science term 2

• What are the three main states of matter?

  Solid, Liquid, Gas
• What are the four main states of matter?

  Solid, Liquid, Gas, Plasma
• What is non-matter often referred to as in particle physics?


  Energy
• What is mass?


  The amount of matter in an object or particle.
• What is the difference between mass and weight?


  Mass is the amount of matter in an object, while weight is the force exerted on an object by gravity.
• What changes in a non-constant gravitational field?


  Weight (W) changes due to changing gravitational acceleration (g)
• What is the amount of three-dimensional space occupied by an object or substance called?

  Volume
• What is density measured in?


  Units such as kilograms per cubic meter (kg/m^3) or grams per cubic centimeter (g/cm^3)
• What is none-matter?


  A concept that refers to substances or materials that do not interact with light or electromagnetic radiation, making them invisible or undetectable
• Difference between mass and weight


  Mass is constant while weight is non-constant
• Volume and density difference


  volume occupies space as its a 3d object however density is mass of a object compared to its volume.
• What is non-matter


  Non-matter are concepts and they are usually energy they also cant be seen which means they dont take up space
• How can mass change?


  Even though mass is constant it can change when extreme energy is given or taken away impacting the mass
• what is mass


  Mass is the total amount/volume of matter in a object
• What is density?


  Density is mass compared to the volume
• Density


  Measure of mass per unit volume; defined as mass divided by volume; units: g/cm³, kg/L, lb/ft³
• Density and Composition


  Density is dependent on the composition and structure of an object or substance, not just its size.
• What is the definition of density?


  Density is the mass of a substance per unit volume.
• Why is density an important concept in physics, chemistry, and engineering?


  It helps understand the behavior and properties of different materials.
• What is the formula for calculating density?

  $\text{Density} =$$\frac{\text{Mass}}{\text{Volume}}$
• What does mass represent in the density formula?


  Mass is the amount of substance measured in grams (g) or kilograms (kg).
• What does volume represent in the density formula?


  Volume is the space occupied by the substance, measured in cubic centimeters (cm³) or liters (L).
• How does density relate to mass and volume?


  Density is directly proportional to mass and inversely proportional to volume.
• If an object has a mass of 10 grams and a volume of 2 cubic centimeters, what is its density?


  $5 \text{ g/cm}^3$
• What are the common units for measuring density?


  • Grams per cubic centimeter (g/cm³) for solids and liquids<br>- Kilograms per cubic meter (kg/m³) for gases<br>- Pounds per cubic foot (lb/ft³) in the US
• What unit is most appropriate for measuring the density of a metal like iron?


  Grams per cubic centimeter (g/cm³).
• Maniscus


  A structure or band of tissue connecting the tail vertebrae of a vertebrate.
• What is the maniscus?


  A fibrous structure connecting the caudal vertebrae (tail bones) of a vertebrate.
• Function of the maniscus


  To maintain the shape and mobility of the tail, allowing for balance and communication.
• Development of the maniscus


  ard 4:

  <front>Development of the maniscus</front> <back Formed during embryonic development and present in many vertebrates, including humans.
• Location of the maniscus


  Between the coccyx (tailbone) and the sacrum (pelvis) of a vertebrate.
• Menscius in science


  A curved shape or surface of a material, often found in liquids or gases.
• Type of meniscus


  Liquid surface: a concave shape formed by surface tension, Air-liquid interface: a curved surface between air and liquid, Gaseous surface: a curved shape in a gas.
• Where menisci form


  At the interface between air and a liquid, or within a liquid itself, such as in a glass of water or a bubble in a solution.
• Surface tension


  The energy required to increase the surface area of a liquid.
• Causes of surface tension


  The imbalance of intermolecular forces between molecules at the surface compared to those within the bulk of the liquid.
• Effects of surface tension


  Tendency to form droplets, unequal spreading, unique behavior at interfaces.
• Definition of surface tension


  The energy required to increase the surface area of a liquid.
• Direction of surface tension


  Tries to minimize the surface area of the liquid.
• Units of surface tension


  Millinewtons per meter (mN/m), dyne per centimeter (dyn/cm)