Chapter 10 Flashcards
Units of _______ and _____ are units of length
Displacement & distance
Distance is measured along the path of _____
Motion
Change in position/location, or the directed distance from the initial to final location
Linear displacement
The ___ system is the predominant standard of measurement in every major country in the world except the United States
Metric
T/F: distance is a scalar, displacement is a vector
True
The ____ direction is typically defined as upward and/or to the right, with ______ regarded as downward and/or to the left.
Positive ; negative
T/F: Distance covered and displacement may be equal for a given movement
True
T/F: Distance may be greater than displacement and vice versa
False
Rate of change in location
Linear velocity
Units of speed and velocity are always units of _____ divided by units of _____.
Length and time
The rate of change in linear velocity
Linear acceleration
Speeding up or increasing in velocity
Acceleration
T/F: Acceleration can also assume a negative value
True
When acceleration is zero, velocity is _____
Constant
Occurring during a small interval of time
Instantaneous
Occurring over a designated time interval
Average
A body in free fall that is subject only to the forces of gravity and air resistance
Projectile
the form, pattern, or sequencing of movement with respect to time / also referred to as technique
Kinematics
Scalars can be described by
magnitude
Vectors have both
magnitude and direction
T/F: Displacement looks for the longest path
false; shortest
T/F: When a runner completes a lap around a 400m track, their distance traveled and their displacement are the same
False
Disp: 0m
Dist: 400m
Linear speed is a ____ quantity
scalar
Linear velocity is a ______ quantity
vector
All projectiles will follow a known path: a ________
parabola
flight path of projectile
trajectory
time point when an object becomes a projectile
release
highest point of trajectory (aka) peak
apex
the ____ component is influenced by _____ and the horizontal is not
vertical ; gravity
horizontal component of motion
range
