# CBSE Class 11 Physics Motion in a Plane MCQs

## Motion in a Plane Class 11 Physics MCQ

Class 11 Physics students should refer to the following multiple-choice questions with answers for Motion in a Plane in standard 11. These MCQ questions with answers for Grade 11 Physics will come in exams and help you to score good marks

### Motion in a Plane MCQ Questions Class 11 Physics with Answers

#### Question: Which of the following conditions are sufficient and essential for a quantity to be a vector?

• a) Magnitude, direction, and addition, subtraction multiplication and division by vector laws
• b) Magnitude, direction and combination of vectors by ordinary rules of algebra
• c) Magnitude and addition, subtraction, multiplication by ordinary rules of algebra
• d) Magnitude and direction

Answer: Magnitude, direction, and addition, subtraction multiplication and division by vector laws

• a) 4
• b) 5
• c) 3
• d) 2

#### Question:

• a)

• b)

• c)

• d) None of these

• a)

• b)

• c) –1
• d) 0

• a) 45°
• b) 180°
• c) 0°
• d) 90°

#### Question: Acceleration due to gravity

• a) polar vector
• b) a scalar
• c) a vector
• d) None of these

#### Question: The resultant of A × 0 will be equal to

• a) zero vector
• b) zero
• c) A
• d) unit vector

#### Question:

• a)

• b)

• c)

• d)

None of these

#### Question: Two vectors A and B lie in a plane, a third vector C lies outside this plane, the sum of these vectors A + B + C (a) can be zero

• a) can never be zero
• b) can be zero
• c) Both
• d) None of these

Answer: can never be zero

• a)

• b) 8.5 units
• c) 7 units
• d) 10 units

• a) 10 t
• b) 5 t
• c) 3 t
• d) 2 t

#### Question: For motion in two or three dimensions, the angle between velocity and acceleration is

• a) Any angle between 0° & 180°
• b) 180°
• c) 90°
• d) 0°

Answer: Any angle between 0° & 180°

#### Question: A particle moves in a plane with a constant acceleration in a direction different from the initial velocity. The path of the particle is a/an

• a) parabola
• b) straight line
• c) arc of a circle
• d) ellipse

#### Question: The shape of trajectory of the motion of an object is determined by

• a) All of these
• b) initial position
• c) acceleration
• d) initial velocity

Answer: All of these

#### Question: In the projectile motion, if air resistance is ignored, the horizontal motion is at

• a) constant velocity
• b) constant retardation
• c) constant acceleration
• d) variable acceleration

#### Question: A bullet is dropped from the same height when another bullet is fired horizontally. They will hit the ground

• a) simultaneously
• b) depends on the observer
• c) None of these
• d) one after the other

• a) 6 km/h
• b) 8 km/h
• c) 10 km/h
• d) 4 km/h

• a) 15 km/h
• b) 145 km/h
• c) 60 km/h
• d) 80 km/h

#### Question: Centripetal acceleration is

• a) not a constant vector
• b) a magnitude changing vector
• c) a constant scalar
• d) a constant vector

Answer: not a constant vector

#### Question: The direction of the angular velocity vector is along

• a) the axis of rotation
• b) the outward radius
• c) the inward radius
• d) the tangent to the circular path

Answer: the axis of rotation

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Click for more Physics Study Material
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