Light Mini Review

Scientists use telescopes to see the planets and other celestial objects in the sky. Which of the following describes how the objective lens of the telescope helps a scientist observe the planets?

• The objective lens produces light

• The objective lens absorbs light from the sky

• The objective lens reflects light

• The objective lens refracts light

The students look through the side of the aquarium and notice the image of the tongs appears larger. Which property of light are the students observing?

• Light can be refracted and separated into different colors as it moves from air into a different medium

• Light is refracted as it moves from air into a new medium and make the tongs arrear larger

• Light travels in a straight line and can be refracted and bounce back into the air

• Light is absorbed by the water and reflected off the glass

In an activity, a student floats a toy boat in an aquarium. What causes the part of the boat's hull that is underwater to appear larger than the part just above the water line?

• Reflection

• Absorption

• Conduction

• Refraction

Students classify objects by the properties of reflection and refraction. Which is a list of objects that best reflect light?

• Prism, water, camera

• Water, cardboard, clear container

• Foil, shiny pan, mirror

• Mirror, wood, water

Which of the following objects do NOT reflect much light?

Select TWO answers.

• Bathroom mirror

• White car

• Black shirt

• Wooden block

• Copper penny

Students perform an investigation to compare and contrast the effects of reflection and refraction. What tools are most helpful to students when exploring refraction?

Select TWO correct answers.

• Magnet

• Prism

• Hand lens

• Mirror

• Spring scale

• Refraction
• Reflection

• Reflection
• Refraction

• Reflection
• Refraction

A student placed a pencil in a cup of water.  The pencil appears broken because light-

• always travels in a straight line
• bends when it passes through water and slows down

• makes the water in the glass evaporate
• reflects the pencil on the water's surface