Year 6 Electricity Worksheet - Beginner

Year 6 Electricity worksheet for Year 6 (Key Stage 2 / Year 3-6 (Ages 7-11)). Beginner level science practice, aligned to the UK National Curriculum. Print-ready with answer key included.

Science•Key Stage 2 / Year 3-6 (Ages 7-11)•Electricitybeginner

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Electric Circuits: Cells, Bulbs and Buzzers

Year 6 • Ages 10–11 • Beginner

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Instructions: Work through each activity and use the circuit information given to help you. A cell provides a voltage; cells connected in series add their voltages. In a simple circuit with the same components, more cells or a greater total voltage usually make a bulb brighter and a buzzer louder, though components have safe operating limits.

Recognise Circuit Symbols

Use the word bank to name each circuit symbol. The simple text sketches represent the usual circuit-symbol shapes. Write one answer in each box.

Word bank: cell, battery, bulb, buzzer, open switch, closed switch

1. One long line beside one short line:

2. Two long-and-short line pairs:

3. A circle with a cross inside:

4. A circle with a small sound-wave mark beside it:

5. A switch symbol with a gap in its path:

6. A switch symbol with its contacts joined:

Choose the Correct Symbol

Read each component name and select its matching symbol from the options. Think about the standard circuit symbols you identified in Activity 1.

1. Which symbol represents a bulb?

2. Which symbol represents one cell?

3. Which symbol represents an open switch?

4. Which symbol represents a buzzer?

Cells and Voltage

For these examples, the cells are connected in series, so add their voltages to find the total. Show the total voltage in each box. The example shows the method: 1.5 V + 1.5 V = 3 V.

Example: 1.5 V + 1.5 V = 3 V

1. One 1.5 V cell has a total voltage of:

2. Two 1.5 V cells in series have a total voltage of:

3. Three 1.5 V cells in series have a total voltage of:

4. Two 3 V cells in series have a total voltage of:

5. A 3 V cell and a 1.5 V cell in series have a total voltage of:

Predict the Bulb’s Brightness

Assume each circuit has the same bulb and is connected correctly. Use the given observations: increasing the total voltage usually makes the bulb brighter, but a bulb must not be given more voltage than it is designed to use. Write your prediction in each box.

1. A bulb is connected to one 1.5 V cell. It is then connected to two 1.5 V cells in series. What usually happens to its brightness?

2. A bulb is connected to one 3 V cell. It is then connected to two 3 V cells in series. What usually happens to its brightness, and what safety concern should be considered?

3. Two identical bulbs are tested, one with a 1.5 V cell and one with a 3 V cell. Which bulb will usually be brighter?

4. A bulb designed for 3 V is connected to two 1.5 V cells in series. Is the total voltage suitable for the bulb?

Predict the Buzzer’s Sound

Assume each circuit has the same buzzer and is connected correctly. A greater suitable voltage will usually make the buzzer louder. Answer each question using the information in the prompt.

1. A buzzer is connected to one 1.5 V cell. What will usually happen to its loudness when a second 1.5 V cell is added in series?

2. A buzzer is tested with a total voltage of 1.5 V and then 3 V. Which test will usually sound louder?

3. A buzzer is designed for 3 V. Two 1.5 V cells are connected in series. Is this a suitable total voltage?

4. A buzzer designed for 3 V is connected to two 3 V cells in series. Give one reason to avoid this connection.

Read the Results

The table shows observations made with the same bulb and buzzer, each tested in a complete circuit. Read the voltage and observations carefully, then answer the questions below the table.

Cells in series	Total voltage	Bulb observation	Buzzer observation
1	1.5 V	dim	quiet
2	3 V	brighter	louder
3	4.5 V	brightest	loudest

1. At what total voltage was the bulb brightest?

2. How did the buzzer’s sound change from 1.5 V to 3 V?

3. Which test had the quietest buzzer?

4. State the pattern shown as the total voltage increased.

Answer Key

Activity 1: cell ; battery ; bulb ; buzzer ; open switch ; closed switch

Activity 2: circle with a cross ; one long and one short line ; switch with a gap ; circle with sound-wave mark

Activity 3: 1.5 V ; 3 V ; 4.5 V ; 6 V ; 4.5 V

Activity 4: It usually becomes brighter ; It usually becomes brighter, but the bulb could be damaged if the voltage exceeds its rating ; The bulb connected to 3 V ; Yes, the total is 3 V

Activity 5: It will usually become louder ; The 3 V test ; Yes, the total is 3 V ; The 6 V total exceeds its 3 V rating and could damage it

Activity 6: 4.5 V ; It became louder ; The 1.5 V test ; As voltage increased, the bulb became brighter and the buzzer became louder