CLASS 11 - NCERT - PHYSICS - MOTION IN A PLANE |
QUIZ SMART | SCORE HIGH | GUARANTEED
ACCURACY!
What are scalar quantities? - Answer: Physical quantities which have only magnitude
which can either be negative or positive and a unit of measure.
Eg- mass, distance, average speed, temperature,
Instantaneous speed, energy, pressure
Density, charge
What are vector quantities? - Answer: Any physical quantity which have both magnitude
and direction . They follow laws of vector algebra .
Eg - momentum, velocity, impulse, angular momentum, torque, gravitational field,
electric field, magnetic field
What are parallel vectors? - Answer: If two vectors have same direction, they are
parallel to each other.
What are anti-parallel vectors? - Answer: When two vectors are in opposite direction,
they are said to e anti-parallel.
What are equal vectors? - Answer: If two vectors have same magnitude and direction,
they are parallel to each other.
What is a zero vector? - Answer: It is a vector with zero magnitude and undefined
direction.
1
APPHIA - Crafted with Care and Precision for Academic Excellence.
QUIZ SMART | SCORE HIGH | GUARANTEED
ACCURACY!
What are scalar quantities? - Answer: Physical quantities which have only magnitude
which can either be negative or positive and a unit of measure.
Eg- mass, distance, average speed, temperature,
Instantaneous speed, energy, pressure
Density, charge
What are vector quantities? - Answer: Any physical quantity which have both magnitude
and direction . They follow laws of vector algebra .
Eg - momentum, velocity, impulse, angular momentum, torque, gravitational field,
electric field, magnetic field
What are parallel vectors? - Answer: If two vectors have same direction, they are
parallel to each other.
What are anti-parallel vectors? - Answer: When two vectors are in opposite direction,
they are said to e anti-parallel.
What are equal vectors? - Answer: If two vectors have same magnitude and direction,
they are parallel to each other.
What is a zero vector? - Answer: It is a vector with zero magnitude and undefined
direction.
1
APPHIA - Crafted with Care and Precision for Academic Excellence.
