Magnetism: Compasses

The video tutorial explains how a compass can be used to navigate when lost. It describes the components of a compass, including the magnetized needle with a North and South Pole, and how the North Pole always points north. The tutorial also covers practical applications of compasses in navigation for boats and airplanes.

What is a compass primarily used for?

• To determine altitude

• To measure temperature

• To find directions

• To calculate speed

What is unique about the needle of a compass?

• It is made of plastic

• It is magnetized

• It is flexible

• It is transparent

Which direction does the red end of a compass needle point?

• South

• East

• West

• North

How can a compass help if you know you need to head East?

• By showing the exact distance to travel

• By pointing West

• By helping you find North and then adjust to East

• By pointing South

In which of the following is a compass used for navigation?

• Cars

• Bicycles

• Boats and airplanes

• Trains