18 Questions
the amount of electrical power an appliance requires to work
wattage
a connection of electricity wires that is not made by a qualified electrician or does not meet the standard of the electricity laws
illegal connections
a solid rocky body that travels round a planet
moon
the star in our solar system
the Sun
the Sun and all the objects that travel around it
solar system
a huge ball of burning gas in space
star
large object that revolves around the Sun
planet
chunks of rock that travel around . the Sun
asteroid
the turning movement of an object around its axis
rotation
an instrument that magnifies distant objects and makes them seem closer
telescope
all the planets, stars, moons and other lumps of rock in space
bodies in space
piece of glass that bends light
lens
picture formed by light and focused on a screen
image
where light meets at a point
focus
a hand- held lens that magnifies small objects
magnifying glass
invisible waves given off by bodies in space, similar but different to light waves
radio waves
South Africa has one of the world's largest optical telescopes, called SALT. What does SALT stand for?
Southern African Large Telescope
What does SKA stand for?
Square Kilometre Array
Test your knowledge about electrical power, electrical connections, and astronomical bodies such as planets, stars, and the sun.
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