Welcome to the double bass!
Yes, that's right, sounds as if you need some rosin, for starters. You might read some of the threads about rosin preferences.
Rosin helps the bow hairs grab the string as the bow is passed along it. A lot of folks start with "Pops" rosin, plus its inexpensive.
If you buy Pops, tear down the edge of the paper cup until you can see the top corner of the rosin contained therein. Apply the rosin to the bow hair by stroking the bow on the exposed rosin cake somewhere between 1-3 times. Too much rosin is as problematic as too little. Don't touch the bow hair with your fingers.
Use the bow between the bridge and an inch or so above the bottom of the fingerboard, so that you don't have sticky rosin where you will also be plucking. It will be easier to "sound" open strings if you are bowing closer to the fingerboard, even perhaps an inch or so above the end of the fingerboard.
It will take awhile to get the rosin "worked" into both your strings and bow, so it may be quite scratchy sounding at first.
A good teacher can help you a lot with all of this. Is there an professional orchestra in your area? If so, section members may be able to help you find a good instructor.
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