| A | B |
|---|
| When an object's distance from another object is changing | motion |
| How fast does Earth orbit the sun? | 30 km/second |
| A place or object used for comparison to determine if something is in motion | reference point |
| Liters, meters, and grams are all | units of measurement |
| The basic SI unit of length is the | meter |
| The basic SI unit of mass is | gram |
| The basic SI unit of volume is | liter |
| The International System of Units is used | world-wide |
| If you know the distance an object has traveled in a certain amount of time, you can determine | speed of object |
| If you know the speed an object traveled a certain amount of time you can determine the | distance traveled |
| If you know the speed traveled and the distance traveled by an object you can determine | amount of time |
| Speed equals distance divided by | time |
| Time equals distance divided by | speed |
| Distance equals time multiplied by | speed |
| Distance equals speed multiplied by | time |
| If the speed of an object does NOT change, the object is traveling at a(n) | constant speed |
| If a bicyclist travels 30 kilometers in two hours, her average speed is | 15 km/hour |
| If you know a car traveled 100 kilometers in 2 hours, you can find its | average speed |
| If you know a car traveled 100 kilometers in 2 hours, what is its average speed? | 50 km/h |
| A train that travels 200 kilometers in 4 hours is traveling at what average speed? | 50 km/h |
| You can show the motion of an object on a line graph in which you plot distance against | time |
| You can show the motion of an object on a line graph in which you plot time against | distance |
| In graphing motion, the steepness of the slope depends on | the speed of the object |
| On a graph showing distance versus time, a horizontal line represents an object that is | not moving at all |
| On a graph showing distance versus time, an object that does not move will have what kind of slope to its line? | no slope |
| On a graph showing distance versus time what kind of line would represent an object that is accelerating? | sloping upward |
| On a graph showing distance versus time what kind of line would represent an object that is decreasing its speed? | sloping downward |
| If an glacier moves 10 centimeters every year, how far will it move in 500 years? | 50 meters |
| If a turtle moves 15 meters every day how far will it move in 3 days? | 45 meters |
| In a conversion factor, what is special about the fraction used? | the denominator and numerator are equal |
| In the conversion factor that has a denominator of 50, what is the numerator? | 50 |
| In a conversion factor where the numerator is 100, the denominator is | 100 |
| What is the rate at which velocity changes? | acceleration |
| What changes if the object is changing direction but not changing speed? | velocity |
| When the moon orbits Earth, its ____________ changes | velocity |
| The determine the acceleration rate of an object, you must calculate the change in velocity during each unit of | time |
| In an acceleration graph showing speed versus time, a straight line shows the acceleration is | constant |
| In an acceleration graph showing speed versus time, a line curving up shows the acceleration is | increasing |
| In an acceleration graph showing speed versus time, a line curving downward shows the acceleration is | decreasing |
| A place or object used for comparison to determine if an object is in motion. | reference point |
| The state in which one object's distance from another is changing. | motion |
| The distance an object travels in one unit of time. | speed |
| Speed in a given direction. | velocity |
| The steepness, or slant of a line on a graph. | slope |
| The rate at which velocity changes. | acceleration |
| One of the major pieces that make up Earth's upper layer p. 296 | plate |
| Term used to describe a relationship between variables whose graph is a straight line p. 306 | linear |
| Term used to describe a relationship between variables whose graph is not a straight line p. 306 | nonlinear |
| Base unit of length in the System International | meter |
