Lesson 3 Flashcards
1
Q
What is sound?
A
Lots of vibrations
2
Q
How do you get different pitches and volumes?
A
Different wavelengths and amplitudes
3
Q
What is an ultrasound?
A
Image made by waves
4
Q
Name parts of your eye
A
Pupil iris relana lens optic nerve sclera corncea
5
Q
Primary colours?
A
Red
Green
Blue
6
Q
Secondary colours?
A
Cyan
Yellow
Magenta
7
Q
Why does your jumper look green?
A
It is the only colour that is reflected
