Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
15 Cards in this Set
- Front
- Back
|
sentence
|
When you know both the speed and direction of an object's motion, you know the velocity of the object.
|
|
|
acceleration
|
the rate at which velocity is changes
|
|
|
sentence
|
An object is in motion if it changes position relative to a reference point.
|
|
|
velocity
|
speed in a given direction
|
|
|
sentence
|
To determine the acceleration of an object, you must calculate the change in velocity during each unit of time.
|
|
|
SI
|
a system of measurement based on multiples of ten and on established measures of mass, length, and time
|
|
|
plate
|
one of the major pieces that make up the Earth's upper layer
|
|
|
motion
|
the state in which one object's distance from another is changing
|
|
|
meter
|
the basic SI unit of length
|
|
|
how many cm in a km?
|
10,000 cm in a km
|
|
|
speed
|
the distance an object moves in one unit of time
|
|
|
what units is speed measured in?
|
a plate-cm or mm
a car-miles |
|
|
reference point
|
a place or object that is used for comparision to deterine if something is in motion
|
|
|
sentence
|
According to their explantion, known as the the theory of plat techonics, Earth's plates move ever so slowly in various directions.
|
|
|
what units is acceleration measured in?
|
meters per hour square
|
