Adding different
components
bell
buzzer
motor
Different components need different
strengths of electricity to work….
voltage – the
strength of
electricity that a
component needs
for it to work
volt (V) – unit which
measures the
strength of
electricity
bell
• needs 6V to work
This Photo by Unknown Author is licensed under CC BY-SA
buzzer
• needs 3V to work
motor
• needs 24 V to work
This Photo by Unknown Author is licensed under CC BY-SA
Try these….
IF YOU PUT A 3V BUZZER INTO A
CIRCUIT YOU NEED A ___V BATTERY
TO MAKE THE BUZZER WORK.
YOU CAN MAKE A 3V SUPPLY BY
JOINING ____ 1.5 V CELLS.
Exercise 5.7 Adding different
components
Classwork…
Activity book (page 61)