Everyday application of the basic principles of Mechanics TNPSC Group 1 Questions

Physics

Everyday application of the basic principles of Mechanics MCQ Questions

7.
Which best explains why we are able to accelerate forward when starting to run?
A.
The striking foot pushes backward against the ground. The friction with the ground provides an equal and opposite force forward.
B.
Because they are at fixed velocity
C.
Foot not touching the ground fully, entire body is like swinging
D.
All the above
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ANSWER :
A. The striking foot pushes backward against the ground. The friction with the ground provides an equal and opposite force forward.
8.
Which law of motion says that when you kick a Table, there is an equal force on your foot as there is on the Table?
A.
First
B.
Second
C.
Third
D.
None
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ANSWER :
C. Third
9.
Which law helps to define "inertia?"
A.
First
B.
Second
C.
Third
D.
None
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ANSWER :
A. First
10.
Which of Newton's Laws gives the reason for why you can feel things that you touch?
A.
First
B.
Second
C.
Third
D.
None
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ANSWER :
A. First
11.
_____________ is anything that can change the state of motion of an object.
A.
Weight
B.
Mass
C.
Force
D.
None
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ANSWER :
C. Force
12.
The formula related to Newton's second law of motion is
A.
F=ma
B.
F=-F
C.
F=m-a
D.
None of the above
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ANSWER :
A. F=ma