Scalars and Tensors MCQs with Answers

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Scalars and Tensors Online Quiz

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• Test Name: Scalars and Tensors MCQ Quiz Practice
• Type: Quiz Test
• Total Questions: 40
• Total Marks: 40
• Time: 40 minutes

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Scalars and Tensors

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1 / 40

What is the number of components in a rank-0 tensor in 3D space?

3

9

1

2 / 40

What is the dimensionality of a scalar quantity?

2

1

3 / 40

What is the displacement if an object moves 5 meters north and then 3 meters south?

2 meters south

8 meters south

2 meters north

4 / 40

What is the result when a vector is multiplied by a vector?

A vector

A scalar

A tensor

5 / 40

What is the result when a tensor is multiplied by a tensor?

A vector

A scalar

A tensor

6 / 40

What is the direction of a vector with components (-3, -4, -5)?

Along the negative x-axis

Along the negative z-axis

Along the negative y-axis

7 / 40

What is the net force acting on an object if two forces of 5 N and 7 N act in the same direction?

2 N

12 N

35 N

8 / 40

Which of the following is an example of a scalar quantity?

Displacement

Temperature

Force

9 / 40

Which of the following is a tensor of rank 2?

Force tensor

Stress tensor

Speed tensor

10 / 40

What is the magnitude of a vector with components (3, 4, 5)?

7.071 units

3 units

5 units

11 / 40

What is the resultant displacement if two displacements of 3 meters and 4 meters are in the same direction?

1 meter

12 meters

7 meters

12 / 40

What is the result when a vector is multiplied by a tensor?

A scalar

A tensor

A vector

13 / 40

What is the result when a scalar is multiplied by a vector?

A vector

A scalar

A tensor

14 / 40

What is a vector?

A physical quantity with both magnitude and direction

A physical quantity with only direction

A physical quantity with only magnitude

15 / 40

Which of the following is an example of a tensor quantity?

Mass

Speed

Stress

16 / 40

What is the direction of the resultant vector if two vectors are added together and their magnitudes are equal?

Same as the original vectors

Opposite to the original vectors

Perpendicular to the original vectors

17 / 40

What is the result when a scalar is multiplied by a tensor?

A tensor

A vector

A scalar

18 / 40

What is the acceleration of an object if its velocity changes from 10 m/s to 20 m/s in 5 seconds?

4 m/s²

2 m/s²

10 m/s²

19 / 40

What is a tensor?

A physical quantity with both magnitude and direction

A physical quantity with only magnitude

A mathematical object representing physical quantities

20 / 40

What is the speed of an object if it covers 100 meters in 20 seconds?

5 meters per second

20 meters per second

100 meters per second

21 / 40

What is the net force acting on an object if two forces of 5 N and 7 N act in opposite directions?

35 N

2 N

12 N

22 / 40

What is the magnitude of a scalar called?

Tensor

Vector

Scalar

23 / 40

What is the magnitude of a vector with components (-3, -4, -5)?

3 units

5 units

7.071 units

24 / 40

What does a scalar quantity represent?

Direction

Both magnitude and direction

Magnitude

25 / 40

What is the number of components in a rank-1 tensor in 3D space?

3

6

9

26 / 40

What is the number of components in a rank-2 tensor in 3D space?

9

3

6

27 / 40

What is the net force acting on an object if two forces of 5 N and 7 N act perpendicular to each other?

2 N

35 N

8.60 N

28 / 40

What is a scalar?

A physical quantity with both magnitude and direction

A physical quantity with only magnitude

A mathematical object representing physical quantities

29 / 40

What is the direction of a vector with components (3, 4, 5)?

Along the positive y-axis

Along the positive z-axis

Along the positive x-axis

30 / 40

What type of quantity is temperature?

Scalar

Tensor

Vector

31 / 40

What is the resultant displacement if two displacements of 3 meters and 4 meters are in opposite directions?

12 meters

7 meters

1 meter

32 / 40

What is the velocity of an object if it covers 100 meters in 20 seconds westward?

20 meters per second eastward

100 meters per second westward

5 meters per second westward

33 / 40

What is the dimensionality of a vector quantity?

3

1

2

34 / 40

Which of the following is a tensor quantity?

Mass

Stress

Speed

35 / 40

What is the acceleration of an object if its velocity changes from 10 m/s east to 20 m/s west in 5 seconds?

-2 m/s²

-10 m/s²

4 m/s²

36 / 40

What is the dimensionality of a tensor quantity?

1

2 or more

37 / 40

Which of the following is a scalar quantity?

Velocity

Force

Time

38 / 40

What is the result when a scalar is multiplied by a scalar?

A tensor

A vector

A scalar

39 / 40

What is the momentum of an object with a mass of 10 kg and a velocity of 5 m/s?

2 m/s²

50 kg·m/s

15 kg·m/s

40 / 40

What is the displacement if an object moves 5 meters east and then 3 meters west?

2 meters west

8 meters west

2 meters east

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