Homework Help: Physical Science

Posted by mysterychicken on Friday, May 22, 2009 at 5:18pm.

1.Nico uses wire to connect a battery, light bulb, and a switch, but the light bulb doesn't light up. What might explain this problem?
A.The circuit is closed
B.The wires are bent
C.The battery has too much power
D.The switch is open.
B?

2.What type of wave doesn't require a medium to travel through?
A.light wave
B.sound wave
C.an ocean wave
D.a tidal wave
??

Thanks
-MC

Physical Science - bobpursley, Friday, May 22, 2009 at 5:20pm
light waves, as an electromagnetic wave, do not require a physical medium.

No on the first on. Why would bent wires cause electricity not to flow?
Physical Science - mysterychicken, Friday, May 22, 2009 at 5:25pm
So A?
-MC
Physical Science - bobpursley, Friday, May 22, 2009 at 5:30pm
Goodness: MC, you dont know what the terms open and closed circuits mean. Review that, it is basic to all this.
Physical Science - mysterychicken, Friday, May 22, 2009 at 5:32pm
Ummm OK, thanks
-MC
Physical Science [got the answer] - mysterychicken, Friday, May 22, 2009 at 5:33pm
OK, I got it
D
-MC
Physical Science - Cherika Ro, Thursday, July 2, 2009 at 7:41pm
In order to coast just to the top of a hill 65 meters in vertical height, a person on a bicycle must have a speed at the bottom of approzimately?

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