Sound Chap 40 And magnetism chap 41 Flashcards
1
Q
What is sound made of
A
Vibrations
2
Q
How does sound travel
A
Someone’s vocal cords vibrate
3
Q
Echo definition
A
When sound bounces off something
4
Q
What is the speed of sound
A
340 metres per second
5
Q
What 2 things does each magnet have
A
A north and South pole
6
Q
Magnetic force definition
A
The force of attraction or the force of repulsion between 2 magnets
7
Q
What are materials that can be attracted to magnets called
A
Magnetic materials
8
Q
Magnetic field definition
A
The region around a magnet In which the magnetic force can be detected
9
Q
Definition of sound
A
Produced when objects vibrate
