# Exploring how to control simple circuits to create more functional products

In this lesson, we will explore how we can program a computer to control electrical systems to achieve a more functional product. We will explore how to use the micro:bit to program a simple circuit. We will also explore a range of new components to see how we can make the product react to the environment and be more functional. This lesson includes some physical activity and equipment beyond pen, paper or pencil. Please make sure your child is adequately supervised.

# Exploring how to control simple circuits to create more functional products

In this lesson, we will explore how we can program a computer to control electrical systems to achieve a more functional product. We will explore how to use the micro:bit to program a simple circuit. We will also explore a range of new components to see how we can make the product react to the environment and be more functional. This lesson includes some physical activity and equipment beyond pen, paper or pencil. Please make sure your child is adequately supervised.

## Lesson details

### Key learning points

1. work confidently within a range of contexts, such as the home, school, leisure, culture, enterprise, industry and the wider environment
2. how more complex electrical circuits and components can be used to create functional products
3. how to program a computer to monitor changes in the environment and control their products
4. how to use learning from science to help design and make products that work

### Equipment

Computer / iPad with internet access, construction materials i.e. card, scissors, tape, paper.

### Content guidance

• Equipment requiring safe usage.

### Licence

This content is made available by Oak National Academy Limited and its partners and licensed under Oak’s terms & conditions (Collection 1), except where otherwise stated.

## Video

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## Worksheet

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## Starter quiz

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### 3 Questions

Q1.
What is a process in an electrical system?
The component or action in order to get the circuit working.
The component or action that will be activated after the process.
Correct answer: Transfer of power from input to output, the action taking place between the input and the output to make the output work.
Q2.
What part of the mechanical system would you connect the electrical circuit to?
Output.
Process.
Q3.
Why do we need to control our simple circuit that included a motor as an output?
To make the light brighter.
Correct answer: To reduce and control the speed and direction of the motor.

## Exit quiz

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### 5 Questions

Q1.
What is a microprocessor?
A microprocessor is a component that is used to make a simple circuit.
A microprocessor is a very small human resources department.
Correct answer: A microprocessor is an integrated circuit that contains all the functions of a central processing unit of a computer. It can be programmed to support the control of key electronic components.
Q2.
We can use a microprocessor to control and programme a motor to be able to do what?
Correct answer: Control the speed, direction and timings.
Light up.
Make a sound.
Q3.
What key component did we programme when we explored using the micro:bit?
A Motor.
A Speaker.
Q4.
What is the purpose of the resistor?
Correct answer: The resistor is used to control the flow of the electrical current within a circuit.
The resistor is used to stop the circuit from working.
The resistor is used to stop the flow of the water.
Q5.
What happens to the LED on a simple circuit when we increase the voltage?
Correct answer: The LED became brighter.
The LED became dim.
The LED stopped working.