The Properties of Matter
Vocabulary- Property
A characteristic that helps identify an object
Vocabulary- What are molecules?
The smallest particle of a substance that has the same properties as the substance.
Vocabulary- What is elapsed time?
Length of time that passes from one event to another
Vocabulary- What is a joule?
Metric unit of work
Vocabulary- What does it mean to contract?
To become smaller in size.
To measure mass you use a ___?
Balance
What is the four states of matter?
Solid, liquid, gas and plasma
What formula can you use to find speed?
Speed= distance/time
What formula can you use to find how much work was done?
Work= Force x Distance
What temperature scale do scientists use?
Celsius scale
How can you find volume?
Length x width x height
what common compound does table salt have? (Hint pg 61)
sodium and chlorine
what formula can you use to find force?
Mass x acceleration
Name 3 forms of energy
Chemical, Heat, Mechanical, Nuclear, Raidant, Electrial
How do you write fifty-six degrees Fahrenheit?
56o F
Are mass and weight the same thing?
No.
How do you find a mass number?
mass number= number of protons + number of neutrons
What are the three laws of motion?
1st- law of inertia
2nd- law of acceleration
3rd- equal and opposite reactions
How can you find work input?
Fe X de
If a cup and a large bowl both have the same amount of boiling water, which one is giving off more heat?
the large bowl
Find the density of an object with a mass of 50 grams and a volume of 25 cm3 Hint (pg 42)
2 g/cm3
How many protons does oxygen have?
8 protons
what term describes the force of attraction between any two objects that have mass?
Gravity
What is the mechanical advantage of a lever with an effort arm of 3.2 m and a resistance arm of 0.8 m?
MA= 4
Calculate the amount of heat need to change 1 gram of water by 8 degrees?
8 calories