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Chapter 2 and 3 quiz
| Question | Answer |
|---|---|
| What is a meniscus? | the curve at the surface of a liquid |
| What is matter? | anything that has mass and takes up space. |
| what is volume mesured in? | liters and mililiters |
| how do you find the volume of an irregularly shaped object? | water displacement |
| waht is the difference between weight and mass? | mass is how much matter is in something, and weight is the amount of gravitational force of the object. |
| what is weight measured in? | newtons |
| the tendency of matter to resist change in motion | inertia |
| can physical properties be measured without changing the matters energy? | yes |
| what are some examples of physical properties? | thermal conductivity, state, density, solubility, ductibliity, malleablity |
| the amount of maa in the volume of a substance | density |
| what is the formula for density? | m/v |
| do physical changes form new substances? | no |
| do physical changes change the identity of the matter involved? | no |
| what are some signs of a chemical change? | change in odor, production of heat, fizzing |
| can chemical changes be easily reversed? | no |
| mass is used to measure -- and --. | inertia and weight |
| Physical or Chemical? asprin is crushed into fine powder | physical |
| Physical or chemical? | physical |
| Physical or Chemical? mixing sugar and water | physical |
| physical or chemical? apple rots on the ground | chemical |
| physical or chemical? a tree burns to from ashes | chemical |
| physical or chemical? baking soda reacts with vinegar and forms a gas | chemical |
| the physical froms in which a substance can exist | states of matter |
| what is a solid? | state of matter with a definite shape and volume |
| what is it called when the particles of a solid are orderly aligned? | aystalline |
| what is it called when the particles of a solid are not orderly aligned? (wax,glass,rubber) | amorphous |
| what is a liquid? | state of matter that has a definite volume but takes the shape of its container |
| what is the force that acts on the particles at the surface of a liquid? | surface tension |
| what is the resistance of liquids to flow? | viscostity |
| what is gas? | state of matter that has no definite shape or volume |
| can the amount of space between gas particles change? | yes |
| what is the measure of how fast the particles are moving? | temperature |
| what is the number of times the particles of gas hit their container called? | pressure |
| what is the amount of force exerted on a given area of surface called? | pressure |
| what does boyles law state? | for a fixed amount of gas at a constant temperature the volume of the gas is inversely related to the pressure |
| what does charles law state? | for a fixed amount of gas at a constant pressure, the volume of the gas changes in the same way the the temperature of the gas changes |
| what is the change of a substance from one physical form to another called? | change of state |
| there is a different amount of --- at different states | energy |
| what is melting? | the change of state from a solid to a liquid |
| what is the temperature at which a substance changes from a solid to a liquid? | melting point |
| what is freezing? | change of state from a solid to a liquid |
| what is the temperature at which a liquid changes into a solid? | freezing point |
| what kind of change is freezing and why? | endothermic |
| what is an endothermic change? | when energy is added to the substance as it changes |
| what is an exothermic change? | when energy is removed from the substance as it changes |
| what is evaporation? | the change of a substance from ma liquid to a gas |
| what is the change of a liquid to a vapor throughout the liquid? | boiling |
| what is atmospheric pressure? | the outside pressure on the bubbles (in boiling) |
| what is condensation? | the change of a state from a gas to a liquid |
| what is sublimation? | the change of state in which a solid changes directly into a gas |
| if you gain energy, do the temperature or state change? | yes |
Created by:
kfran0112
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