Who was Alexander Graham Bell?
In this lesson, we will learn about why Alexander Graham Bell was inspired to invent the telephone. We will recap what sound is and learn how a telephone works. We will also look at the controversy over the telephone patent!
Who was Alexander Graham Bell?
In this lesson, we will learn about why Alexander Graham Bell was inspired to invent the telephone. We will recap what sound is and learn how a telephone works. We will also look at the controversy over the telephone patent!
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Lesson details
Key learning points
- Alexander Graham Bell's life story and contributions to science
- Describe how a basic telephone works
- Look at the controversy over the telephone patent
Licence
This content is made available by Oak National Academy Limited and its partners and licensed under Oak’s terms & conditions (Collection 1), except where otherwise stated.
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5 Questions
Q1.
What was Katherine Johnson's favourite subject?
Art
English
Q2.
What was Katherine Johnson's first job?
A 'computer' at NASA
An astronuat
Q3.
How many times did John Glenn orbit the Earth?
2
6
Q4.
What went wrong on Apollo 13?
A window broke
They ran out of fuel
Q5.
What does trajectory mean?
The size of an object
The speed an object moves
4 Questions
Q1.
When something makes a sound what happens to the particles in the air?
They change size
They stop moving
Q2.
Which of these came first?
Miller Hutchinson invented the first electric hearing aid.
Thomas Edison invented the microphone
Q3.
A telephone works by converting sound to ______________ and then back to sound.
magnetic signals
vibrations
Q4.
What is a patent?
A part of a telephone.
The design of an invention.