PHYSICS MULTIPLE CHOICE QUESTIONS SET 127

PHYSICS

MULTIPLE CHOICE QUESTIONS SET 127

1. ________ Lightning/electroscope is a high energy electric discharge.
 
2. The upper portion of a cloud carries _____ negative/positive charges.
 
3. ________ Heat/temperature gives the measure of the degree of hotness or coldness of a body.
 
4. The electrical resistance of a conductor ________ increases/decreases on heating.
 
5. For the same amount of heat given the solids expand the ________least/most.
 
6. Transfer of heat from a body at a higher temperature to a body at a lower temperature when in direct contact is called _______ convection/conduction.
 
7. Conduction takes place in _______ solids/liquids.
 
8. When liquids are heated, they expand the density _________ decreases/increases.
 
9. ___________ Conduction/convection is the transfer of heat due to the actual movement of particles.
 
10. An _________ is a device based on the principle of total internal reflection.
Answer: Optical fiber