section 1

Question 1

Chemical Bonding

Answer 1

The combining of atoms to form molecules or ionic compounds.

Question 2

Chemical Bond

Answer 2

An interaction that holds atoms or ions hold together.

Question 3

Valence Electron

Answer 3

An electrons that is found in the outermost shell of an atom and that determines the atoms chemical property.

Question 4

Section

Answer 4

2

Question 5

Ionic Bond

Answer 5

A bond that forms when electrons are transferred from one atom to another witch results in a positive ion and negative ion.

Question 6

Ion

Answer 6

A charged particle that forms when an atom or groups of atoms gains or losses one or more electrons.

Question 7

Crystal Lattice

Answer 7

The regular pattern in witch a crystal is arranged.

Question 8

Section

Answer 8

3

Question 9

Covalent Bond

Answer 9

A bond formed when atoms share one or more pairs of electrons.

Question 10

Molecule

Answer 10

The smallest unit of a substance that keeps all of the physical and chemical properties of a substance.

Question 11

Metallic Bond

Answer 11

A bond formed by the attraction between positively charged metal ions and the electrons around them.

Question 12

Motion

Answer 12

1

Question 13

terminal velocity

Answer 13

the constant speed that a freely falling object eventually reaches when the resistance of the medium through which it is falling prevents further acceleration

Question 14

free fall

Answer 14

downward movement under the force of gravity only

Question 15

projectile motion

Answer 15

a curved path under the action of gravity only. The only force of significance that acts on the object is gravity, which acts downward to cause a downward acceleration.

Question 16

Section 2

Answer 16

h

Question 17

inertia

Answer 17

a tendency to do nothing or to remain unchanged.

Question 18

Section 3

Answer 18

h

Question 19

momentum

Answer 19

the quantity of motion of a moving body, measured as a product of its mass and velocity.

Question 20

Chapter 3

Answer 20

h

Question 21

Section 1

Answer 21

h

Question 22

fluid

Answer 22

a non solid state of matter in witch atoms or moles are free to move past each as in a gas or liquid

Question 23

pressure

Answer 23

the amount of force exerted on a force area of a surface

Question 24

pascal

Answer 24

the SI unit of pressure

Question 25

atmospheric pressure

Answer 25

the pressure caused by the weight of the atmosphere

Question 26

Section 2

Answer 26

h

Question 27

buoyant force

Answer 27

the upward force exerted by any fluid upon a body placed in it compare Archimedes' principle.

Question 28

Archimedes Principal

Answer 28

the law that a body immersed in a fluid is buoyed up by a force (buoyant force) equal to the weight of the fluid displaced by the body

Question 29

Section 3

Answer 29

h

Question 30

Bernoulli principal

Answer 30

the principle in hydrodynamics that an increase in the velocity of a stream of fluid results in a decrease in pressure.

Question 31

Thrust

Answer 31

the pushing or pulling force exerted by the engaine of a aircraft

Question 32

Pascals principal

Answer 32

law or the principle of transmission of fluid-pressure (also Pascal's Principle) is a principle in fluid mechanics

Question 33

Chapter 5

Answer 33

h

Question 34

energy

Answer 34

the capacity to do work

Question 35

kinetic energy

Answer 35

the energy of an object that is due to the objects motion

Question 36

potential energy

Answer 36

the energy possessed by a body by virtue of its position relative to others, stresses within itself, electric charge, and other factors.

Question 37

mechanical energy

Answer 37

is the sum of potential energy and kinetic energy. It is the energy associated with the motion and position of an object.

Question 38

Section 2

Answer 38

h

Question 39

energy converstion

Answer 39

a principle in physics: the total energy of an isolated system remains constant irrespective of whatever internal changes may take place with energy disappearing in one form reappearing in another.

Question 40

Section 3

Answer 40

h

Question 41

friction

Answer 41

the resistance that one surface or object encounters when moving over another.

Question 42

law of conservation of energy

Answer 42

The law of conservation of energy is a law of science that states that energy cannot be created or destroyed, but only changed from one form into another or transferred from one object to another.

Question 43

Section 4

Answer 43

h

Question 44

nonrenewable recorce

Answer 44

Non-renewable resources are resources for which there is a limited supply. The supply comes from the Earth itself and, as it typically takes millions of years to come

Question 45

fossil fuel

Answer 45

a natural fuel such as coal or gas, formed in the geological past from the remains of living organisms.

Question 46

renewable recorce

Answer 46

renewable resource definition. Any resource, such as wood or solar energy, that can or will be replenished naturally in the course of time.