Light, Shadows and Reflections
| Description: This test covers concepts of Light, Shadows and Reflections. | |
| Number of Questions: 15 | |
| Created by: Vijay Puri | |
| Tags: Luminous Non-Luminous Opaque Transparent Translucent Mirror Reflection Shadow Different Types of Objects Classification of Plants into Herbs, Shrubs and Trees Concept of Shadow Stem and Its Functions Light, Shadow and Reflection Getting To Know Plants Mirror and Reflection Function of Leaf |
Objects which do not allow light to pass through them are called ______________ objects.
____________ objects are those objects which emit or give out light of their own.
_____________ objects allow light to pass through them partially.
If you are able to see clearly through an object, it is allowing light to pass through it and is __________.
Moon is an example of ___________ object.
Light travels in a ______________.
The following is/are required for the formation of shadows:
(a) Source of light
(b) Opaque object
(c) Screen
____________ are formed when an opaque object comes in the path of light.
_________ reflect light so that we can see images of ourselves.
__________ use reflections to see around corners.
The shape of the shadow of an object is dependent on __________________.
During a lunar eclipse, we see a part of the earth's shadow on the surface of the moon. This happens when the earth, the sun and the moon are in a straight line __________________.
If the distance of the object from the source of light is decreased, the size of the shadow ________, provided the distance between the source of light and the screen is constant.
Which of the following is/are luminous?
(a) Sun
(b) Moon
(c) Firefly
(d) A lighted torch
_________ is the bouncing back of light when it strikes a smooth surface, like a mirror.