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