Changes

Jump to navigation Jump to search
Created page with "=== '''Resources''': === PhET simulation – DC electric circuit lab, simple circuit kit with battery, wires, bulb, switch === '''Learning objectives:''' === # Understanding..."
=== '''Resources''': ===
PhET simulation – DC electric circuit lab, simple circuit kit with battery, wires, bulb, switch

=== '''Learning objectives:''' ===

# Understanding different components of an electric circuit
# Understanding open and closed circuits
# Learning to construct a circuit using basic components such as battery, wires, bulb, switch
# Exploring conductivity

=== '''Some observed misconceptions in students that can be addressed through discussions during the transaction of this module:''' ===

* Connecting a battery and a bulb using a single wire makes it a circuit
* Current is ‘used up’ as it flows round the circuit
* It is not possible to construct a circuit without switch
* It is not possible to construct a circuit without a bulb / Current needs a bulb to flow through
* A battery, bulb, switch and wire are all necessary to construct a circuit and it is not possible if any of these components is not available
* Current does not flow when the battery is reversed
* Length of wire used may affect the speed of current and the brightness of the bulb

=== '''Session details''': ===

# Begin the session with asking students what they know about circuits, discuss what it could mean. Analogy of water current flow can be used to explain current flow.
# Open the PhET simulation and show the basic components available and ask students what is needed to make a circuit.
# Ask them to draw a circuit in their note books that can make a light bulb glow. Recreate a few of the drawn circuits on the PhET simulation
# Next ask students what may happen if the battery is reversed, whether the bulb would still glow and discuss their hypotheses. Reverse the terminals and run the simulation
# Ask students what is the function of a switch and why it is needed. Next ask them to redraw their circuits connecting a switch
# Recreate some of the circuits for demonstration
# Ask students whether it is possible to create a circuit using only a battery and wires. Ask them to try drawing such a circuit and what would happen in that case.
# Discuss about short circuits
# Connect different items to check for conductivity. Ask students to predict and then show the simulation
# Discuss conductors and insulators
# Divide students into groups and have them construct an actual circuit using simple electric components
# Discuss what the light bulb could be replaced with – motor, buzzer, etc.
158

edits

Navigation menu