a complete or closed path through which charge can flow from one terminal f an electrical source to the other.
100
What is sound
a form of energy propagated from one point to another as a wave
100
What is the definition of energy
Capacity to do work
100
What is the angle of incidence and what is symbol
i, the angle between the incident ray and the normal
100
Please state the law of charges
Like charges repel and unlike charges attract
200
What does the symbol V, R stand for
voltage, resistance
200
What is Ultrasound
Sounds above the upper hearing limits
200
What is Kinetic energy and what is its formula
Energy a body possesses due to its motion
Ek=1/2m^2
200
What is the angle of reflection and what is its symbol
r, angle between the reflected ray and the normal
200
What is induction
production of electrical charge on the surface of a conductor under the influence of an electric field
300
what is a series circuit and parallel circuit
When the components are connected one after the other end to end
300
What is Infrasound
sounds with lower hearing limit
300
What is Potential energy
energy stored in an object due to its position, state or shape
300
cannot be formed on a screen, nor do the light rays pass through it
What is a virtual image
300
What is an electric field line
path a positive charge would take if it is free to move.
400
what is the formula for Voltage
V=IR
400
What is the speed of sound
340m per seconds -1
400
What is Gravitational Potential energy and what is its formula
energy which a body possesses because of its position relative to the ground.
gravitational potential energy change=mgh
g= gravitational field strength
400
What is a periscope used for and what is it
a periscope is a type of mirror used in submarines, it is used to look over high obstacles