Share 4INT_SCIENCE REVIEW 1ST TERM
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What should you never do with live wires?
Touch
What do we call light that bounces off a surface?
Arriving ray
Reflected ray
What do we call light that comes from a light source?
Reflected ray
Arriving ray
What gives energy to a circuit?
Battery
Lamp
Wire
What type of water has no salts and is made by boiling and cooling steam?
Pure water
Tap water
Distilled water
What connects an electric wire to an electricity supply?
Switch
Wall socket
Plug
What is the picture of an object seen in a mirror or on a screen called?
image
bouncing
ray
What kind of surface does a mirror have?
Smooth and shiny
Dull and rough
Smooth and dull
What happens to the brightness of all lamps when you add another lamp to a circuit?
The same as
Less brightly
More brightly
What happens to the brightness of all lamps when you add another cell to a circuit?
More brightly
Less brighlty
The same as
Name 4 planets in the solar system?
.....
What is the name of the star at the center of our Solar System?
The Sun
The Sun is a star. True or False?
True
How long does it take for Earth to go around the Sun?
365 and 1/4 days
What is a device used to open and close a circuit?
Switch
What is a material that does not let electricity pass through it?
Insulator
