Question
How do we know an object is moving faster compared to the speed of another object?
✓
Answer
By finding the distance travel by a moving body in unit time $1$ hr or $1$ sec we know the speed of an object that help us to know which one is moving faster i.e. having greater speed.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
→
How does a periscope help us see things not in direct line of sight?
Paheli noticed water being pulled up by a motor pump to an overhead tank of a five storeyed building. She wondered how water moves up to great heights in the tall trees standing next to the building. Can you tell why?
How water and minerals are transported to leaves from roots?
Name different types of silk. Which variety of silk is most common and how it is obtained?
Name the most common silk moth. What are the characteristics of silk fibres obtained from the cocoons of this silk moth?
Why is the colour of blood is red?
An image depicts a candle being lit. The wax of the candle is melting and evaporating to form a flame, with the wick burning and producing light and heat.
(a) Explain the physical and chemical changes occurring when a candle burns. What happens to the wax, and what is produced during combustion?
(b) If you cover the candle with a glass jar, the flame will eventually go out. What causes this, and what does this tell you about the requirements for combustion?
(a) Explain the physical and chemical changes occurring when a candle burns. What happens to the wax, and what is produced during combustion?
(b) If you cover the candle with a glass jar, the flame will eventually go out. What causes this, and what does this tell you about the requirements for combustion?
All the rain that falls over an area is not utilised. Do you agree? Explain.
If you have a burning candle and you cover it with a glass, what happens to the flame? Explain using scientific reasoning.