If a direct relationship exists between variable a and variable b, what would happen to variable b if variable a is increased? it will increase too. it will decrease. it will go up and down in a cycle. it will respond randomly.

How is sound energy produced a. vibrating objects b. objects being heated c. temperature differences d. stationary objects

1. a camcorder has a power rating of 19 watts. if the output voltage from its battery is 7 volts, what current does it use?answer units 2. a 1.5m wire carries a 6 a current when a potential difference of 57 v is applied. what is the resistance of the wire? yourunits 3. a clothes dryer uses about 2 amps of current from a 240 volt line. how much power does it use? yourunits 4.

If you place a magnet under a clear dish, and sprinkle iron fillings over it, above what part of the magnet will most of the fillings gather