Physics - Unit 1 D cont. 1/21
Flashcard
•
Physics
•
10th - 12th Grade
•
Practice Problem
•
Hard
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1.
FLASHCARD QUESTION
Front
What is a scalar?
Back
A scalar is a quantity that has magnitude only and no direction.
2.
FLASHCARD QUESTION
Front
What is the resultant of two or more vectors?
Back
The resultant is the sum of the vectors.
3.
FLASHCARD QUESTION
Front
Define magnitude in the context of physics.
Back
Magnitude refers to the size or quantity of a physical property, such as length, mass, or speed, without regard to its direction.
4.
FLASHCARD QUESTION
Front
What is a vector?
Back
A vector is a quantity that has both magnitude and direction.
5.
FLASHCARD QUESTION
Front
What is the difference between scalar and vector quantities?
Back
Scalar quantities have only magnitude (e.g., temperature, mass), while vector quantities have both magnitude and direction (e.g., velocity, force).
6.
FLASHCARD QUESTION
Front
What is the formula for calculating the resultant of two vectors at an angle?
Back
The resultant R can be calculated using R = √(A² + B² + 2AB cos(θ), where A and B are the magnitudes of the vectors and θ is the angle between them.
7.
FLASHCARD QUESTION
Front
What is the significance of direction in vector quantities?
Back
Direction is crucial in vector quantities as it determines how the vector interacts with other vectors and affects the resultant.
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