Eclipses. Speed, reflection and refraction of light
Answers are for parents and teachers.
1
How many seconds does light take for 600 000 km (300 000 km/s)?
2
2
The Sun is 150 000 000 km from the Earth. How many seconds does light take (300 000 km/s)?
500
3
A ray strikes a mirror at 25°. Find the angle of reflection and the angle between the rays (degrees).
25° and 50°.
4
Model eclipses with a lamp, ball and globe and draw them.
Sun–Moon–Earth and Sun–Earth–Moon.
5
Write why a pool bottom looks shallower than it is.
Rays refract as they pass from water to air.