chapter 3 Flashcards
position
Position is the exact location of an object, usually shown with coordinates like (x, y, z).
vector
a vector is a quantity with both magnitude (size) and direction, such as displacement, velocity, or acceleration.
origin
the origin is the starting point or (0, 0) location in a coordinate system where position is measured from.
displacement
Displacement is the straight-line distance between where something starts and where it ends, including the direction.
average velocity
Average velocity is how fast something moves in a certain direction, calculated by dividing the change in position (displacement) by the time it took.
magnitude
magnitude is the size or amount of a quantity, like the length of a vector or the strength of a force, without considering direction.
scalar
A scalar is a quantity that has only magnitude (size) but no direction
speed
speed is the measure of how fast an object is moving, calculated by dividing the distance traveled by the time it takes.
velocity
Velocity is the measure of how fast something is moving and in what direction.
Scalar versus vector, what are examples or each and how do you define them?
In physics, a scalar is a quantity with only magnitude (like mass, speed, or energy), while a vector has both magnitude and direction (like displacement, velocity, or acceleration).
What is position?
Position is the exact location of an object in space, usually described using coordinates (like x, y, and z) relative to a reference point.
What is speed?
speed is how fast an object is moving
What is displacement?
displacement is the change in position of an object
What is velocity?
velocity is the rate of change of an object’s position
How are speed and velocity similar? Differ?
Speed and velocity are similar because they both measure how fast an object moves. They are different because speed has no direction, but velocity always includes direction.
What is constant velocity?
Constant velocity means an object moves at the same speed and in the same direction without changing. This means both its speed and direction stay the same over time.
