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Unit 1 (Matter)
Unit 1 II
Unit 2 (Energy)
Unit 2 II
Extra words for 1-2
100
What is the definition of Matter?
What is something that which takes up space.
100
Define the law conservation of energy.
What is matter cannot be created or destroyed?
100
Define Energy.
What is the strength and vitality required for sustained physical or mental activity.
100
Define mechanical energy.
What is Energy of an object due to its motion or position.
100
(Unit 1) What is the difference between homogeneous and heterogeneous?
What is Homogeneous: is any combination of substances that contains a consistent proportion of elements throughout Heterogeneous: a material system made up of two or more different substances which are mixed but are not combined chemically
200
What is the definition of mass and weight?
What is Mass: is the amount of matter a substance contains. Weight: a system of units for expressing heaviness or mass.
200
What are the definitions of atoms, elements, and compounds?
What is Atoms: the basic unit of a chemical element. Element: is a substance that cannot be broken down by chemical means. Compound: a chemical species that is formed when two or more atoms join together chemically
200
What is the difference between kinetic and potential energy?
What is Kinetic:energy that a body possesses by virtue of being in motion. Potential: the energy possessed by a body by virtue of its position relative to others, stresses within itself, electric charge, and other factors
200
Give an example of a conductor.
What is are any metal: gold, silver, nickel, platinum, iron, etc.
300
Define Volume and Density
What is Volume:the amount of space, measured in cubic units, that an object or substance occupies. Density: the state or quality of being dense
300
What is the difference between a mixture and a pure substance?
What is A pure substance has only one kind of atom or molecule. A mixture has a number of different pure substances mixed together.
300
Define energy transformation and law conservation of energy.
What is energy transformation: is the process of changing one form of energy to another law conservation of energy: energy cannot be created or destroyed
300
Define heat.
What is A form of energy associated with the motion of atoms or molecules and capable of being transmitted through solid and fluid media by conducti
300
Define isolator and give an example.
What is a thing or substance used for insulation. Examples: Glass, Plastic, Rubber, etc.
400
What is the difference between chemical and physical properties?
What is Chemical: property or characteristic of a substance that is observed during a reaction in which the chemical composition or identity of the substance is changed Physical: any property used to characterize matter and energy and their interactions
400
What is a solid, liquid, and gas?
What is Solid: firm and stable in shape Liquid: having a consistency like that of water or oil, i.e., flowing freely but of constant volume Gas: airlike fluid substance which expands freely to fill any space available, irrespective of its quantity
400
What is the difference between temperature and thermal energy?
What is Thermal energy is the rate molecules and atoms move in a given substance. The faster the movement, the more thermal energy the object is giving off. Temperature rates this energy in Kelvin, Fahrenheit, or Celsius.
400
Define Calorie.
What is the amount of heat required at a pressure of 1 standard atmosphere to raise the temperature of 1 gram of water 1° Celsius.
400
Define convection and give an example.
What is the movement caused within a fluid. Example: a pot of water being heated to boil
500
What is the difference between a chemical and physical change? (give 3 examples)
What is Chemical Examples: a. Rusting of iron b. Combustion (burning) of wood c. Metabolism Physical Examples: a. Crushing a can b. Melting an ice cube c. Boiling water
500
Define sublimation and deposition.
What is Sublimation: change directly from the solid to the gaseous state without becoming liquid Deposition: the geological process by which material is added to a landform or land mass
500
What is the difference between non renewable and renewable resources? Do they have anything to do with fossil fuels?
What is Renewable resources are resources like farm crops or trees that grow back and renew themselves and Non-renewable are resources that they only develop once. They both can be fossil fuels. (Example: Coal)
500
Define conduction.
What is the process by which heat or electricity is directly transmitted through a substance.
500
Define radiation.
What is the emission of energy as electromagnetic waves or as moving subatomic particles.