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- 1. Multiple Choice
Objects that reflect well are
Matte surfaces
Smooth, shiny surfaces
Dark coloured surfaces
Medium coloured surfaces
- 2. Multiple Choice
The law of reflection states that
Angle of incidence = Angle of reflection
Angle of incidence = Angle of incidence
Angle of reflection = Angle of translucence
Angle of reflection = Angle of reflection
- 3. Multiple Choice
Lateral inversion is
When a light ray hits an object as a curved wave
The term used to describe light rays reflecting off dark, matte surfaces
The same as 'angle of incidence'
When something is reflected in a plane mirror where left becomes right and right becomes left
- 4. Multiple Choice
A concave mirror
Curves inwards
Curves outwards
Curves sideways
Curves in multiple directions
- 5. Multiple Choice
A convex mirror
Curves inwards
Curves outwards
Curves sideways
Curves in multiple directions
- 6. Multiple Choice
The angle of reflection is
90 degrees
55 degrees
45 degrees
135 degrees
- 7. Multiple Choice
Refraction is
The bending of light as it passes through the one substance at an angle
A light beam shone in one end of an optical fibre and totally internally reflected at the other end
The bending of light as it passes from one substance to another at an angle
A type of convex object used in everyday life
- 8. Multiple Choice
The above image is an example of a ____________. They happen because cool and hot air have a different ___________________________.
Mirage; angle of incidence
Optical fibre; refractive index
Lateral inversion; angle of reflection
Mirage; refractive index
- 9. Multiple Choice
Refraction happens because light travels _____________ in glass or water compared to air
Faster
The same
At the speed of sound
Slower
- 10. Multiple Choice
Total internal reflection is
When lateral inversion occurs
When the angle of reflection increases up to a critical point where all the light is reflected
When the angle of incidence increases up to a critical point where all the light is reflected
Used in surgery where a light is connected to an optical fibre
- 11. Multiple Choice
A convex lens produces a _______ image whereas a concave lens produces a _______ image
Virtual, real
Virtual; diffused
Real; refracted
Real; virtual
- 12. Multiple Choice
An example of total internal reflection is
Diamond
Looking down at someone in a swimming pool
A camera inserted in a person's body during surgery
The 'pool' of water seen when looking into the distance on a hot day
- 13. Multiple Choice
The refractive index of a substance
Is the degrees between the reflected ray and the normal
Is a number that tells you how much the light bends when going from air into that substance
Is a number that tells you how fast the light bends when going from air into that substance
Is the degrees between an incident ray and the normal
- 14. Multiple Choice
The angle of incidence is
56 degrees
124 degrees
90 degrees
34 degrees
- 15. Multiple Choice
The incident ray is the light ray leaving the light source. The angle of ______________ correlates with the incident ray.
Incidence
Reflection
Refraction
Normal
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