Lg

Question 1

What is a circuit?

Answer 1

A electric path that transmits electricity

Question 2

What is a circuit?

Answer 2

A electric path that transmits electricity

Question 3

What does a circuit consist of?

Answer 3

Conducting Path
Load
Power Supply

Question 4

What does a circuit consist of?

Answer 4

Conducting Path
Load
Power Supply

Question 5

Series Circuit

Answer 5

Made by connecting end of one device to start of another

Question 6

Parallel Circuit

Answer 6

Same Terminals of both devices are connected together

Question 7

Ions

Answer 7

Atom or molecule with overall net charge

Question 8

Ionic Bond

Answer 8

Chemical bond which oppositely charged ions electrically attached

Question 9

Cation

Answer 9

Ion with positive overall net charge (lost electrons)

Question 10

Anion

Answer 10

Ion with negative net charge (gained electrons)

Question 11

What is electricity?

Answer 11

When energy is carried by movement of electrons

Question 12

What are electrons?

Answer 12

They contain electric charge (positive or negative)

Question 13

Static electricity

Answer 13

Electrons that build up in one spot (don’t move)

Question 14

Current Electricity

Answer 14

Passes Brough a flowing and free pathway

Question 15

What is energy?

Answer 15

It is the capacity for doing work

Question 16

Types of energy

Answer 16

Kinetic
Thermal
Nuclear
Chemical

Question 17

Exothermic

Answer 17

Reaction that gives off heat

Question 18

Endothermic

Answer 18

Reaction that absorbs heat

Question 19

What is ohms law?

Answer 19

Formula used to calculate relationship between current, voltage and resistance

Question 20

What is a resistor?

Answer 20

Materials that don’t allow easy current flow & contain lots of bonds between atoms

Question 21

What is a fixed resistor?

Answer 21

Resistance is fixed

Question 22

What is a variable resistor?

Answer 22

Resistance that can be varied by adapting the length of a wire (greater length = greater resistance = lower current)

Question 23

What is the Ph scale?

Answer 23

A universal method of testing how acidic or basic a substance is.
If the substance is <7 = acidic if it’s >7= basic
If it equals 7 it is neutral
The more hydrogen in the substance, the lower the ph it has

Question 24

What is current?

Answer 24

The flow of electrons along a conducting path (amps)

Question 25

What is voltage?

Answer 25

They are the amount of energy pushing a circuit

Question 26

What is resistance?

Answer 26

It measures how resisting the electrons in a circuit are

Question 27

Law of conservation of mass

Answer 27

Mass can be neither made nor destroyed during a chemical reaction

Question 28

What is a chemical reaction?

Answer 28

It takes place when bonds between atoms are broken and new bonds formed (creates new atomic arrangement)

Question 29

What is a physical reaction?

Answer 29

Matter changes form

Question 30

What is a chemical reaction?

Answer 30

Matter changes chemical identity

Question 31

Ionic compounds

Answer 31

Metallic cation and non metallic anion

Question 32

Radioactive decay

Answer 32

The unstable isotope decays into a more stable form

Question 33

Unstable Sunstance

Answer 33

Protons and neutrons are not held together strongly

Question 34

Stable substance

Answer 34

Protons and neutrons are held strongly toegtehr

Question 35

Nuclear radiation

Answer 35

Isotopes of an element with equal protons but different neutrons

Question 36

Types of radiation

Answer 36

Alpha Beta Gamma

Question 37

What is a conductor?

Answer 37

Materials through which electricity flows easily (metals)

Question 38

What is an insulator?

Answer 38

Materials where electrons and ions are held tightly together (no free particles, no electric flow) plastic, wood, glass

Question 39

What is metallic structure?

Answer 39

The bonding between two + atoms to from a bond