slowly.
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Q 21Question Answer (3 Marks)3 Marks
A motorcyclist drives from place $A$ to $B$ with a uniform speed of $30\  km^{-1}$ and returns from place B to A with a uniform speed of $20\  km h ^{-1}$. Find his average speed.
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Q 28Question Answer (5 Marks)5 Marks
A boy walks from his classroom to the bookshop along a straight corridor towards North. He covers a distance of 20m in 25 seconds to reach the bookshop. After buying a book, he travels the same distance in the same time to reach back in the classroom. Find (a) average speed, and (b) average velocity, of the boy.
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Q 29Question Answer (5 Marks)5 Marks
A train travels the first 15km at a uniform speed of 30 km/h; the next 75km at a uniform speed of 50km/h; and the last 10km at a uniform speed of 20km/h.
Calculate the average speed for the entire train journey.
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