Matter/Chem/Phys-Revw
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- To change a liquid to a solid, ____ (more or less) heat must be applied?
- LESS
- When more energy is transferred to an object, what must have increased?
- its temperature
- When oxygen in the air reacts with iron to form iron oxide (rust), this is an example of a chemical change or a physical change?
- CHEMICAL CHANGE
- To measure the volume of an irregularly shaped object, you should use ...
- a graduated cylinder
-
Cutting paper is an example of
a physicl change or chemical change? - PHYSICL CHANGE
- A chemical change always produces a new substance. True or False?
- True
- In what state of matter do the molecules have the most kinetic energy?
- GAS
- A liquid becomes a solid when there is less or more energy/heat?
- LESS
- Breaking your pencil in half--exmple of chemicl or physical change?
- physical change
- Lightning is an example of what state of matter?
- PLASMA
- The mass of an object is always constant--True or False?
- True
- When molecules loose energy/heat, they move more rapidyl or slowly?
- SLOWLY
- ______ depends on the gravitational pull against that object
- WEIGHT
- In what state of matter do the molecules slip and slid around?
- LIQUID
- To measure a block of wood, which measuring tool should you use?
- a balance
- Sometimes you might hear the state of matter describe as the ______ of matter
- phase
- Burning paper is an example of a physical change or a chemical change?
- CHEMICAL CHANGE
- Weight and mass are the same thing--true or false
- false
- In which state of matter are the molecules farthest apart?
- GAS
- ______ is the pull that gravity has on an object.
- MASS
- To find the volume of a regular rectangle, you would use the formula ...
-
length x width x height
(L x W x H ) - In what state of matter are the molecules the closest?
- SOLID