Podcast
Questions and Answers
Which of the following is a scalar quantity?
Which of the following is a scalar quantity?
- Displacement
- Velocity
- Speed (correct)
- Acceleration
What is the magnitude of a unit vector?
What is the magnitude of a unit vector?
- Equal to the magnitude of its associated vector
- Zero
- Negative one
- One (correct)
What is the result of adding a null vector to another vector A?
What is the result of adding a null vector to another vector A?
- The negative of vector A.
- A vector perpendicular to A.
- The vector A remains unchanged. (correct)
- A null vector.
If vector A makes an angle $\theta$ with the x-axis, what is $A_x$?
If vector A makes an angle $\theta$ with the x-axis, what is $A_x$?
What is the direction of $\lambda$A if $\lambda$ is a positive real number?
What is the direction of $\lambda$A if $\lambda$ is a positive real number?
Which of the following is the correct expression for the average velocity $\vec{v}$?
Which of the following is the correct expression for the average velocity $\vec{v}$?
According to the associative law of vector addition, which of the following statements is true?
According to the associative law of vector addition, which of the following statements is true?
If $\lambda$ is negative, what is the direction of $\lambda$A?
If $\lambda$ is negative, what is the direction of $\lambda$A?
Flashcards
Scalar Quantities
Scalar Quantities
Quantities that have only magnitude, without direction.
Vector
Vector
A mathematical object with both magnitude and direction.
Head-to-Tail Method
Head-to-Tail Method
Adding vectors end-to-end to find the resultant vector.
Commutative Law (Vector Addition)
Commutative Law (Vector Addition)
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Null Vector
Null Vector
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Vector Subtraction
Vector Subtraction
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Unit Vector
Unit Vector
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Position Vector
Position Vector
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