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Inertia
The resistance of an object to changes in its state of motion.
Volume of a Cube
Volume equals the side length cubed.
Volume of a Cylinder
Volume equals pi times the square of the radius times the height.
Volume of a Sphere
Volume equals four-thirds times pi times the cube of the radius.
Density Formula
Density equals mass divided by volume.
Mass Formula
Mass equals density multiplied by volume.
Volume Definition
The amount of space occupied by a substance.
Volume Unit
Cubic meters or liters.
Density Definition
The mass per unit volume of a substance.
Density Unit
Kilograms per cubic meter or grams per cubic centimeter.
Properties of Matter
Liquids and gases are defined by their occupied volume.
Mass
The amount of matter in an object.
Physical Properties
Visible and measurable characteristics such as color, shape, texture, and boiling point.
Chemical Properties
Related to the chemical composition of a material, such as reactivity and flammability.
Solid
Fixed volume and fixed shape.
Liquid
Fixed volume but shape is not fixed.
Gas
Neither volume nor shape is fixed.
Density of Air
Approximately 1.225 kilograms per cubic meter at sea level and 15 degrees Celsius.
Density of Water
One thousand kilograms per cubic meter or one gram per cubic centimeter.
Distance Definition
The total length between two points.
Displacement Definition
The shortest direct path between two points.
Speed Definition
The rate of change of position.
Speed Formula
Speed equals distance divided by time.
Speed Unit
Meters per second.
Velocity Definition
The rate of change of displacement with direction.
Velocity Formula
Velocity equals displacement divided by time.
Velocity Unit
Meters per second.
Uniform Speed
Equal distance covered in equal intervals of time.
Non-Uniform Speed
Unequal distances covered in equal intervals of time.
Acceleration Definition
The rate of change of velocity.
Acceleration Formula
Acceleration equals the change in velocity divided by time.
Acceleration Unit
Meters per second squared.
Positive Acceleration
Velocity increases over time.
Negative Acceleration
Velocity decreases over time.
Average Speed Formula
Average speed equals total distance divided by total time.
Final Velocity
Final velocity equals initial velocity plus acceleration times time.
Distance Traveled
Distance equals initial velocity times time plus one-half times acceleration times the square of time.
Velocity Squared
The square of final velocity equals the square of initial velocity plus two times acceleration times distance.
Final Velocity (context)
Refers to the object's speed at the end of motion.
Initial Velocity (context)
Refers to the object's speed at the start of motion.
Acceleration (context)
The rate of change of velocity.
Time Interval
The duration over which motion occurs.
Distance Traveled (context)
The total displacement over time.
Note 
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