Draw the diagram of an electric torch and explain its working.
Important Questions on Electricity and Circuits
Recall and complete the concept map given below.
What do you think would happen if we did not have an electric switch in a circuit?
Label the electric cell, switch, and the electric bulb in the circuit shown below. Also label the direction of the flow of electric current.
Renu spends a lot of her time outdoors. She walks to school in the morning, plays in the school playground in the afternoon, and walks back home in the evening. She notices that the length of her shadow does not remain the same throughout the day.
Do you think Renu is right? Does the length of her shadow really change?
Renu spends a lot of her time outdoors. She walks to school in the morning, plays in the school playground in the afternoon, and walks back home in the evening. She notices that the length of her shadow does not remain the same throughout the day.
Renu is not likely to grow tall or become short during the span of a single day, so why do you think her shadow changes in length through the day?
