What is sound energy?
It is a way of vibrations that spreads from its source.
Sound
Light
It is the flow of heat between objects that are touching.
Conduction
It is the flow of electrical charges through a material.
Current
Mention one electrical safety advice:
1. Don't touch electrical outlets when they are in use.
2. Don't unplug cords by yanking on them.
3. Never touch an electrical outlet if you or the outlet are standing in water.
Sound only travels through gases.
False.
Sound can travel through solids, liquids and gases.
A combination of electrical and magnetic energy.
Electromagnetic radiation
Thermal energy can cause matter to change phase.
True or False?
True
It is a material through which an electrical charge can move easily.
Conductor
It is a map of a circuit.
Circuit diagram.
It is a measure of how fast particles are vibrating.
Frequency
Visible light makes up a big part of the electromagnetic spectrum.
True or False?
False
Visible light makes up a small part of the electromagnetic spectrum.
It is a measure of thermal energy. It is related to the average kinetic energy of all its particles.
Temperature
It is a material that tries to prevent the flow of an electric charge.
Resistor
It is a measure of electrical force, provided by an energy source.
Volt (V)
True or False?
The higher the frecuency is, the higher the pitch of the sound.
True
In straight lines.
What are three ways that heat moves?
Conduction, convection and radiation.
rubber and plastic
copper, gold and silver
Parts of a simple circuit.
Battery(source of energy), switch, conductor/s and resistors.
Unit to measure the sound's loudness.
Decibels.
Light can be bent or refracted when in hits a new material at an agle.
True or False?
True
It is the total of all the kinetic and potential energy of atoms in an object.
Thermal Energy
They are strong resistors that can stop most electrical currents.
Insulators.
It is a circuit that can have many branches and it is more complex than simple circuits.
Parallel circuit