Light, Shadows, and Reflections Quiz

What is a substance which gives light ?

• Water

• Sun

• Wood

• Air

How many types of materials are there based on light transmission?

• Opaque, Transparent, Translucent

• Reflective, Transparent, Opaque

• Transparent, Translucent, Opaque

• Opaque, Translucent, Reflective

Can you think of creating a shape that would give a circular shadow if held in one way and a rectangular shadow if held in another way?

• Sphere

• Cylinder

• Cube

• Cone

In a completely dark room, if you hold up a mirror in front of you, will you see a reflection of yourself in the mirror?

• Yes, because the mirror reflects even in the dark

• No, because there is no light for reflection

• No, because the mirror is not positioned correctly

• Yes, because the mirror always shows a reflection

Why can't we see objects which are behind us?

• Because our eyes can only see in front of us

• Because there is no light behind us

• Because our eyes are not capable of seeing behind us

• Because objects behind us don't reflect light into our eyes

Malati noticed changes in the lengths of her shadows during the daytime. What could be those doubts?

• How is the shadow length change possible?

• Why do shadows always follow us?

• Why do shadows change length?

• Can we guess the time when we see the shadow?

How can you explain the straight line motion of light?

• Light travels in a circular path

• Light travels in a straight line

• Light travels in a zigzag pattern

• Light travels in a curved path

What is a pinhole camera?

• A camera with a digital display

• A camera with a mirror

• A simple camera without a lens with a tiny aperture

• A camera with a large lens

Why do we get shadows of different shapes of the same object?

• Because the object is not stable

• Because of the position of the light source and the object

• Because the object changes shape

• Because the shadow changes shape on its own

Classify the objects or materials given below as opaque, transparent or translucent and luminous or non-luminous.

• Transparent, Opaque, Translucent, Luminous, Non-luminous

• Opaque, Transparent, Translucent, Luminous, Non-luminous

• Transparent, Translucent, Opaque, Luminous, Non-luminous

• Translucent, Opaque, Transparent, Non-luminous, Luminous