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.

Explanation:

1. Mass is a measure of the force of gravity on an object. ___false__

2. Most objects have at least two forces acting on them at all times. __True___   ( because of presence of reaction  force or friction force )

3. If opposing forces are unequal in strength, the net force is less than zero. __false___

4. The SI unit for weight is the newton. _true

5. When two forces act on an object in the same direction, the net force equals zero. false

6. When forces act in opposite directions on an object, they are subtracted to yield the net force. ___true__

7. Every sport involves forces. _true

8. Forces are always balanced when they act on an object in the same direction. __false___

9. Whenever an object is stationary, it has no forces acting on it. _false ( it may have two equal and opposing force acting on it )

10. Two forces acting in the same direction always result in a stronger force.

true  ( they add up )

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