6.1 electrical principles

Multiple Choice

What are the similarities between an atom and a solar system as described in the diagram?

• Electrons orbit the nucleus like planets around a star

• Protons are similar to stars

• Neutrons are not part of the atom

• Electrons do not orbit the nucleus

Multiple Choice

What are materials that allow the free movement of electrons called?

• Insulators

• Conductors

• Semiconductors

• Resistors

Multiple Choice

What is the main difference between conductors and insulators in terms of electron movement?

• Conductors allow free movement of electrons, while insulators restrict it.

• Insulators allow free movement of electrons, while conductors restrict it.

• Both conductors and insulators allow free movement of electrons.

• Neither conductors nor insulators allow free movement of electrons.

Multiple Choice

What are the key measurements of electrical flow?

• Voltage

• Resistance

• Current

• Power

Multiple Choice

What are the two ways electricity is measured?

• Current and Resistance

• Current and Voltage

• Voltage and Power

• Voltage and Resistance

Multiple Choice

What is created by electrons that are negatively charged?

• Current

• Voltage

• Resistance

• Power

Multiple Choice

What is the relationship between voltage and electron flow as described in the image?

• Voltage creates resistance

• Voltage provides the push for flow

• Voltage has no effect on flow

• Voltage decreases conductivity

Multiple Choice

What is the term used to describe how well a material allows electron movement?

• Resistivity

• Conductivity

• Electro-Motive Force

• Electricity

Multiple Choice

What is the Electro-Motive Force (EMF)?

• The force that acts upon randomly moving electrons to move them in the same direction.

• The resistance that opposes the flow of electrons.

• The measure of how well a material allows electron movement.

• The total energy of electrons in a circuit.

Multiple Choice

What is the focus of the lesson?

• Material conductivity

• Material resistance

• Material conductivity and resistance

• Material properties

Multiple Choice

Which material is considered the best conductor of electricity?

• Gold

• Copper

• Aluminum

• Silver

Multiple Choice

What is resistivity and how does it affect the flow of electricity?

• It is the ability of a material to conduct electricity

• It is the opposition to electron flow

• It is the measure of voltage in a circuit

• It is the speed of electrons in a conductor

Multiple Choice

What is the term for the opposition to electron flow in a material?

• Conductivity

• Resistance

• Voltage

• Current

Multiple Choice

What is the electrical conductivity of Copper?

• 63 106

• 59.6 106

• 45.2 106

• 37.7 106

Multiple Choice

What are the two main types of electricity?

• Alternating Current (AC)

• Direct Current (DC)

• Static Electricity

• Magnetic Electricity

Multiple Choice

What are the two types of electricity mentioned in the image?

• Direct Current (DC)

• Alternating Current (AC)

• Static Electricity

• Magnetic Current

Multiple Choice

What is one way that Direct Current (DC) is generated?

• By using wind turbines

• By photovoltaic (PV) panels

• Through nuclear reactions

• By burning fossil fuels

Multiple Choice

What is the frequency of AC in the UK?

• 30 Hz

• 50 Hz

• 60 Hz

• 70 Hz

Multiple Choice

What are the advantages of AC current compared to DC voltage?

• Easier voltage transformation

• Can be stored easily

• More portable than DC

• Less efficient than DC

Open Ended

What action creates voltage?

Open Ended

What is the name of the measurement of current?

Open Ended

What do we call materials that allow free movement of electrons?

Multiple Choice

Which statement best describes an atom?

• Atoms are solid

• Atoms are not solid

• Atoms are fluid

• Atoms are not fluid

Multiple Choice

What are the properties of conductors?

• They allow electricity to flow easily

• They are always solid

• They do not conduct heat

• They are made of non-metallic materials

Open Ended

What questions do you have regarding the presentation?