GIZMOS STUDENT EXPLORATION ACTUAL
TEST SCRIPT 2026 VERIFIED SOLUTIONS
◉ How will a single burned-out bulb affect the string of lights if each
light is attached to its own wire? Answer: There will be no change in
the brightness of the other lights. This is an example of a parallel
circuit.
◉ Click the light switch to turn it to ON. What happens? Answer: The
light bulb starts to glow.
◉ How does changing the battery's voltage affect the current?
Answer: The higher the battery voltage, the greater the flow of
current in the circuit.
◉ How does changing the battery's voltage affect the brightness of
the light? Answer: The higher the battery voltage, the brighter the
bulb shines.
◉ Remove the wire. What happens? Answer: The current stops and
the bulb stops glowing.
, ◉ How do you think increasing the resistance in a circuit will affect
the current in the wire? Answer: The flow of the current will
decrease due to the resistance.
◉ Is the current the same throughout, or does it change? Answer:
The same
◉ What is the current in the wire now? Answer: 2.7 amp
◉ What is the mathematical relationship between voltage (V),
resistance (R), and current (I)? Answer: V= IxR
◉ Apply: The light bulb is also a resistor. Place the light bulb in the
circuit, then use Ohm's law to find the resistance of the light bulb.
What is it? Answer: I=V/R
◉ Observe: Turn the light switch ON and observe the light bulb.
Then start replacing the wire segments with new light bulbs.
How does each new light bulb affect the others? Answer: It takes up
electricity which causes the other bulbs to dim.
◉ Use the Ammeter to measure the current in various parts of the
circuit. Is the current the same throughout, or does it change?
Answer: The current is the same throughout.
TEST SCRIPT 2026 VERIFIED SOLUTIONS
◉ How will a single burned-out bulb affect the string of lights if each
light is attached to its own wire? Answer: There will be no change in
the brightness of the other lights. This is an example of a parallel
circuit.
◉ Click the light switch to turn it to ON. What happens? Answer: The
light bulb starts to glow.
◉ How does changing the battery's voltage affect the current?
Answer: The higher the battery voltage, the greater the flow of
current in the circuit.
◉ How does changing the battery's voltage affect the brightness of
the light? Answer: The higher the battery voltage, the brighter the
bulb shines.
◉ Remove the wire. What happens? Answer: The current stops and
the bulb stops glowing.
, ◉ How do you think increasing the resistance in a circuit will affect
the current in the wire? Answer: The flow of the current will
decrease due to the resistance.
◉ Is the current the same throughout, or does it change? Answer:
The same
◉ What is the current in the wire now? Answer: 2.7 amp
◉ What is the mathematical relationship between voltage (V),
resistance (R), and current (I)? Answer: V= IxR
◉ Apply: The light bulb is also a resistor. Place the light bulb in the
circuit, then use Ohm's law to find the resistance of the light bulb.
What is it? Answer: I=V/R
◉ Observe: Turn the light switch ON and observe the light bulb.
Then start replacing the wire segments with new light bulbs.
How does each new light bulb affect the others? Answer: It takes up
electricity which causes the other bulbs to dim.
◉ Use the Ammeter to measure the current in various parts of the
circuit. Is the current the same throughout, or does it change?
Answer: The current is the same throughout.
