Important Words Flashcards
Electric Circuit
System for transferring energy from one place to another.
Cell
A source of electrical energy that stores and then supplies energy to a circuit.
Battery
Two or more cells connected to provide electrical energy.
Components
Parts of an electric circuit.
Circuit diagram
Diagram of an electric circuit, drawn using standard symbols for electric components.
Electrical conductor
A material that electricity can go through.
Insulators
A material through which an electrical current is not able to travel.
Transfer
A process by which energy goes from one part of a system to another.
Fossil fuels
The remains of dead plants and animals that store energy from the Sun from millions of years ago.
Non -Renewable resources
Resources such as coal that cannot be replaced when they are used up.
Renewable energy resources
Energy sources that cannot be used up.
Non-renewable energy sources
that will eventually be used up.
Hydro- electric
Generating electricity using water-power.
Solar panels
A panels made up of a number of photovoltaic cells.
Photovoltaic cells
Devices that convert energy from the Sun into electricity.
Sun
The biggest star in oir Solar system.
Solar system
The sun and all the travel around it.
Planet
A large object that revolves around the sun.
Orbit
The path of one object in space around another, such as the path of the Earth around the sun.
Asteroid
Chunks of rock that travel around the sun
Rotation
The turning movement of an object around its axis.
Telescope
An instrument that magnifies distant objects and makes them seem closer.
Bodies in space
All the plantes, stars, moons and other lumps of rock .
Lens
A piece of glass that bends light.
Image
Picture formed by light and focused on a screen.
Focus
Where light meets a point.
Magnifies
Makes bigger
Magnifying glass
A hand held lens that magnifies small objects.
Optical
Used by our eyes
Radio waves
Invisible waves given off by bodies in space, similar but different to light waves.
Spacecraft
A vehicle that moves through space.
Rover
Vehicle designed to travel on planet’s in space.
Astronaut
People who go into space
Unmanned
Without people aboard to operate the spacecraft.
Solar panels
Panels that absorb energy from the Sun.
