PHYSICS

30問 • 1年前

Claire

通報

問題一覧

Fundamental quantity, we don't know it but we describe it, use it, and control it

Electric charge

runs motors, lights, heater, AC, stereors, TVs, computers etch

Electricity

The word "Electric" is derived from the GREEK word _____

Elektron

"Elektron" meaning

AMBER

there are ______ two types of positive and negative charges suggected calling these two (2) kind by ______

2 Benjamin Franklin (1706 - 1790)

two charged plastic rulers repel

Two charged glass rods REPEL

Charged glass rod ATTRACTS charged plastic ruler

same charges

Repel

Opposite charges

Attract

• Negative Charge • Electron moves in electron shells around the nucleus Ex: 9.109382911402 × 10 raise to -31 kg = 9.109×10 raise to -31kg

Electron

• Positive charge Ex: 1.6726227771742 × 10 raise to -27 kg = 1.673 × 10 raise to -27 kg

Proton

• UNCHARGE • Center of the atom, which is made of particles called protons and neutrons Ex: 1.6749273511742 × 10 raise to -27 kg = 1.675 × 10 raise to -27 kg

Neutron

• Electric Charge MOVES FREELY • METAL • COPPER

Conductor

• Electric Charge DOES NOT MOVE FREELY • NON-METALS • WOOD

Insulator

State that the electrical force between two (2) charged objects is DIRECTLY PROPORTIONAL to the PRODUCTs of the quantity of charged on the objects And INVERSELY PROPORTIONAL to the SQUARE of the reparation distance between the two objects

Coulomb's Law

Couloms law equation form

F = K •q1 •q2 / r2

Represent the force of attraction or repulsion (In newton)

Represent the quantity of charge on Object 1 (in coulomb's)

Represent the quantity of charge on object 2 (in coulomb's)

Represent the distance of seperation between the two objects (in meters)

Is a proportionality constant known as the Coulomb's Law constant

K =

9.0 × 10 raise to 9 N-m2/c2

Electrical force and gravitational force are the two ______

non contact force

Equation of Electrical Force

F elect = K • q1 • q2 / d2 K = 9.0 × 10 raise to 9 N•m2/c2

Equation of Gravitational force

F grav = G • m1 • m2 / d2 k = 6.67 × 10 raise to -11 N•m2/kg2

Coulomb's law constant (k) is ________Newton Universal gravitational constant (g)

greater than

Only attractive

Gravitational force

Can be attractive and repulsive

Electrical force

Fundamental rules of charge

Opposite - attract likes - repel

BIOLOGY_ plants

BIOLOGY_ plants

CPAR_ lesson 1

CPAR_ lesson 1

CPAR_ lesson 2

CPAR_ lesson 2

CPAR_lesson 3

CPAR_lesson 3

DRRR_ lesson 1&2

DRRR_ lesson 1&2

DRRR_ lesson 3,4,5

DRRR_ lesson 3,4,5

RESEARCH project

RESEARCH project

BIOLOGY_ Animal and Human

Claire · 36問 · 1年前

BIOLOGY_ Animal and Human

Work immersion

Work immersion

CPAR_Gamaba

CPAR_Gamaba

USCP_lesson 1

USCP_lesson 1

BIO_lesson 3

BIO_lesson 3

BIO_Additional

BIO_Additional

問題一覧

Fundamental quantity, we don't know it but we describe it, use it, and control it

Electric charge

runs motors, lights, heater, AC, stereors, TVs, computers etch

Electricity

The word "Electric" is derived from the GREEK word _____

Elektron

"Elektron" meaning

AMBER

there are ______ two types of positive and negative charges suggected calling these two (2) kind by ______

2 Benjamin Franklin (1706 - 1790)

two charged plastic rulers repel

Two charged glass rods REPEL

Charged glass rod ATTRACTS charged plastic ruler

same charges

Repel

Opposite charges

Attract

• Negative Charge • Electron moves in electron shells around the nucleus Ex: 9.109382911402 × 10 raise to -31 kg = 9.109×10 raise to -31kg

Electron

• Positive charge Ex: 1.6726227771742 × 10 raise to -27 kg = 1.673 × 10 raise to -27 kg

Proton

• UNCHARGE • Center of the atom, which is made of particles called protons and neutrons Ex: 1.6749273511742 × 10 raise to -27 kg = 1.675 × 10 raise to -27 kg

Neutron

• Electric Charge MOVES FREELY • METAL • COPPER

Conductor

• Electric Charge DOES NOT MOVE FREELY • NON-METALS • WOOD

Insulator

Coulomb's Law

Couloms law equation form

F = K •q1 •q2 / r2

Represent the force of attraction or repulsion (In newton)

Represent the quantity of charge on Object 1 (in coulomb's)

Represent the quantity of charge on object 2 (in coulomb's)

Represent the distance of seperation between the two objects (in meters)

Is a proportionality constant known as the Coulomb's Law constant

K =

9.0 × 10 raise to 9 N-m2/c2

Electrical force and gravitational force are the two ______

non contact force

Equation of Electrical Force

F elect = K • q1 • q2 / d2 K = 9.0 × 10 raise to 9 N•m2/c2

Equation of Gravitational force

F grav = G • m1 • m2 / d2 k = 6.67 × 10 raise to -11 N•m2/kg2

Coulomb's law constant (k) is ________Newton Universal gravitational constant (g)

greater than

Only attractive

Gravitational force

Can be attractive and repulsive

Electrical force

Fundamental rules of charge

Opposite - attract likes - repel