Questions from College Physics

Q: Which item/s in the following list is/are a

Which item/s in the following list is/are a vector quantity? volume, force, speed, length, time.

Q: If two vectors have the same magnitude, are they necessarily equal

If two vectors have the same magnitude, are they necessarily equal? If not, why not? Can two vectors with different magnitudes ever be equal?

Q: Compare the advantages and disadvantages of the two methods of vector addition

Compare the advantages and disadvantages of the two methods of vector addition (graphical and algebraic).

Q: Pulleys and inclined planes are examples of simple machines. Explain what

Pulleys and inclined planes are examples of simple machines. Explain what these machines do in Examples 2.4, 2.14, and (2.16) to make a task easier to perform.

Q: For a problem about a crate sliding along an inclined plane,

For a problem about a crate sliding along an inclined plane, is it possible to choose the x-axis so that it is parallel to the incline?

Q: A bird sits on a stretched clothesline, causing it to sag

A bird sits on a stretched clothesline, causing it to sag slightly. Is the tension in the line greatest where the bird sits, greater at either end of the line where it is attached to poles, or the sam...

Q: Does the concept of a contact force apply to both a macroscopic

Does the concept of a contact force apply to both a macroscopic scale and an atomic scale? Explain.

Q: The readings of the two spring scales shown in the drawing are

The readings of the two spring scales shown in the drawing are the same. (a) Explain why they are the same. (b) What is the reading?

Q: Which of the fundamental forces governs the motion of planets in the

Which of the fundamental forces governs the motion of planets in the solar system? Is this the strongest or the weakest of the fundamental forces? Explain.

Q: (a) Does a man weigh more at the North Pole

(a) Does a man weigh more at the North Pole or at the equator? (b) Does he weigh more at the top of Mt. Everest or at the base of the mountain?