Questions
- Differentiate between:
- Heat and Temperature
- Conductors and Insulators
2. Compare
- Compare: Conduction, Convection, Radiation
- Explain
- How ventilation is provided in rooms?
- Why the freezer compartment of a refrigerator is always kept in its upper portion?
- Why two loosely fitted garments are warmer them one heavy garment?
- During day time, why is it colder in shade?
- In this arrangement water in the paper pan kept on wise mesh is heated. Water boils but paper does not catch fire.
4. Give Reasons
- Buffaloes enjoy a dip in river or in lake on a hot summer afternoon
- On a cold day, the metal door handles is felt colder than the wooden door
- A blanket wrapped around your body in winter keeps it warm but when wrapped around an ice block prevents it from melting.
English