MEDIUM
Earn 100

How energy is produced in the sun?

Important Questions on Energy

EASY

Fill in the blank with a suitable word:

Our shadows are long during _____ (morning/afternoon) and evening.

EASY
How is a shadow formed?
EASY
How is a shadow formed?   
EASY
 What is a shadow? 
EASY
Shadow is always formed behind the source of light.
EASY
We need shadows to see objects around us.
EASY
A ball is kept in front of the following. In which case is a shadow not formed?
EASY
A shadow is formed on the same side of the source of light.
EASY
At noon, the shadow formed is shortest.
MEDIUM

Which of the following pictures correctly shows the tree's shadow?

Question Image

a. Question Image     b. Question Image      c. Question Image        d. Question Image

 

MEDIUM
Why does the size of the shadow differ throughout the day?
MEDIUM
Define shadow. How does the length of the shadow change?
EASY
Shadows can form in the dark.
MEDIUM
How are shadows formed?
EASY
The sun casts the _____ (shortest, longest) shadows at the beginning and end of the day.
EASY
Shadows cannot be formed without light.
EASY
Cotyledons are also called-
MEDIUM

Looking at the shadow in the image given, can you say what time of the day it is - beginning of the day, noon or end of the day? How could you say?

                                                                                            Question Image

EASY
Explain how shadows are formed.