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Physics Fill In The Blanks[1 Marks ]

PART - 1 CH - 5Work, Energy and Power · Gujarat Board (GSEB) STD 11 Science (GSEB - English Medium). 10 questions.

Questions

Fill In The Blanks[1 Marks ]

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10 questions · self-marked practice — reveal the answer and mark yourself.

Question 11 Mark
The relative speed of coming closer before the collison and the relative speed of moving away after the collision will be ...............
Answer
equal
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Question 41 Mark
According to Albert Einstein, energy and mass are equivalent quantities. That means E =...............
Answer
$m c^2$
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Question 51 Mark
In the presence of conservative forces, mechanical energy of isolated system remains. ...............
Answer
conserved
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Question 61 Mark

The change in kinetic energy of a body is the work done by the total force applied on it. Kf - Ki = ...............

Answer
$W _{\text {net }}$
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Question 91 Mark
Two vectors are perpendicular to each other then $\overrightarrow{ A } \cdot \overrightarrow{ B }=$ ...............
Answer
Zero
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Question 101 Mark
If $\vec{A}$ and $\vec{B}$ are two vectors and the angle between them is $\theta$ then $\vec{A} \cdot \vec{B}=$...............
Answer
$AB \cos \theta$
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