Statics 101

Force is defined by

• Newton's 1st law

• Newton's 3rd law

• Newton's 2nd law

• Pascal's law

Answer explanation

Check:

https://www.physicsclassroom.com/class/newtlaws/Lesson-3/Newton-s-Second-Law

and:

https://www.physicsclassroom.com/class/newtlaws/Lesson-2/The-Meaning-of-Force

Tags

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Force may appear in form of:

Select all correct answers!

• Push

• Pull

• Weight

• Thrust

• Tension

Answer explanation

Check this:

https://www.physicsclassroom.com/class/newtlaws/Lesson-2/The-Meaning-of-Force

and this:

https://youtu.be/--MDILG7Znk

Tags

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Which of the following is a unit of Force in SI system?

• Pascal (Pa)

• Pound (lb)

• Newton.meter (N.m)

• Newton (N)

• Newton/meter (N/m)

Answer explanation

Check this:

https://www.npl.co.uk/resources/q-a/what-is-the-si-unit-of-force

Tags

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Force is a vector which means:

• It has a magnitude (value) only.

• It has a direction only.

• It has a magnitude (value) and a direction.

• It does not have a magnitude (value) or a direction.

Answer explanation

Check this:

https://www.physicsclassroom.com/class/newtlaws/Lesson-2/The-Meaning-of-Force

and this:

https://www.physicsclassroom.com/class/vectors/Lesson-1/Vectors-and-Direction

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Which of the following is true about the force?

Select all correct answers

• It has a curve of action (acts along a curve)

• It has a line of action (acts along a straight line)

• It has a point of application

• It can be aplied in 2D or 3D spaces

Answer explanation

Check this:

https://www.physicsclassroom.com/class/newtlaws/Lesson-2/The-Meaning-of-Force

and this:

https://www.physicsclassroom.com/class/vectors/Lesson-1/Vectors-and-Direction

The magnitude of the horizontal component of F is:

Answer explanation

Follow the directions given in case 5 here: https://youtu.be/ehONERpC-rY

Tags

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The magnitude of the vertical component of F is:

Answer explanation

Follow the direction given in case 5 here: https://youtu.be/ehONERpC-rY

Tags

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The correct vector form of F is:

Answer explanation

Follow the direction given in case 5 here: https://youtu.be/ehONERpC-rY

Tags

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The correct vector form of F is:

Answer explanation

Follow the direction given in case 5 here: https://youtu.be/ehONERpC-rY

y component is negative!

Tags

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The correct vector form of F is:

Answer explanation

Follow the direction given in case 1-4 here: https://youtu.be/ehONERpC-rY

x and y components are negative!

Tags

NGSS.HS-PS2-1