LEV KS3 Y8 Waves

Light and water waves are examples of what?

• Transverse waves

• Longitudinal waves

The speed of light in a vacuum is:

• 3 x 10⁹ m/s

• 3 x 10⁸ m/s

• 3 x 10⁸ km/s

• 3 x 10⁸ cm/s

What word describes the distance between the middle line and the highest part of the wave?

• Wavelength

• Superposition

• Amplitude

• Frequency

The law of reflection says that the:

• angle of incidence is greater than the angle of reflection

• angle of incidence is equal to the angle of refraction

• angle of incidence is equal to the angle of reflection

• angle of incidence is less than the angle of reflection

When light goes from a less dense medium to a more dense medium, light bends in what direction?

• Away from the normal

• towards the normal

• continues at the same angle

When light moves from glass into air, the light will bend in what direction?

• Away from the normal

• Towards the normal

• Continues at the same angle

What is the part of the eye that is coloured?

• Cornea

• Lens

• Iris

• Retina

What is the the photo-sensitive part of the eye called?

• Lens

• Iris

• Cornea

• Retina

White light is a mixture of colours that can be seen when the light hits a prism. The correct order the colours come out in is:

• Red yellow orange green blue indigo violet

• Red orange yellow green indigo blue violet

• Red orange yellow green blue indigo violet

• Red orange green yellow blue indigo violet

Blue jeans appear blue because:

• they absorb blue light and reflect all of the other colours

• they reflect blue light and absorb all of the other colours

• they reflect all of the colours