Physics 1

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.