GIZMOS STUDENT EXPLORATION EXAMS SET COMPLETE QUESTIONS WITH ACCURATE ANSWERS COLLECTION

GIZMOS STUDENT EXPLORATION EXAMS
SET COMPLETE QUESTIONS WITH
ACCURATE ANSWERS COLLECTION

●● 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.