electrical safety

Resistance in wire depends on how thick it is, how long it is and what it is made of.

• true
• false

Your body is a conductor of electricity.

• true
• false

Tags

NGSS.MS-PS2-3

In the event that someone is being shocked by electricity you would never ________________.

• call an adult
• call 911
• touch them
• yell for help

What is the resistance in this circuit? 

• 0.05Ω
• 1.8Ω
• 20Ω

What colour is the live wire in a mains plug?

• Green
• Blue
• Brown

What is the function of the neutral wire?

• To carry a high voltage
• To complete circuit
• It is a safety wire

Which statement about an earthed conductor is correct?

• It is coloured red
• It cannot become live
• It acts as a fuse

The fuse in a circuit melts when:

• An appliance isn't earthed
• Too much current flows
• Too much voltage flows

A double insulated appliance does not need:

• A fuse
• A earth wire
• A neutral wire

Tags

NGSS.HS-PS2-5

What's the first thing you should do if someone is shocked electrically?

• Use the fire extinguisher
• Check for breathing and heartbeat
• Turn off the power source
• Remove the person from the power source