Electricity and Circuits

What is the difference between a series circuit and a parallel circuit?

• The difference is the color of the wires used in each circuit

• In a series circuit, the components are connected in a straight line, while in a parallel circuit, the components are connected in a circular pattern

• The difference is that series circuits are used for AC power and parallel circuits are used for DC power

• The main difference is how the components are connected and how the current and voltage behave in each type of circuit.

Name two examples of conductors and two examples of insulators.

• Steel

• Plastic

• Silver

• Examples of conductors: Copper, Aluminum. Examples of insulators: Rubber, Glass.

What is electric current and how is it measured?

• Electric current is the flow of electric charge through a conductor and it is measured in units called amperes (A) using an ammeter.

• Electric current is the flow of heat through a conductor and it is measured in degrees Celsius using a thermometer.

• Electric current is the flow of air through a conductor and it is measured in watts using a wattmeter.

• Electric current is the flow of water through a conductor and it is measured in volts using a voltmeter.

Explain the function of a switch in an electrical circuit.

• The function of a switch in an electrical circuit is to increase the voltage

• The function of a switch in an electrical circuit is to open or close the circuit, controlling the flow of electricity.

• The function of a switch in an electrical circuit is to store electricity

• The function of a switch in an electrical circuit is to generate heat

Draw the symbol for a battery and a bulb in an electrical circuit.

• Battery: () , Bulb: *

• Battery: + -, Bulb: O with a line through it

• Battery: | | , Bulb: O with a cross inside

• Battery: B, Bulb: X

Why is it important to handle electricity safely?

• To impress others with electrical knowledge

• To test the limits of electrical equipment

• To prevent electrical shocks, fires, and other accidents.

• To save money on electricity bills

What are the safety measures to be taken when dealing with electricity?

• Wearing insulated gloves and footwear, using insulated tools, turning off the power before working on electrical systems, and avoiding water and wet conditions.

• Wearing regular gloves and footwear when dealing with electricity

• Working on electrical systems with wet hands

• Using metal tools when working with electricity

What happens to the brightness of bulbs in a series circuit if one of the bulbs goes out?

• The brightness of the other bulbs will remain the same

• The brightness of the other bulbs will increase

• The brightness of all the bulbs will decrease or they will all go out.

• The brightness of the other bulbs will flicker

In a parallel circuit, what happens to the other bulbs if one of the bulbs goes out?

• The other bulbs will become brighter

• The other bulbs will also go out

• The other bulbs will remain lit.

• The other bulbs will flicker on and off

What is the symbol for a resistor in an electrical circuit?

• Zigzag line

• Circle

• Triangle

• Square