Determine if the following statements are true or false. _____ 1. Mass is a measure of the force of gravity on an object. _____ 2. Most objects have at least two forces acting on them at all times. _____ 3. If opposing forces are unequal in strength, the net force is less than zero. _____ 4. The SI unit for weight is the newton. _____ 5. When two forces act on an object in the same direction, the net force equals zero. _____ 6. When forces act in opposite directions on an object, they are subtracted to yield the net force. _____ 7. Every sport involves forces. _____ 8. Forces are always balanced when they act on an object in the same direction. _____ 9. Whenever an object is stationary, it has no forces acting on it. _____ 10. Two forces acting in the same direction always result in a stronger force.