https://www.sciencelearn.org.nz/resources/49-refraction-of-light

What is refraction?

• The reflection of light off a surface

• The scattering of light in all directions

• The bending of light as it passes from one transparent substance into another

• The absorption of light by a material

https://www.sciencelearn.org.nz/resources/49-refraction-of-light

Which of the following is NOT a result of refraction?

• Reflection in a mirror

• Rainbows

• Magnifying glasses

• Lenses

https://www.sciencelearn.org.nz/resources/49-refraction-of-light

What causes light to refract?

• Change in color

• Change in temperature

• Change in intensity

• Change in speed as it enters a substance with a different refractive index

https://www.sciencelearn.org.nz/resources/49-refraction-of-light

Which substance has the highest refractive index?

• Air

• Water

• Glass

• Diamond

https://www.sciencelearn.org.nz/resources/49-refraction-of-light

What happens to light when it enters a substance with a higher refractive index?

• It speeds up and bends away from the normal

• It slows down and bends towards the normal

• It maintains its speed and direction

• It speeds up and bends towards the normal

https://www.sciencelearn.org.nz/resources/49-refraction-of-light

What type of lens is thicker in the middle than at the edges?

• Cylindrical lens

• Flat lens

• Biconcave lens

• Biconvex lens

https://www.sciencelearn.org.nz/resources/49-refraction-of-light

What did Isaac Newton demonstrate with his prism experiment?

• Light cannot be split into different colors

• Light travels faster in water than in air

• Light is a particle

• White light is made of all the colors of the rainbow

https://www.sciencelearn.org.nz/resources/49-refraction-of-light

Which color of light has the longest wavelength?

• Blue

• Green

• Red

• Violet

https://www.sciencelearn.org.nz/resources/49-refraction-of-light

What causes a secondary rainbow to appear?

• Light reflecting twice inside each droplet

• Light refracting at a single angle

• Light scattering in the atmosphere

• Light being absorbed by rain droplets

https://www.sciencelearn.org.nz/resources/49-refraction-of-light

What is the refractive index of violet light in glass?

• 1.500

• 1.480

• 1.532

• 1.513