We apply two forces, each force has a magnitude of 5 N, to a certain object. The

Question

We apply two forces, each force has a magnitude of 5 N, to a certain object. The forces are equal in magnitude but in opposite directions. The Net force is:

Force = 5 N

Force = 0 N

Force = 10 N

None of the above

Galileo "demolished" Aristotle's hypothesis about falling bodies by introducing the Experimental Method applied to Inclined Planes.

True

False

If an object is moving with a constant speed in Rectilinear Motionwe can say it is in Mechanical Equilibrium.

True

False

According to Newton's First Law of Mechanics an object that is not compelled by an applied Force should remain at rest.

True

False

Accelerationis a physical quantity that describes the change in the velocity of a moving object.

True

False

A stone is dropped off the top of a tower. This motion is called Free Falland involves the Acceleration of Gravity g.

True

False

The fundamental difference between the concepts of Speedand Velocity consists in that Velocities always involve a direction.

True

False

When an object slides (or tries to slide) across a surface, it feels a certain Force calledFriction.

True

False

The Mass of any object can be interpreted as a measure of its Inertia.

True

False

Force = 5 N

Force = 0 N

Force = 10 N

None of the above

In the case of Free Fall the involved Force is Gravity, and Newton's Second Law leads to: Force= Mass×g True O False

Explanation / Answer

1) net force is zero. 2) true. 3) false. 4) false . 5)true. 6)true. 7) true. 8)true. 9) false 10) true

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