Class 11 Physics · Chapter 2 · Test 1
Vectors and Motion Equations
41 MCQs This test covers scalars and vectors, rectangular components, and the scalar and vector products with their characteristics. It also covers the three equations of motion, their graphical derivations and motion under gravity.
41 questions · 35 min · 41 marks
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Sample questions
The first 5 of 41. Try each one, then tap to see the answer.
Question 1
The angle at which the dot product of two vectors becomes equal in magnitude to their cross product is:
- A0 degrees
- B30 degrees
- C45 degrees
- D60 degrees
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Answer: C
AB cos(theta) = AB sin(theta) when tan(theta) = 1 so theta = 45 degrees.
Question 2
The scalar product of two vectors is maximum if they are:
- APerpendicular
- BParallel
- CAt 45 degrees
- DAt 90 degrees
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Answer: B
A.B = AB cos(theta) is maximum when theta = 0 degrees i.e. when the vectors are parallel.
Question 3
Physical quantities that have magnitude only and no direction are called:
- AVectors
- BScalars
- CComponents
- DResultants
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Answer: B
Scalars are completely described by magnitude (size or amount) without any direction.
Question 4
Which of the following is a scalar quantity?
- ADisplacement
- BVelocity
- CTime
- DForce
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Answer: C
Time (like speed and energy) has magnitude only so it is a scalar.
Question 5
A vector quantity requires for its complete description:
- AMagnitude only
- BDirection only
- CMagnitude as well as direction
- DA unit only
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Answer: C
Vectors need both magnitude and direction.
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