Unit 18

Choose the correct option of the given options: The words hot & cold are used to describe ____________________________________.

• energy

• temperature

• workdone

• velocity

A____________ is a substance that can flow.

• wood

• fire

• solid

• fluid

On Celsius scale, the normal human body temperature is ________________ o C.

• 37

• 310

• 98

• 100

The particles in the matter have _____________________________.

• kinetic energy

• potential energy

• gravitational energy

• radiant energy

The greater the speed of the particles, the _____________________ will be the kinetic energy.

• smaller

• greater

• lower

• minimum

If the particles that make up an object have more kinetic energy, then that object ___________.

• feels cold

• feels neither hot not cold

• feels sometime hot and sometime cold

• feels hotter

The particles of a hot burner will have_____________ kinetic energy as compared to a cold burner.

• same

• less

• more

• no

The temperature of an object is a measure of the _____________of particles that make up that object.

• average potential energy

• average kinetic energy

• average mechanical energy

• average total energy

The SI unit of temperature is _________________________.

• Centigrade

• Celsius

• Fahrenheit

• Kelvin

Kelvin is abbreviated as _______________.

• K

• k

• O K

• K O