Circuit Symbols

This is the symbol for a...

• Light Emitting Diode

• Light Dependent Resistor

• Fuse

• Cell

Answer explanation

Light dependent resistor (LDR) LDRs (light-dependent resistors) are used to detect light levels, for example, in automatic security lights. Their resistance decreases as the light intensity increases:

This is the symbol for a...

• Fuse

• Cell

• Fixed Resistor

• Variable Resistor

This is the symbol for a...

• Battery

• Thermistor

• Motor

• Fuse

Which label points to the Fuse on the diagram?

• C

• D

• E

• F

Answer explanation

The fuse breaks the circuit if a fault in an appliance causes too much current to flow. This protects the wiring and the appliance if something goes wrong.

This is the symbol for a ...

• Bulb

• Battery

• Horn

• Fuse

• Cell

• Wire

• Resistor

• Variable Resistor

Tags

NGSS.MS-PS2-3

What is this?

• Bulb

• Lamp

• Cell

• Switch

Identify this?

• Fuse

• Closed switch

• Wire

• Cell

Cell or battery - You decide!

• Battery

• Cell

Tags

NGSS.MS-PS3-5

• Motor

• Ammeter

• Voltmeter

• Switch

Tags

NGSS.MS-PS2-5