Environmental Science Semester 2 Final Review
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| What does frequency of a sound wave determine? | Pitch
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| A wave will travel only as long as it has ... | Energy
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| List the Electromagnetic Spectrum in order from longest wavelength to shortest. | Radio waves, Microwaves, Inferred rays, Visible light, Ultraviolet rays, X-rays, and Gamma rays
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| The waves with the longest wavelengths in the electromagnetic spectrum are? | Radio waves
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| Which type of electromagnetic waves with the highest energy? | Gamma Rays
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| Which type of electromagnetic radiation is used to kill cancer cells? | Gamma Rays
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| What is the law that states matter can be neither created nor destroyed? | Law of Conservation of Matter
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| How many Carbon atoms are in this glucose molecule? C^6H^12O^6 | 6 atoms
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| How many Sodium atoms are present in this molecule? 5Na^3PO^4 | 15 atoms
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| A Calcium Sulfate molecule has 1 calcium (Ca) atom, 1 sulfur (S) atom, and 4 oxygen (O) atoms. What is its formula? | CaSO^4
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| When you add the charges of a compound, what do the charges need to equal? | Zero
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| What are the reactants and products in this equation. N + O^2 ---> NO^2 | Reactants- N and O^2
Product- NO^2
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| Balance this equation. N^2 + H^2 ---> NH^3 | N^2 + 3H^2 ---> 2NH^3
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| What type of reaction is this equation? MgCl^2 + 2LiBr ---> MgBr^2 + 2LiCl | Double Replacement
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| What type of reaction is this equation? C^6H^12 + 9O^2 ---> 6CO^2 + 6H^2O | Combustion
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| What type of reaction is this equation? Pb + FeSO^4 ---> PbSO^4 + Fe | Single Replacement
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| What type of reaction is this equation? CaCO^3 ---> CaO + CO^2 | Decomposition
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| What type of reaction is this equation? P^4 + 3Cl^2 ---> 2P^2Cl^3 | Synthesis
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| What are the 7 diatomic elements? | Nitrogen, Fluorine, Iodine, Chlorine, Oxygen, Bromine, and Hydrogen
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| What law says current is equal to the potential difference divided by the resistance? | Ohms Law. Potential Difference= Current x Resistance
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| What is a material that allows electrons to move easily through it, examples are Copper and Silver (Metals) | Conductor
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| What is a material that doesn't allow electrons to move easily through it, examples are plastic, glass, and wood (Non-metals) | Insulator
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| 2 positive or negative charges do what to each other? | Repel
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| What is a path that allows only one route for an electric current? | Series Circuit
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| What is a circuit that has two or more branches for electrons to follow? | Parallel Circuit
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| What is the charge and mass of Neutrons? | Neutral. 1 amu
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| What is the charge and mass of Protons? | Positive. 1 amu
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| What is the charge and mass of Electrons? | Negative. No mass
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| What is energy in the form of motion? | Kinetic energy. KE= 1/2 x Mass x Velocity^2
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| What is stored energy? | Potential energy. PE= Mass x Height x 9.8m/s^2
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| What type of energy is Chemical energy? Potential or Kinetic | Potential
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| What type of energy is Sound, Light, Electromagnetic, Mechanical, and Thermal? Potential or Kinetic | Kinetic
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| What are some other forms of energy? | Wind, Nuclear, Tidal, etc.
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| What law states that energy cannot be created nor destroyed? | Law of conservation of energy
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| As particles in an object move faster, the temperature ... | Increases
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| What type of wave moves parallel to the medium, an example would be a slinky or sound | Compressional waves
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| What type of wave moves perpendicular, an example would be ocean waves | Transverse waves
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| What is the height of the wave from rest and measures the amount of energy the wave has? | Amplitude
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| What is the lowest point of a wave? | Trough
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| What is the highest point of a wave? | Crest
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| What is the distance between a point on one wave to the identical point on the next wave? | Wavelength
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| What is the formula for a wave? | Velocity= Wavelength x Frequency
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| If the frequency is cut in half, the wavelength will ... | double
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| What is the ability of two or more waves to combine and form a new wave? | Interference (constructive)
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| What is it called when a crest hits a trough and they cancel each other out? | Destructive Interference
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| What is the term for the returning light, an example is a mirror. | Reflection
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| What is the term for the bonding light, an example is objects in water. | Refraction
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| What is the formula for power? | Power= Voltage x Current
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| What is the formula for voltage? | Voltage= Current x Resistance
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| What is the formula for current? | Current= Voltage/Resistance
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| What is the formula for resistance? | Resistance= Voltage/Current
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| What is the net accumulation of electric charges on an object? | Static Electricity
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| What is the tendency for a material to oppose the flow electrons and has a label of ohms? | Resistance
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| What is the flow of electrons through a wire or any conductor and has a label of amps? | Current
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| What produces electrical current by rotating a loop wire in a magnetic field? | Generator
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| What can increase or decrease the voltage of an alternating current? | Transformer
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| What is a reversing switch in a motor that rotates with an electromagnet? | Commutator
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| What kind of current goes in one direction? | Direct Current
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| What kind of current reverses its direction? | Alternating Current
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| What kind of object is magnetic all the time? | Permanent Magnet
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| What changes electrical energy into mechanical energy? | Electric Motor
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| What is the process by which moving a wire through a magnetic field produces an electric current? | Electrical Induction
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| What are some examples of chemical symbols? | Cl, H, F, He, H, and Sn
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| What are some examples of chemical formulas? | CO^2, H^2O, and SO^4
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| What is the subscript used for in chemical formulas? | Number of Atoms
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| What are coefficients used for in chemical reactions? | Number of units
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| What makes an element chemically stable? | Must have a full outer shell
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| What makes a compound chemically stable? | It has a neutral charge
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| What is the type of bond that transfers electrons? | Ionic bond
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| What is the type of bond that shares electrons? | Covalent bond
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| How many atoms of Chlorine are there in this formula? Ca(ClO^3)^2 | 2 atoms
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| Name this compound: Mg(SO^4) | Magnesium Sulfate
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| What makes a chemical equation/reaction balanced? | When there is the same amount of electrons on each side of the yields sign
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| What are the substances to the left of the reaction arrow called? | Reactants
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| What are the substances to the right of the reaction arrow called? | Products
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| Which law states that the number of atoms on the reactants side will equal the number of atoms on the products side? | Law of Conservation of Mass
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| What speeds up a reaction? | Catalyst
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| What slows down a reaction? | Inhibitor
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| What 3 forms do solutions come in? | Solid, Liquid, and Gas
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| What molecule is positively charged at one end and negatively charged at the other end? | Polar Molecule
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| What is the maximum amount of a solute that can be dissolved is a given amount of solvent at a given temperature? | Solubility
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| What describes how much solute is present in a solution compared to the amount of solvent? | Concentration of a solution
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| What is a substance called when it contains extra H+? | Acid
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| What is a substance called when it produces extra OH-? | Base
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| What are some examples of an Acid? | Lemon Juice, Soda, and Vinegar
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| What are some examples of a Base? | Baking Soda, Soaps, and Ammonia
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