Topic 2 - Technologies can be used to transfer and control electrical energy

Question 1

What are Superconductors?

Answer 1

Perfect conductors: not resistance to electron flow.

Question 2

What is a Resistor?

Answer 2

Allows electrons to pass.

Question 3

What is Resistance?

Answer 3

Measure of how difficult it is for electrons to flow through a substance.

Question 4

What is Resistance Measured in?

Answer 4

Ohms

Question 5

What is a Variable Resistor?

Answer 5

Resistor whose substance was modified or changed by adjusting portion of resistor current travels through.

Question 6

What are Formula s for Ohms Law?

Answer 6

V = I x R
I = V/R
Ω = V/I

Question 7

What is a Millivoltmeter?

Answer 7

Meters utilized to measure small voltages.

Question 8

What is a Ammeter?

Answer 8

Used to measure electrical current in amperes.

Question 9

What is a Galvanometer?

Answer 9

Meters used to measure small currents.

Question 10

What is a Multimeter?

Answer 10

Used to measure voltage, current, resistance.

Question 11

What are the 4 parts of a circuit?

Answer 11

Source, Conductors, Switch, Load

Question 12

What is a Conductor?

Answer 12

Allows charges to flow through them.

Question 13

What is a Series Circuit?

Answer 13

Only one route or pathway for current.

Question 14

What is a Parallel Circuit?

Answer 14

Separate current path for each section of the circuit.

Question 15

What is the Unit for Voltage?

Answer 15

Volt

Question 16

What is the Unit for Current?

Answer 16

Amperes

Question 17

What is the Unit for Resistance?

Answer 17

Ohms

Question 18

What is the Symbol for Voltage?

Answer 18

V

Question 19

What is the Symbol for Current?

Answer 19

A

Question 20

What is the Symbol for Resistance?

Answer 20

Ω