All Flashcards
What is the effect of a constant net force on an object's velocity?
It causes the object to accelerate.
What happens when vectors are added in the same direction?
The magnitudes are added, and the direction remains the same.
What happens when vectors are added in opposite directions?
The magnitudes are subtracted, and the direction is that of the larger magnitude.
What is a scalar quantity?
A quantity fully described by its magnitude (size) alone.
What is a vector quantity?
A quantity described by both magnitude and direction.
Define 'position' in physics.
Where an object is located.
Define 'displacement'.
Change in position (how far and in what direction).
Define 'velocity'.
Rate of change of position (speed + direction).
Define 'acceleration'.
Rate of change of velocity.
What is the vector sum also called?
Resultant vector.
What are the key differences between scalars and vectors?
Scalars: Magnitude only | Vectors: Magnitude and direction
Differentiate between distance and displacement.
Distance: Total path length traveled | Displacement: Change in position from start to end.
Differentiate between speed and velocity.
Speed: Rate of motion (scalar) | Velocity: Rate of motion with direction (vector).