To move charges through their circuit, the students realized that work must be done against the electric field. Which quantity represents the work done per unit of charge?

When the solar panel is connected, charges flow continuously through the copper wires to the bulb. Which quantity measures the rate at which charges flow through the wire?

If an electric circuit is compared to a water tank with a pipe at the bottom, which part of the water system is most similar to the voltage in the circuit?

The team calculated how much charge flowed through the circuit in a given time. Which formula can they use to determine the current?

After testing different wires in their circuit, the students observed that thinner wires became warmer after several minutes of use. They discussed which property of the wire causes this effect by opposing the flow of electric current. Which quantity describes the property of a wire that opposes the flow of current?

During a science fair, students compared two wires made of the same material and length but with different thicknesses. They observed that the thinner wire heated up faster when connected to a battery. Based on their observation, which factor affects the resistance of a conductor besides its material, length, and temperature?

According to Ohm’s Law, how is current related to voltage?

To summarize their findings, the students used an equation to express the relationship between voltage, current, and resistance. Which equation represents Ohm’s Law?

Gemma is at home on a rainy afternoon. She notices her family using different electrical appliances: a lamp, a fan, and a rice cooker. She sees that the lamp sometimes gets dimmer when other devices are on, and the fan slows down during a storm. Curious, Maria wonders how the voltage, current, and resistance in the circuits affect how these appliances work. Gemma wants to understand why a small lamp gets dimmer when too many devices are plugged into the same socket. She knows the lamp’s resistance stays the same.

Gemma notices that her fan runs slower when the voltage drops during a storm. Which equation from Ohm’s Law best explains this observation?

Gemma is at home on a rainy afternoon. She notices her family using different electrical appliances: a lamp, a fan, and a rice cooker. She sees that the lamp sometimes gets dimmer when other devices are on, and the fan slows down during a storm. Curious, Maria wonders how the voltage, current, and resistance in the circuits affect how these appliances work. Gemma plugs a rice cooker rated at 10 A into a 220 V socket. She wants to know its resistance. Using Ohm’s Law, what is the resistance of the rice cooker?

Gemma is at home on a rainy afternoon. She notices her family using different electrical appliances: a lamp, a fan, and a rice cooker. She sees that the lamp sometimes gets dimmer when other devices are on, and the fan slows down during a storm. Curious, Maria wonders how the voltage, current, and resistance in the circuits affect how these appliances work. Gemma’s family is worried about using too many appliances at once. Which of the following practices will reduce the risk of overheating electrical wires at home, according to Ohm’s Law?

Gemma is at home on a rainy afternoon. She notices her family using different electrical appliances: a lamp, a fan, and a rice cooker. She sees that the lamp sometimes gets dimmer when other devices are on, and the fan slows down during a storm. Curious, Maria wonders how the voltage, current, and resistance in the circuits affect how these appliances work. Gemma observes that if she doubles the voltage across a heater, the current also doubles, assuming resistance stays constant. What principle of Ohm’s Law does this demonstrate?

Liza loves helping her father repair things at home. One evening, their lamp suddenly stopped working. Her father explained that for the lamp to work, electricity must travel in a complete path from the outlet to the bulb and back. Liza became curious about what this complete path is called and how it allows current to flow. Liza’s lamp suddenly stopped working, so she checked the plug, switch, and wires. After testing, she realized the current could not complete its path back to the source, causing the lamp to go off. Based on her observation, what can Liza conclude about the condition of the lamp’s circuit?

Liza loves helping her father repair things at home. One evening, their lamp suddenly stopped working. Her father explained that for the lamp to work, electricity must travel in a complete path from the outlet to the bulb and back. Liza became curious about what this complete path is called and how it allows current to flow. In science class, Liza built a simple circuit with a bulb, wires, a battery, and a switch. She noticed the bulb only lights when she flips the switch on. Which component of the circuit controls the flow of electric current?

Liza loves helping her father repair things at home. One evening, their lamp suddenly stopped working. Her father explained that for the lamp to work, electricity must travel in a complete path from the outlet to the bulb and back. Liza became curious about what this complete path is called and how it allows current to flow. Liza noticed that when one Christmas, light bulb burned out, all the others went off too. Her father said they were connected in a single pathway. What type of circuit causes all bulbs to go out when one bulb fails?

Liza loves helping her father repair things at home. One evening, their lamp suddenly stopped working. Her father explained that for the lamp to work, electricity must travel in a complete path from the outlet to the bulb and back. Liza became curious about what this complete path is called and how it allows current to flow. Liza saw that one ceiling light went out, but the others in the room stayed on. Her father explained that each bulb had its own path to the power source. What type of circuit allows the other bulbs to remain lit even if one burns out?

Liza built a flashlight and observed that the bulb lights only when the switch is turned on. She wonders what happens inside the circuit. Why does the bulb light up only when the switch is turned on?

Liza loves helping her father repair things at home. One evening, their lamp suddenly stopped working. Her father explained that for the lamp to work, electricity must travel in a complete path from the outlet to the bulb and back. Liza became curious about what this complete path is called and how it allows current to flow. Liza's family uses several appliances at once, but only one outlet trips the circuit breaker. Her father says it's because each outlet works independently. Why are most home electrical systems designed as parallel circuits?

Liza loves helping her father repair things at home. One evening, their lamp suddenly stopped working. Her father explained that for the lamp to work, electricity must travel in a complete path from the outlet to the bulb and back. Liza became curious about what this complete path is called and how it allows current to flow. During her science project, Liza found one wire loose, and the bulb wouldn’t light. She thinks about why the circuit stopped working. What conclusion can Liza make about her circuit?

Two groups built model houses—one used a series circuit, the other a parallel circuit. When one bulb failed, only the parallel circuit kept working. Which circuit design is better for a household system, and why?

Rafael connects two resistors, 10 Ω and 30 Ω, in series to a 20 V battery to test how current flows through a series circuit. He measures the current passing through each resistor. What is the current flowing through the 10 Ω resistor?

Rafael continues his experiment using the same series circuit with a 20 V battery and 10 Ω and 30 Ω resistors. He now wants to find the voltage drop across the 10 Ω resistor. What is the potential difference across the 10 Ω resistor?

Albert is checking a battery-powered flashlight to see what makes it light up. Which of the following components provides the electric potential in a circuit?

In a small robot, a component turns the motor on and off to control movement. Which component allows a signal to change the on/off state that separates the flow of electricity?

A student is designing a simple circuit and needs to know the minimum number of connections a switch must have. What is the least number of contacts that a switch must have?

In a lab, students want a device that can provide a steady DC voltage to power their electronics safely. Which among the components is capable of providing controlled DC output?

While testing a circuit, a student observes that a fuse stops the flow of electricity when too much current passes through. What happens to the metal component inside a fuse when current goes beyond its rating?

A student checks a resistor in a small flashlight to see how it affects the circuit. Which of the following is the unit used to measure a resistor’s resistance?

At home, a Matteo examines a capacitor in a ceiling fan circuit to see what insulator is between its plates. What is the insulator sandwiched between the plates of a capacitor?

During a visit to a local electronic shop in Lubao Pampanga, Markie observes a coil that stores energy in a magnetic field. Which component is capable of storing energy in a magnetic field?

When Paula’s brother checked the diode, he explained that it allows current to flow only in one direction. He demonstrated what happens when the diode is connected in forward bias. What happens to the resistance of a forward-biased diode?

Paula’s brother also explained that if the current becomes too high, a component is designed to melt and stop the flow of electricity to protect the device. Which of the following components protects the circuit from a current surge?

During a science project, Paula built a simple circuit to light up a small bulb. She noticed that when she added a resistor, the bulb became dimmer. Why did the bulb’s brightness decrease when Mika added a resistor?

Paula is repairing a flashlight that uses a switch, a bulb, and a battery. He observes that the flashlight doesn’t turn on when the switch is off. What action does the switch perform in the circuit when turned off?

Lara used a capacitor in her electronic circuit. When she unplugged the device, the LED light stayed on for a few seconds before slowly turning off. What does this show about the function of the capacitor in the circuit?

Daryl noticed that when he connected a diode in reverse to a battery, his small motor didn’t spin. However, when he flipped the diode, the motor worked properly. Which explanation best describes the diode’s role in this situation?

Ella’s electric fan stopped working after a sudden power surge, but when the technician checked it, only the fuse was damaged. The other components were still in good condition. What can you infer about the role of the fuse in the circuit?

Paolo is learning how computers store numbers using only 1s and 0s. His teacher explained that each position in a binary number represents a specific value. What is the place value of the rightmost bit in the binary number system?

Jessa saw that the binary number 1010 represents a certain value when converted to decimal form. She wants to understand how each bit contributes to the total value. What is the decimal equivalent of the binary number 1010?

A computer technician wants to check if a binary sensor sends the correct decimal value. The sensor sends 1101 as output. What decimal number does the binary 1101 represent?

In a digital counter, each light turns on or off based on binary values. When the binary display shows 0111, the technician needs to confirm the decimal reading. What is the equivalent decimal value of 0111?

Miguel is designing a simple circuit that uses logic gates to control a light. He compares the behavior of an AND gate and an OR gate when both inputs are 1. What output will both gates produce when both inputs are 1?

During an experiment, a student observed that a logic gate output is always the opposite of its input signal. Which logic gate performs this operation?

A digital engineer tested two gates. The first gave an output of 1 only when both inputs were 1, while the second gave an output of 0 when both inputs were 1. Which two gates are being described?

A family wants to install a home alarm system that triggers only when all sensors (door, window, motion) detect danger at the same time. The technician must decide which logic gate to use for the main alarm circuit. Which logic gate is most appropriate for this design, and why?

In a Grade 10 Electronics class, Mrs. Cruz demonstrated how computers and appliances control current automatically. She explained that one small electronic part can act like a switch, turning circuits “on” or “off” even in high-power devices like televisions and amplifiers. Which electronic component is commonly used in digital circuits as an electronic switch for both low and high-power applications?

During a laboratory activity, students examined small electronic components. One of them noticed a device with two terminals that allowed electricity to flow only in one direction, like a one-way valve for current. Which electronic component has two terminals and allows the current to flow in only one direction?

The school’s robotics team is improving their robot’s power system. They need a component that can maintain a stable voltage output to protect the robot’s sensors from damage caused by power fluctuations. Which electronic component should the team select to regulate the voltage in their robot’s power circuit?