Physical Science Final Exam

When this type of force acts on an object, it accelerates

What is a pure substance?

Atoms that have the same number of protons, but have different numbers of neutrons

The movement of an object toward Earth solely because of gravity

The measure of gravitational force exerted on an object

A particle with a positive charge & found in the nucleus of the atom

The amount of matter in an object

Not able to be divided

Newton's First Law of Motion

The overall force acting on an object after all the forces are combined

Chocolate Chip Cookie Model

Ability to be drawn into wires

Computed for a particular instant

Anything that has mass and takes up space

Number written below and to the right of a chemical symbol in a formula

The amount of matter in a given space or volume

Signs of a chemical change: change in color, change in odor, bubbling, production of cold, formation of a precipitate

Newton's Third Law of Motion

Reaction in which energy is released; feels warm; energy is released as a product

Can be hammered into thin sheets; structurally manipulative

What are the properties of gas(in regards to shape and volume)?

Is a center-directed force that continuously changes the direction of an object to make it move in circle

How do you find the number of neutrons in an atom?

What is freezing point celcius?

The rate at which speed changes

Between a nonmetal and a nonmetal where electrons are shared

Branches of natural science:

The ability of two or more substances to combine

Types of reactions are: Synthesis, Decompositions, Single Replacement, Double Replacement, Combustion

Iron combines with water and oxygen to form

Energy is absorbed to the surroundings as heat; feels cold; goes from lower energy to higher

Gravitational force: Needs very massive objects to have noticeable effect, most effective for over short distances

Established his atomic theory in 1808. He did not "discover the atom".

A combination of two or more substances that are not chemically combined - they are physically combined

The substance formed from a reaction

Temperature, Concentration, Surface Area, Stirring, and Catalysts

Is the product of an object's mass and velocity

Is a force that acts between any two masses

Proposed that electrons move around the nucleus in certain paths or levels

A substance made up of atoms of two or more different elements joined by chemical bonds

Particles in the nucleus that have no electrical charge

A push or pull that acts on an object

Are atoms that are no longer neutral because they have lost/gained electrons

The four types of friction are: static, rolling, sliding, and solid

A subatomic particle that has a negative charge

What is boiling point celcius?

Newton's Second Law of Motion

The starting materials in a chemical formula

The centrally located tiny, extremely dense positively charged part of an atom (the center of an atom)

Gold Foil Experiment

Is a description of both speed and direction of motion (change of speed and direction)

States that mass is neither created or destroyed in a chemical reaction

The amount of space an object takes up

Is the joining of atoms to form new substances

Occurs when one or more substances are changed into new substances that have new and different properties

Between a metal and a nonmetal where electrons are transferred