1. What is the iris ad what's its role in the eye?
- It is the coloured part of the eye, it controls the intensity of light entering the eye.
- It is the coloured part of the eye; and does most of the eyes focusing.
1 of 12
Other questions in this quiz
2. What is the force that keeps something moving in a circle?
- The centripetal force
- The velocity force
3. How do you get the maximum moment?
- You need to push at right angles perpendicular to the object.
- You need to push at 180 degrees to the object.
4. Pressure in a liquid...
- Is transmitted equally in all directions.
- Is transmitted un equally in all dircetions
- Is transmitted equally in different directions.
5. What is a magnet called when its current can be switched off?
- An electomagnet
- A magent