Grade 7 Practical Physics

determination of density of a solid by using a measuring cylinder

determination of density of a liquid by using a density bottle

to prove that sound is produced due to vibration produced in a medium

to prove that sound travels through solids

to prove that sound travels through liquid

to show the reflection of sound

to prove that pitch of sound increases with the decreases in length of vibrating in column

to prove that pitch of sound increases with increases in frequency

to prove that pitch of sounds depends upon the thickness of a vibrating string

to prove that pitch of a sound depends upon the length of vibrating strings

to prove that sound is produced when the air is blown through a silt

to prove that sound is produced by turning folk is due the vibrationo pongs

sound can not travel through vacuum

to prove that liquids expand on heating

to prove that gases expand in volume of heating

to prove that heat energy travels from the hot end of the ruler towards its cold end

to prove that copper easily allows the heat energy to flow through it,but class does not

solids expands on heating and contract on cooling

to prove that equal lengths of different solid expands by different amounts when heated equally

to prove experimentally that water is bad conductor of heat

to prove experimentally that air is bad conductor of heat

to prove convection in liquids

experiment to prove convection in gase

to prove that light travels in straight line

to verify law of reflection and to show the imaige is formed as far behind the plane mirror as the object is in front of it

to show plane mirror produces lateral inversion

why do the aeroplane flying high in the sky not cost their shadows

how is lunar eclipse caused

how is solar eclipse caused

closed and open circuit

material such as cotton or rubber does not allow the electric current to flow through them

to study the properties of series circuit and parallel circuit