Selecting Set force properties, the following window opens:

Information about the current layer content will appear in the top of the window (position and size).

The Impulse option can be:

• Auto: in this case, the object will automatically receive the force when the page starts;
• Push (“throw”): object will receive a force when “pushed” by the user;
• Pull: object will receive a force when “pulled” by the user;

Curved trajectory, when checked, uses a curved mathematical equation, instead of only send the object in a linear path.

When checked, the Apply only force from the impulse uses the minimum amount of force set by Kwik;

The Add amount of force in X and Y fields add more force to the default number used by Kwik. Play with these numbers until you reach the desired effect.