The Move power, when upgraded, allows you to move objects of Silhouette 1. Do you think a character would qualify as an “object?”

And as a corollary, could you use the Control upgrade to play human pinball by flinging characters into each other, causing them both to take damage?

The way I read the rules I would say yes but I would let the Jedi make an opposed discipline check vs discipline, resilience, piloting (target has jetpack), athletics or whatever seems appropriate. This is something we see in the movies and games so Human Pinball should even be canon

Yes, you can use Move to affect humanoid targets. In fact, when asked how to replicate a "Force slam" type of effect as we see used in the prequels, the answer from the devs was to use the Move power.

Against minions and no-name rivals, you'd just need to generate sufficient Force Points to trigger both the basic power and the Strength Upgrade. Per Force and Destiny, any kind of opposed check should be saved for when the target is a Nemesis or an important Rival, simply as excess dice rolling slows the game down.

As for the damage, you can either throw the unlucky sod into the nearest wall/floor, or into another person, dealing damage to both individuals with a single ranged combat check. If you want to hurl multiple targets, you'd need the Magnitude Upgrades.

Where it can get a bit tricky is using Move against a minion group. Different GMs have different opinions on how it works, ranging from treating the minion group as a single target (as they are for combat checks) to counting each minion as an individual. I'd say decide what approach works best for your group and run with it.

Dono's got the right of it.

I tend to follow rules as intended with the "Move" force power.

For instance: Dealing damage with the Force power is strictly the purview of the "Control: Hurl" upgrade. In another words, throwing a silhouette 1 object at a person requires the same amount upgrades and activation costs as lifting a person and dropping them from a great height, as it is throwing one person into another with the intent to only deal damage to one of those targets.

Dealing damage to two people with two silhouette 1 objects uses the same activation/upgrade costs as throwing one person into another with the intent to deal damage to them both, and the same difficulty as picking up one silhouette 1 object and throwing it at one person, then another in the same round.