Question

V.
Rate of doing work by an object is called_
vi.
A__
can exist independently in nature.
vii.
A substance in the__
state expands the most.
viii.
Clock pendulums are made of_
ix.
Sound waves are__
waves.
X.
Frequency =_​

Answer 1

Explanation:

V.

Rate of doing work by an object is called_mechanical energy

vi.

Atoms_

can exist independently in nature.

vii.

A substance in the_gas_

state expands the most.

viii.

Clock pendulums are made of_invar

ix.

Sound waves are longitudinal

waves.

X.

Frequency =_

hope it helps u....

Answer 2

Answer:

5) The Rate of doing work or rate of transfer of energy is called Power.6) An atom is the smallest particle of the element that can exist independently and retain all its chemical properties. A molecule is the smallest particle of an element or a compound capable of independent existence under ordinary conditions.7)Solid body expands the least, liquid more and gases expands most for a given change in temperature .8) The pendulum clock is made up of invar because invar's coefficient of thermal expansion is small. So, the length of the pendulum remains unaffected during changes in temperature..9)Sound waves in air (and any fluid medium) are longitudinal waves because particles of the medium through which the sound is transported vibrate parallel to the direction that the sound wave moves. A vibrating string can create longitudinal waves as depicted in the animation below.10)Frequency is the number of occurrences of a repeating event per unit of time. It is also referred to as temporal frequency, which emphasizes the contrast to spatial frequency and angular frequency. Frequency is measured in units of hertz (Hz) which is equal to one occurrence of a repeating event per second.