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Quiz 3.1

Stonyhurst Southville International School is a premier learning institution that is fully accredited by WASC in the USA and certified under the ISO 9001:2008 standard. It provides education at the grade 10 level, as evidenced by a sample physics quiz containing multiple choice and problem solving questions given to grade 10 students to assess their understanding of concepts relating to electric charge, conduction, and the forces between charged particles.

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Jhun Lerry Manalo Tayan
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185 views2 pages

Quiz 3.1

Stonyhurst Southville International School is a premier learning institution that is fully accredited by WASC in the USA and certified under the ISO 9001:2008 standard. It provides education at the grade 10 level, as evidenced by a sample physics quiz containing multiple choice and problem solving questions given to grade 10 students to assess their understanding of concepts relating to electric charge, conduction, and the forces between charged particles.

Uploaded by

Jhun Lerry Manalo Tayan
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOCX, PDF, TXT or read online on Scribd
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STONYHURST SOUTHVILLE INTERNATIONAL SCHOOL

A Premier Learning Institution


Fully Accredited by WASC, USA
ISO 9001:2008 Certified

Name: _____________________________________________________ Rating: ___________________ /25


Grade 10 - __________________________________________________ Date: _________________________
QUIZ No. 1 IN PHYSICS
GENERAL DIRECTIONS: Read and analyze each statement and question. For items with choices, write
the capital printed letter of the correct answer on the space provided before each number.
A balloon has a negative charge when rubbed by a woolen cloth.

______1. If the balloon can attract some paper scraps, which of the following CANNOT be the
charge of paper scraps?
(A) positive (B) negative (C) neutral

______2. During rubbing, what have been transferred between the woolen cloth and the
balloon?
(D) electron (E) proton (F) neutron

If an insulator made of acetate is rubbed with a cloth, electrons move from the insulator to the cloth.

______3. What charge does the cloth now have?


(G) positive (H) negative (I) neutral

______4. What charge does the polythene insulator now have?


(J) positive (K) negative (L) neutral

If a rod has an unknown charge, how can the unknown charge be identified using a positively
charged rod?

______5. If the unknown charge is brought near to a positively charged rod and it is attracted to
this rod, then the unknown charge must be ________.
(M) positive (N) negative (O) neutral

______6. If the unknown charge is brought near to a positively charged rod and it is repelled by
this rod, then the unknown charge must be ________.
(P) positive (Q) negative (R) neutral

______7. Charging a neutral body by touching it with a charged body is called charging by ____.
(S) friction (T) induction (U) conduction
A plastic rod is rubbed on a duster. The rod becomes positively charged. Are these statements true or
false?

______8. The rod has gained protons.


______9. The duster has gained electrons.
______10. The duster has lost electrons.
______11. The duster has also become positively charged.
______12. The rod has lost electrons.
______13. The duster has become negatively charged.
II. Problem Solving (12 points)
Macy rubs a balloon with wool, giving the balloon a charge of -8.9x10-14 C.
What is the force between the balloon and a metal sphere that is charged to
25 C and is 2 km away?

A positive and a negative charge, each of magnitude 2.5x10-5 C, are


separated by a distance of 15 cm. Find the force on each of the particles.

A force of 2.4x102 N exists between a positive charge of 8.0x10-5 C and a


positive charge of 3.0x10-5 C. What distance separates the charges?

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