Study your flashcards anywhere!

Download the official Cram app for free >

  • Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key

image

Play button

image

Play button

image

Progress

1/15

Click to flip

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