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Natural Science
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True or False? I can use the internet WITHOUT asking my parents for permission.
False
Oops!
Okay!
What materials make good electrical insulators (electricity CANNOT flow through them)?
Wood, plastic, glass...
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True or false? I SHOULD give my personal information (like my home address) to strangers on the internet.
False
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Okay!
What are 2 examples of simple machines?
Lever, pulley, wheel and axel, inclined plane, screw...
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Machines need ____________ to work!
Energy
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Electrical energy changes into ___________ energy.
Thermal energy
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What type of energy is stored in food?
Chemical energy
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Batteries store _________________ energy.
Chemical energy
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What source of energy is powering this machine?
Solar energy
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Name 3 machines that you use every day.
Bicycle, computer, elevator, metro, wheels on backpack, etc....
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Electrical energy changes into ____________ energy.
Mechanical energy
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True or False? NEVER use an electrical appliance near water.
True
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Okay!
What source of energy is powering this machine?
Wind energy
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Okay!
What type of energy is produced by the sun?
Light energy, thermal energy
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Does this show safe behavior around electricity? Why or why not?
No, because the power socket is overloaded
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What materials make good electrical conductors (electricity CAN easily flow through them)?
Metal, water...
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Why do we coat electrical wires with rubber?
Rubber acts as an insulator and protects us.
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Why shouldn`t you swim in the ocean during a thunderstorm?
The water is an electrical conductor and you could get shocked if the lightning hits the water.
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What source of energy is powering this machine?
Human energy
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What type of energy does this rollercoaster have?
Electrical energy, mechanical energy
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What are 2 examples of complex machines?
Computer, sewing machine, construction equipment, etc....
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Electrical energy changes into ________________ energy.
Light energy
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Okay!
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