Light and Shadows Quiz

Which of these objects is luminous?

• Mirror

• Lightbulb (turned on)

• Book

• Table

What do you call materials that block light completely and form a shadow?

• Transparent materials

• Opaque materials

• Translucent materials

• Reflective materials

Situational: John shines a flashlight on three objects: a mirror, a frosted glass, and a book. Which one will reflect the most light back to him?

• The frosted glass

• The book

• The mirror

• None of the objects

Situational: Sarah sees a shadow of her hand on the wall when she places it in front of a flashlight. What causes this shadow to form?

• Her hand reflects the light completely.

• Her hand absorbs all the light.

• Her hand blocks the light, creating a shadow.

• Her hand allows light to pass through partially.

Analogy: A non-luminous object is to a book as a luminous object is to a:

• Glass window

• Candle flame

• Wooden chair

• Plastic bottle

Which of these objects will allow light to pass through fully, making it transparent?

• Clear plastic bottle

• Frosted glass

• Wooden block

• Paper sheet