Science Test Word Scramble

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Question	Answer
Acceleration involves a change in what two components?	speed and direction
Any time the speed of an object increases, the object expierences	acceleration
Is the following sentence true or false? Acceleration refers to increasing speed, decreasing speed, or changing direction.	true
Deceleration is another word for negative	acceleration
Is the following sentence true or false? An object can accelerating even if the speed is constant	true
Give some examples of an something that accelerates at a constant speed	a merry go round, ferris wheel, the moon orbiting around the earth
The phrase "speeding up" in scientific language is known as	increasing speed
The phrase "slowing down" in scientific language is known as	decreasing speed
The word "turning" in scientific language is known as	changing direction
What must you calculate to determine the acceleration of an object?	you must calculate the change in velocity during each unit of time
What is the formula you use to determine acceleration?	Acceleration = Final Velocity - Initial Velocity divided by Time
What is true about calculating the acceleration of a moving object?	If an object's acceleration varies, then you can describe only average acceleration
Suppose velocity is measured in kilometers/hour and time is measured in hours. What is the unit of acceleration?	km/hr/hr
A graph shows the motion of an object that is accelerating. What happens to the speed of an object over time?	the speed of the object increases over time
The graph line is slanted and straight. What does this line show about the acceleration of an object?	it shows that the acceleration of the object has an acceleration that is constant
What is true when a graph of distance versus time is a curved line	the distance traveled by the object varies each second
When an object's distance from another object is changing,	its in motion
The basic SI unit of length is the	meter
Speed equals distance divided by	time
When you know both the speed and direction of an object's in motion, you know the	velocity of an object
You can show the motion of an object on a line graph in which you plot distance against	time
In graphing motion, the steepness of the slope depends on	how quickly or slowly the object is moving
The upper layer of Earth consists of more than a dozen major pieces called	plates
In 1,000 years, Earth's plates have moved	50 meters
What is an example of deceleration?	a car approaching a red light
A place or an object used for comparison to determine if an object is in motion is called	a reference point
Gallons, inches, and pounds are all	units
On a graph showing distance vs. time, a horizontal line represents an object that is	not moving at all
The International System of Units is used	all over the world
According to the theory of plate tectonics,	earth's plates move ever so slowly
Scientists believe that all continents were connected as recently as	250 million years ago
If you know the distance an object has traveled in a certain amount of time, you can determine	the speed of an object
In a conversion factor, what is special about the fraction used?	the denominator and numerator are equal
It is rare for any motion to	stay the same for very long
If a bicyclist travels 30 kilometers in two hours, her average speed would be	15 km/h
A reference point is assumed to be ______or not moving	stationary
A change in an object's position relative to a reference point is called_____	motion
When riding a bicycle past a building, you are not moving relative to the_______	bicycle
Suppose you are standing on a corner when a car moving toward the north passes you. If you use the car as a reference point, the direction in which you appear to be moving is toward the____	south
The distance traveled by a moving object per unit of time is called____	speed
The boundaries between the plates that make up the upper layer of Earth are cracks in the Earth's	crust
Acceleration is the rate of change in____	velocity
_____occurs when an object slows down	deceleration
If a car is speeding up, its initial speed is ____than its final speed	less
If two lines appear on the same motion graph, the line with the steeper____indicates a greater speed.	slope

Created by: 17ochinedu