Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Properties of Matter
unit 2 test
| Question | Answer |
|---|---|
| What is matter? | objects that take up space and have mass |
| What are the 3 properties of matter? | density, mass volume |
| What is Mass? | a measure of the amount of matter in an object |
| How do we measure mass? | we use a triple beam balance |
| What is the unit of measurement of mass? | grams |
| Define volume | the amount of space in an object |
| How do you find the volume of a solid? | V= LxWxH ; measured in cm3 |
| How do you find the volume of a liquid? | use a graduated cylinder; measured in mL |
| How do you find the Volume of an Irregular Object? | V= Final Volume - Initial Volume |
| Define Density | the amount of mass packed into a certain volume |
| What is the formula for density? | D= M / V |
| How can we tell if an object will sink or float? | float= density less than water ( less than 1.0) sink= density more than water ( more than 1.0) |
| What is the density of water? | 1.0 g/mL |
| When an object is cut in half, what property does not change? Why? | Density does not change. SInce there is less mass in a smaller amount of volume, you get the same amount for the density. |
| Define Weight | the measurement of the pull of gravity on an object |
| How do we measure weight? | on a scale |
| What is difference between weight and mass? | -the mass of an object does not change when an object's location changes - weight, on the other hand, does change with location |
| What are the 3 states of matter? | solids, liquids, gas |
| Characteristics of SOLID | atoms of a solid are packed closely together. They bond together and do not change shape. |
| What is the shape of a solid? | definite shape |
| What is the volume of a solid? | definite volume |
| what are some examples of solids? | ice |
| Characteristics of a LIQUID | teh atoms in a liquid are close together and slide around |
| What is the shape of a liquid? | no definite shape; takes shape of container |
| what is the volume of a liquid? | definite volume |
| What are some examples of a liquid? | soda, river, water |
| Characteristics of GAS | the atoms in a gas are spread out and move freely |
| What is the shape of a gas? | no definite shape |
| what is the volume of a gas? | no definite volume |
| what are some examples of gases? | oxygen, helium, carbon dioxide |
| Phase Change: Freezing | the substance changes from a liquid to a solid |
| Phase Change: Melting | the substance changes back from the solid to the liquid |
| Phase Change: Condensation | the substance changes from a gas to liquid |
| Phase Change: Evaporization | the substance changes from a liquid to a gas |
| How do substances change phases/states? | during a phase change, energy is either absorbed or released |
| During what phase change is energy being increased? | Solid-->Liquid Liquid-->Gas |
| What is happening when energy is being increased? | particles are moving faster as energy is absorbed |
| During what phase change is energy being decreased? | Gas-->Liquid Liquid--> Solid |
| WHen is energy being absorbed? | melting and evaporation heat is gained |
| what happens to the molecular movement when energy is absorbed and heat is gained? | during thesis phase changes, molecular movement increases |
| What happens to the molecules when energy is absorbed and heat is gained? | molecules become less tightly bonded and there is a weaker attraction |
| When is energy released? | during freezing and condensation when energy is released, heat is lost |
| what happens to the molecular movement when energy is released and heat is lost? | during these phases stages, molecular movement decreases |
| what happens to the molecules when energy is released and heat is lost? | molecules become more tightly bonded and there is a strong attraction |
| What is the relationship between temperature and energy? | Increase in temperature, Increase in energy ( movement of molecules) |
| How does a solid change into a liquid? | melting |
| How does a liquid change into a solid? | freezing |
| How does a liquid change into a gas? | evaporation |
| How does a gas change to a liquid? | condensation |
| What is condensation? | you can see condensation; change of gas into liquid |
| What are real life examples of condensation? | water droplets on a shower door after show, moisture on the outside of a cold gas or can |
| What is evaporation? | process by which water changes from a liquid to a gas |
| what are real life examples of evaporation? | water boild and turns into steam floor drying after you mop it |
| What is the boiling point of water? | 100 degrees Celcius 212 degrees Farenheit |
| What is freezing point of water? | 0 degrees Celcius 32 degrees Farenheit |
| WHat is the relationship between freezing and energy? | when a liquid is cooled, the average energy of the molecules decrease |
| Melting Point, Boiling Point, Freezing POint | temperature at which soid changes into a liquid ( melting), liquid into a solid ( freezing), or liquid changes to a gas ( boiling) |
| What is a physical change? | a change that alters the appearance of an object; no new substance is formed |
| what is an example of a physical change? | bending, crushing, ripping, dissolving S-->L-->G is an example. No new substance, just a change in their appearance |
| What is a chemical change? | a change in matter that produces one or more new substances |
| What is an example of a chemical change? | breaking down water into hydrogen rusting of fence coal bruning in a furnace |
Created by:
MsRegan
Popular Science sets