I WONDER - How Have Mobile Phone Batteries Changed?

The video discusses the first cell phone, which required a 10-hour charge for just 13 minutes of use, highlighting the evolution of battery life in smartphones. It also describes the design of early mobile phones, which were long, sturdy, and equipped with an antenna for radio signal connectivity.

How long did the first cell phone need to be charged to provide 13 minutes of usage?

• 5 hours

• 10 hours

• 15 hours

• 20 hours

What is a significant improvement in modern smartphones compared to the first cell phones?

• They are heavier

• They have no screens

• They have shorter battery life

• They have longer battery life

What feature did the first mobile phone have to connect to radio signals?

• Bluetooth

• A built-in camera

• A touchscreen

• An antenna

What was a notable physical characteristic of the first mobile phone?

• It had a foldable screen

• It was very small

• It was long and sturdy

• It was made of glass

What was the primary function of the antenna on the first mobile phone?

• To take photos

• To play music

• To connect to radio signals

• To charge the phone