Physics Principles and Problems 2009

Section 4.3 : Interaction Forces

Self-Check Quizzes

1
Which statement regarding this image is true?

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A)Earth does not exert a force on the ball.
B)Earth does not exert a force on the table.
C)The soccer ball is part of two interaction pairs.
D)The table does not interact with the soccer ball.
2
The equation F A on B = – F B on A represents.
A)Newton's first law
B)Newton's second law
C)Newton's third law
D)Newton's forth law
3
In a tug-of-war the force exerted by the rope is called _____.
A)accelerated force
B)equal force
C)normal force
D)tension
4
The _____ is the perpendicular contact force exerted by a surface or another object.
A)accelerated force
B)equal force
C)normal force
D)perpendicular force
5
If the box in this image has a mass of 6.0 kg, what will the normal force of the table on the box be?

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A)9.8 N
B)50 N
C)88 N
D)110 N
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