Electrical Principles And Technology Unit Review

45 Questions | By Smartiecheez | Last updated: Mar 20, 2022 | Total Attempts: 246

Questions

Settings

Create your own Quiz

Electrical Principles And Technology Unit Review - Quiz

A unt review for this unit including: Calculating Power, Watts, Resistance, Current, Efficiency etc. , Static Electricity, Electrical Safety, Current Electricity, Cells & Batteries, Electrical Circuits (ie. Flashlight), Resistance, Energy Transformation/ Forms, Motors (ie. St Louis Motor, Magnetism) and Electricity Generators. Good Luck :)

Questions and Answers

1.

These types of conductors have no resistance to electron flow, which is why they are known to be perfect conductors. They are called _______.
- A.
  
  Superconductors
- B.
  
  Metallic conductors
- C.
  
  Resistance-less conductors
- D.
  
  Magnetic conductors
2.

The more charged particles in a solution _________.
- A.
  
  The more voltage it produces
- B.
  
  The more resistance there is
- C.
  
  The less resistance there is
- D.
  
  The less voltage is produced
3.

_______ is the direction of a magnetic or electric field.
4.

The _____ (one or two words) in an electric motor attracts the armature to create motion; in which, creates electricity.
5.

Determine if this statment true or false: A generator stores energy.
- A.
  
  True
- B.
  
  False
6.

The movement of charges from an object to another without further movement is called __________.
7.

An example of a static electrical charge is _______.
- A.
  
  Lightning
- B.
  
  Batteries
- C.
  
  Current
- D.
  
  Ohms
8.

Why do objects attract to one another?
- A.
  
  Opposite charges
- B.
  
  Similar charges
- C.
  
  Neutrons
- D.
  
  Electrons
9.

How does spraying water on laundry help reduce static cling?
- A.
  
  The water absorbs electrical charge
- B.
  
  The water contains protons
- C.
  
  Water is a magnet
- D.
  
  The charges leave onto a different object with opposite charges
10.

When electrons discharge, they go into the ground via a _________ wire.
11.

A ________ is designed to interrupt the power to a circuit when the current flow exceeds safe levels.
12.

A _________ occurs when there is a low resistance connection between two conductors supplying electrical power to any circuit.
- A.
  
  Short circuit
- B.
  
  Malfunction
- C.
  
  Electrical shock
- D.
  
  Spark
13.

____________ is the energy carried by charged particles.
14.

How much current is created when a 30 V battery creates a current through a 15 Ω resistor?
15.

The measurement used to measure voltage is ________.
16.

The measurement used to measure current is _______.
17.

The process of which you use a small battery to split molecules into their elements is called _________.
- A.
  
  Electrolysis
- B.
  
  Hydro-plating
- C.
  
  Hydrolysis
- D.
  
  Energy transformation
18.

A _________, is a paste or liquid that conducts electricity because it contains chemicals that form ions.
- A.
  
  Electrolyte
- B.
  
  Battery
- C.
  
  Dry cell
- D.
  
  Wet cell
19.

Who had made the first practical battery by piling copper and zinc disks on top of each other, and then seperating them with electrolyte-soaked paper discs.
- A.
  
  Alessandro Volta
- B.
  
  Faraday
- C.
  
  Van de Graff
- D.
  
  Ohm
20.

A dry cell is different from a wet cell because it is ____________.
- A.
  
  Rechargeable
- B.
  
  Non-rechargeable
- C.
  
  Wet
- D.
  
  Less resistance
21.

The longer the wire is, the ______ its resistance.
- A.
  
  Lower
- B.
  
  Greater
- C.
  
  Wider
- D.
  
  Thinner
22.

The thicker the wire is, the ________ its resistance.
- A.
  
  Lower
- B.
  
  Greater
23.

The ______ a wire is, the lower the resistance.
- A.
  
  Cooler
- B.
  
  Hotter
- C.
  
  Less conductive
24.

A _________ is a continuos resistor used to regulate electric current, it is also used to change the current flow.
- A.
  
  Rheostat
- B.
  
  Voltmeter
- C.
  
  Ammeter
- D.
  
  Battery
25.

What is the total resistance of a parallel circuit with two 20-ohm resistors and a 10-ohm resistor?