waves
What is a waves?
Any disturbance that travels through matter and space, transmitting energy from one location to another.
Its ability to change or to produce changes in other objects.
Energy
What is acceleration?
The ratio of the change in instantaneous speed and the time needed for the change to occur. Any change in direction of the velocity vector also counts as acceleration.
What is electricity?
Set of phenomena associated to the presence of electric charges and their movements.
The process of transfer of thermal energy from one object to objects at lower temperatures.
Heat
What are the three types of dimensions of a wave?
Two dimensional wave, three dimensional wave and one dimensional wave.
What is a machine?
A device that transforms, transfers, or transports energy for a specific purpose.
What is average speed?
The relationship between the distance traveled and the time taken to travel it.
What creates electricity?
Electrons and protons.
What is the thermal energy of a object?
The sum of the kinetic energies of all its particles.
What are the two types of waves?
Longitudinal and transverse waves.
What is energy measured in?
Joules
What is instantaneous speed?
The speed at which an object is traveling at a particular instant in time.
It’s the unit of electric charge (SI unit).
Coulmob
What is temperature?
A measurement of the average kinetic energy of its particles.
Light rays pass through this type of lens and spread out.
Concave lens
What’s mechanical energy?
The sum of the gravitational potential energy and the kinetic energy of an object.
What is the formula for ratio of change (acceleration)?
A= (sf - si) / (tf - ti)
It’s the opposition to the flow of electrons?
Resistance
An object's increase in volume caused by the increase in kinetic energy of its particles.
Thermal expansion
What type of wave is a sound wave (dimension and type)?
Three dimensional, longitudinal wave.
What’s the law of conservation of energy?
The law of conservation of energy states that energy can be neither created nor destroyed.
What is uniform motion?
Occurs when the instantaneous speed remains constant.
In what ways can charging occur?
Friction, induction and conduction.
A system of reference established around two temperatures to which certain numerical values are assigned.