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Unit 5
Science
| Question | Answer |
|---|---|
| How many states does Matter exist in ? | 4 |
| List all the states that Matter exists ? | Solid, Liquid, Gas, and Plasma |
| Ionic Compounds exist as ____________. | Solids |
| Do gases have a definite shape or definite volume ? | No |
| Gas particles are ______ held close together. | Not |
| True or False ? Warmer molecules tend to move faster. Colder molecules move slower. | True |
| Define Pressure | Force of collision and the number of collisions |
| Define A Pascal | Pressure of one newton per square meter |
| Does the Average Speed of Gas Particles depend on 1 or more gases ? | 1 |
| List all the gases that the Average Speed of Gas Particles depend on | temperature and the mass |
| Define Kinetic Energy | The energy of its motion (of an object) |
| True or False ? It would be impossible to find the Average Kinetic Energy of all the particles | True |
| Is it possible or impossible to find the Average Kinetic Energy of all the particles ? | Impossible |
| In order to find the Kinetic Energy (of an object/particles) we use _________ (measure) to find it . | Temperature |
| When there is a decrease in the temperature, the particles are moving __________ __________. | More Slowly |
| While there is in increase in temperature, the particles are moving _________. | Faster |
| Define Absolute Zero | The temperature at which all molecular motion should cease and is also the zero point of the Kelvin Scale |
| Absolute Zero is represented by .... | -273*C |
| Equation used for the Kelvin Scale | K=*C+273 |
| Define Heat | Amount of energy transferred between the two objects |
| Boyle's Law states: & Example - | If Gas remains constant, the pressure exerted by a gas varies inversely as the volume. Squeezing a balloon makes the volume smaller and the pressure increases. |
| What is the equation for Boyle's Law ? | P V = P V 1 1 2 2 (Pressure 1)(Volume 1) = (Pressure 2)(Volume 2) |
| Gay-Lussac's Law states: Example - | The pressure decreases as the temperature. Leaving a basketball outside overnight in the cold, the next day ir is flat (lost temperature due to low temperature) OR a tire blowing out on a hot day because the particles move faster and increase the tire |
| Charles Law states: & Example - | The volume of a quantity of gas, held at a constant pressure, varies directly with the temperature. Parader balloons need to be partially filled with air if it is a cold morning, but a warm afternoon. |
| What is Diffusion ? | Random scattering of gas molecules going from an area of high concentration to an area of low concentration and is also the movement of gas through a small opening. |
| What is Equilibrium ? | Equal distribution |
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S732606JGRC
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