AQA A LEVEL JUNE 2025 PHYSICS 7408 EXAM QUESTIONS WITH CORRECT AND VERIFIED ANSWERS

AQA A LEVEL JUNE 2025 PHYSICS 7408/ 3BC PAPER 3BC ENGINEERING PHYSICS QUESTION
AND CORRECT ANSWERS|100% PASS




You are holding a positive charge and there are positive charges of equal magnitude 1 mm to
your north and 1 mm to your east. What is the direction of the force on the charge you are
holding?

A - To the Northeast

B - To the East

C - To the South

D - To the Southwest - CORRECT ANSWER -D - To the Southwest



Four +2 μC charges are placed at the positions (10 cm, 0 cm), (−10 cm, 0 cm), (0 cm, 10 cm),
and (0 cm, −10 cm) such that they form a diamond shape centered on the origin. A charge of
+5 μC is placed at the origin. If the force between a +2 μC and a +5 μC charge separated by
10 cm has a magnitude of 9 N, which of the following can we say about the force on the +5
μC charge at the origin in this case?

A - The force on the charge at the origin is 0

B - The force on the charge at the origin is 36 N

C - The force on the charge at the origin is 18 N

D - The force on the charge at the origin is 9 N - CORRECT ANSWER -A - The force on the
charge at the origin is 0



A charge of +0.001 C is 1 mm to your right and another charge of +1000 C is 1 mm to your
left. You are holding a charge of −1 C. Which of the following statements is/are true?

Check all that apply.

- Because the charge on the left is so much larger than the one on the right, there is no force
from the +0.001 C charge on the charge you are holding.

- The net force on the charge you are holding is to your right.

,- The magnitude of the force on the charge you are holding would be the same if it were +1
C instead of −1 C

- The force on the charge you are holding from the charge on your left is 1,000,000 times as
large as the force from the charge on your right. - CORRECT ANSWER -- The magnitude
of the force on the charge you are holding would be the same if it were +1 C instead of −1 C

- The force on the charge you are holding from the charge on your left is 1,000,000 times as
large as the force from the charge on your right.



If three uncharged styrofoam balls are placed together and agitated so that one gains +3 C of
charge and another gains +4 C of charge, how much charge must there be on the third one?

A - +7 C

B - +1 C

C-0C

D - -7 C - CORRECT ANSWER -D - -7 C



What is the SI unit of charge?

A - Coulomb

B - Faraday

C - Ampere

D - Ohm

E - Volt - CORRECT ANSWER -A - Coulomb



If a negatively charged rod is held near a neutral metal ball, the ball is attracted to the rod.
This happens because

A - of magnetic effects

B - the ball tries to pull the rod's electrons over to it

C - the rod polarizes the metal

D - the rod and the ball have opposite charges - CORRECT ANSWER -C - the rod polarizes
the metal

, A rod attracts a positively charged hanging ball. The rod is

A - Negative

B - Neutral

C - Either negative or neutral

D - Either positive or neutral

E - Positive - CORRECT ANSWER -C - Either negative or neutral



The charge of sphere 2 is twice that of sphere 1. Which vector below shows the force of 2 on
1?

(+) (++) -->



A <---

B <--

C <-

D -->

E ---> - CORRECT ANSWER -B <--



Which is the direction of the net force on the charge at the lower left? - CORRECT
ANSWER -B


A negative point-charge of charge −Q is situated as shown in (Figure 1). Suppose another
negative charge q0 is placed at location P. The electric field at location P due to the charge
−Q is __________, and the electric force exerted on the charge q0 at location P is
___________.



q0

(----) (.-)

-Q P