Ch. 10 pt 1 Flashcards
__ is the geometry, pattern, or form of motion with respect to time
Kinematics
A true statement about the metric system is that it is based on the most common international unit of length, the __
meter or metre
A basketball player takes 15 seconds to dribble the ball from the opponent’s side to his team’s side, 24 meters away. Calculate her average velocity.
1.6 m/s
T/F: Along with the length of the line between 2 positions, the direction in which displacement occurs is equally important
True
What is defined as the distance covered by the time taken to cover it?
Speed
What is the change in displacement that occurs during a given period of time?
Linear velocity
A rubber completes 3 laps around a 200 m track and returns to the starting point. The runner’s displacement is __
0 m
What are the 2 most common units for speed and velocity in the metric systems?
1.) meters per second (m/s)
2.) kilometers per hour (km/hr)
A swimmer orients herself perpendicular to the parallel banks of a river. Given that the swimmer’s resultant velocity is 5 m/s and the velocity of the current is 2 m/s, calculate how far the swimmer will actually have to swim to get to the other side of the bank if the banks of the river are 16 m apart.
17.26 m
What is the mathematical representation of linear acceleration?
change of time
What is the mathematical representation of linear acceleration?
change of time
What is a common unit of acceleration in the metric system?
m/s^2
A basketball begins rolling off the court with an initial velocity of 5 m/s. If the ball has a constant acceleration of 0.5 m/s^2, how long will the ball take to stop?
10 s
What is measured at the moment of release of a javelin by a javelin thrower?
Instantaneous velocity
What is measured after an athletes completes a marathon?
Average velocity
What is the formula for speed?
change in time
What is the formula for speed?
change in time
What is the formula for linear velocity?
change in time
Alisha, an athlete, completes a 10 kilometer race in 75 minutes. Calculate her average velocity.
8 km/hr
___ is defined as the rate of change in velocity, or the change in velocity occurring over a given time interval.
Linear acceleration
Units of __ are units of length divided by units of time.
speed and velocity
Occurring during a small interval of time
Instantaneous
Occurring over a designated time interval
Average
Units of __ are units of velocity divided by units of time
acceleration
What describes the forces associated with motion?
Kinetics
What describes the appearance of motion?
Kinematics
It is measured along the path of motion
Distance
It is measured in a straight line from the initial position to the final position of a moving body
Linear displacement
