Understanding Periscopes and Submarines

The video introduces submarines and their periscopes, explaining how periscopes allow submarines to observe the surface from underwater. It describes how to build a simple periscope using mirrors and cardboard, and explains the mechanics of how it works through an animation.

What is the primary purpose of a periscope on a submarine?

• To navigate underwater

• To measure water temperature

• To observe the surface of the water

• To communicate with other submarines

How does a periscope help a submarine?

• By increasing its speed

• By allowing it to fly

• By making it invisible

• By enabling it to see above water

What materials are needed to make a simple periscope?

• Wood and nails

• Two mirrors and cardboard

• Plastic and glue

• Metal and glass

What is the role of mirrors in a simple periscope?

• To reflect light and images

• To magnify objects

• To change colors

• To absorb sound

Why might someone want to build a simple periscope?

• To listen to sounds

• To observe distant objects

• To explore underwater

• To create a telescope