PHYS202 Exam 1 2025/2026 Exam
Questions and Correct Answers | New
Update
Two charged balls are
repelling each other as
they hang from the
ceiling. What can you
say about their
charges? - 🧠ANSWER ✔✔both are positive or both are negative
When you rub a plastic rod with fur, the
plastic rod becomes negatively charged
,and the fur becomes positively
charged. As a consequence of rubbing
the rod with the fur, - 🧠ANSWER ✔✔the rod gains mass and the fur loses
mass
When we say charge is conserved,
we mean that charge can - 🧠ANSWER ✔✔only be transferred from one
place to
another
conductor - 🧠ANSWER ✔✔A material whose
conduction electrons are free to move
throughout. Metals are good
conductors.
insulator - 🧠ANSWER ✔✔A material whose electrons
rarely move from atom to atom.
Most insulators
are non-metals
, A metal ball hangs from
the ceiling by an
insulating thread. The
ball is attracted to a
positive-charged rod held
near the ball. The charge
of the ball must be: - 🧠ANSWER ✔✔negative or neutral
What is the magnitude of the
force F2? (F1 is 3N) - 🧠ANSWER ✔✔The force of one on the other
of a pair is the same as the reverse F2 is 3N
If we increase one charge to 4Q,
what is the magnitude of F1? (F1 is 3N) - 🧠ANSWER ✔✔F1 = k(4Q)(Q)/r2
so magnitude of F1 is 12N
Two balls with charges +Q and +4Q are
fixed at a separation distance of 3R. Is it
possible to place another charged ball Q0
3
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
Questions and Correct Answers | New
Update
Two charged balls are
repelling each other as
they hang from the
ceiling. What can you
say about their
charges? - 🧠ANSWER ✔✔both are positive or both are negative
When you rub a plastic rod with fur, the
plastic rod becomes negatively charged
,and the fur becomes positively
charged. As a consequence of rubbing
the rod with the fur, - 🧠ANSWER ✔✔the rod gains mass and the fur loses
mass
When we say charge is conserved,
we mean that charge can - 🧠ANSWER ✔✔only be transferred from one
place to
another
conductor - 🧠ANSWER ✔✔A material whose
conduction electrons are free to move
throughout. Metals are good
conductors.
insulator - 🧠ANSWER ✔✔A material whose electrons
rarely move from atom to atom.
Most insulators
are non-metals
, A metal ball hangs from
the ceiling by an
insulating thread. The
ball is attracted to a
positive-charged rod held
near the ball. The charge
of the ball must be: - 🧠ANSWER ✔✔negative or neutral
What is the magnitude of the
force F2? (F1 is 3N) - 🧠ANSWER ✔✔The force of one on the other
of a pair is the same as the reverse F2 is 3N
If we increase one charge to 4Q,
what is the magnitude of F1? (F1 is 3N) - 🧠ANSWER ✔✔F1 = k(4Q)(Q)/r2
so magnitude of F1 is 12N
Two balls with charges +Q and +4Q are
fixed at a separation distance of 3R. Is it
possible to place another charged ball Q0
3
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
