Flashcards in Kinematics Deck (42)
What is the standard measure for distance/length?
What is the standard measure for time?
What is the standard measure for mass?
In the world of classical mechanics, objects are _________________ and move __________.
In classical mechanics, all objects are considered ___________________.
Point-like mass having no real size and a finite mass
Quantity with magnitude and units that is always positive
Quantity with magnitude, units and direction
T/F Scalar quantities can be positive or negative.
False. Scalar quantities are always positive.
T/F Vector quantities can be positive or negative.
True. Depends on which way you are going.
Total length of path traveled
Distance is a _______________ value
Distance is measured in ______________.
Total change in position; how far you end up from where you began
Displacement is a __________ value
T/F Displacement can be positive or negative.
True. Displacement is a vector value.
Displacement is measured in __________.
1 meter is equal to about how many feet?
The rate at which distance is covered
Speed is a ________________ value
T/F Speed can be either positive or negative.
False. Speed is a scalar value. It is always positive.
Speed and Velocity are both measured in what?
Average Speed (formula)
(Speed=total distance divided by total time)
Speed of light
Distance traveled (formula)
(Distance=speed x time)
The rate of change in position, or the rate at which displacement is covered.
Velocity is a _____________ quantity.
T/F: Velocity must be positive.
False. Velocity is a vector quantity, so it can be positive or negative, depending on which way you move.
Velocity is based on what?
Displacement over time