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6. Where is the real image formed in a reflecting telescope?
- Behind the large concave mirror
- Infront of the small concave mirror
- Behind the small concave mirror
7. What does convex mean?
- Flat
- Bulging outwards
- Caving inwards
8. Why does light reflect?
- Because it wants to
- Because of a change in density between mediums
- Because it hits a medium
9. Why are space telescopes better than telescopes on earth?
- Because They aren't obstructed by our lights, pollution and atmosphere
- They aren't
- Because they're bigger so can see more
10. 'An incident ray parrallel to the axis will pass throught the focal point when its reflected'
11. The angle of reflection is.....
- Double the angle of incidence
- Equal to the angle of incidence
- Half the angle of incidence
12. Concave mirrors are?...
- Convex and bulge outwards
- Shiny on the inside of the curve
- Used to converge the rays
13. What is the geocentric model?
- Where the sun, moon, planets and stars all obited the earth
- Where the moon, planets, earth and the stars all obit the sun
14. 'Light travels slower in denser media'
15. Why can we see planets?
- Because they're bright
- Because they reflect sunlight
- Because they're big
- Because they produce visible light
16. Give an example of a transverse wave
- A light wave
- A sound wave
- A slinky
17. What is a reflecting telescope made up of?
- A large concave mirror, a small concave mirror and an eyepiece lens
- A large concave mirror and an eyepiece lens
- An objective lens and an eyepiece lens
- An objective lens, a concave mirror and an eyepiece lens
18. What is the focal length?
- The distance from the outside of the lens to the focal point
- The distance from the object to the focal point
- The distance from the centre of the lens to the focal point
- The distance from the object to the lens
19. In which type of wave are the vibrations at 90 degrees to the direction of travel?
20. What is the height of the waves called? (from the midline to the peak)
- The amplitude
- The wavelength
- The frequency