Motion in a Plane Test

Result

Motion in a Plane Test - 1

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Weekly Quiz Competition

Question 1
4 / -1

Which of the following is not a scalar quantity?

A
Temperature

B
Coefficient of friction

C
Charge

D
Impulse

Solution

Impulse (I)

Since force is a vector quantity and impulse is the product of the sudden force applied and the time interval to bring equivalent the system. So Impulse also a vector quantity which have same direction to the force applied.
Question 2
4 / -1

In Latin, the word vector means

A
Magnitude

B
Direction

C
Carrier

D
Cap

Solution

In Latin, the word vector means carrier.
Question 3
4 / -1

A vector is not changed if

A
It is displaced parallel to itself

B
It is rotated through an arbitrary angle

C
it is cross-multiplied by a unit vector

D
It is multiplied by an arbitrary scalar

Solution

When a vector is displaced parallel to itself, neither its magnitude nor its direction changes.
Question 4
4 / -1

Which of the following statements.is false regarding the vectors?

A
The magnitude of a vector is always a scalar

B
Each component of a vector is always a scalar

C
Two vectors having different magnitudes cannot have their resultant zero

D
Vectors obey triangle law of addition

Solution

The magnitude of a vector is a pure number. Each component of a vector is also a vector. The resultant of two vectors can be zero only if they have the same magnitude and opposite directions.
Question 5
4 / -1

Which of the following pairs of vectors are parallel?

A

B

C

D

Solution