1
PHYS 250 Final Exam 2025 COMPLETE
EXAM QUESTIONS AND VERIFIED
ANSWERS |RECENTLY TESTING REAL
EXAM QUESTIONS| 100% SOLVED!!
Given the vectors 𝐶→=2𝑖̂ +7𝑗̂ →=2^+7�^ and 𝐷→=14𝑖̂ +38𝑗̂ �→=14�^+38�^,
find the angle 𝜃� between them
Select one:
a. 𝜃 = 86
b. 𝜃= 4∘
c. 𝜃 =0∘
d. 𝜃 = 10∘ - 🧠ANSWER ✔✔b. 𝜃= 4∘
A spider lowers herself on a single strand of silk at constant speed. Taking into
account air resistance, which of the following must be true?
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, 2
Select one:
a.The tension in the silk is zero.
b.The tension in the silk equals the spider's weight.
c.The tension in the silk is greater than the spider's weight.
d.The tension in the silk is less than the spider's weight. - 🧠ANSWER ✔✔d.The
tension in the silk is less than the spider's weight.
Given the vectors 𝐴→=6𝑖̂ +3𝑗̂ �→=6�^+3�^ and 𝐵→=𝑖̂ +9𝑗̂ �→=�^+9�^,
find their scalar product 𝐴→⋅𝐵→�→⋅�→
Select one:
a. 𝐴→⋅𝐵→=6𝑖̂ +27𝑗̂
b. 𝐴→⋅𝐵→=45
c. 𝐴→⋅𝐵→=54𝑖̂ +27𝑗̂
d. 𝐴→⋅𝐵→=33 - 🧠ANSWER ✔✔d. 𝐴→⋅𝐵→ = 33
Which is the definition of a derived unit?
Select one:
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STATEMENT. ALL RIGHTS RESERVED
, 3
a. A unit which can be measured directly.
b. A unit which can not be measured directly.
c. A unit which is based on other (basic) units.
d. A unit which can be derived from a mathematical formula. - 🧠ANSWER ✔✔c.
A unit which is based on other (basic) units.
Torque is given by the formula, 𝜏→=𝐹→×𝑑→�→=�→×�→, where 𝐹→�→ is
a force and 𝑑→�→ is a displacement. Which of the following is the magnitude of
torque resulting from a 2.4 N force applied 17 cm from the point of rotation, if the
force is applied perpendicular to the displacement vector?
Select one:
a. 0 N⋅m
b. 40.8 N⋅m
c. 0.41 N⋅m
d. 4.1 N⋅m - 🧠ANSWER ✔✔c. 0.41 N⋅m
When a small car pulls a trailer for a move, which of the following explains why
the trailer moves?
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STATEMENT. ALL RIGHTS RESERVED
, 4
Select one:
a. The car exerts a larger force on the trailer than the trailer does on the car.
b. The action-reaction pair is in the linkage, which pulls the trailer with larger force
than that with which it pulls the car.
c. While the force of the trailer on the car is equal and opposite to the force of the
car on the trailer, the total of all forces acting on the car are unbalanced.
d. The trailer will not move. - 🧠ANSWER ✔✔c. While the force of the trailer on
the car is equal and opposite to the force of the car on the trailer, the total of all
forces acting on the car are unbalanced.
A Ferris wheel having a radius of 8 m has a velocity of 8 m / s. Is there a danger of
the riders flying off?
Select one:
a. Yes, the Ferris wheel is moving too fast
b. No the Ferris wheel is not moving too fast.
c. Possibly. It depends on the density of the air.
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY 4
STATEMENT. ALL RIGHTS RESERVED
PHYS 250 Final Exam 2025 COMPLETE
EXAM QUESTIONS AND VERIFIED
ANSWERS |RECENTLY TESTING REAL
EXAM QUESTIONS| 100% SOLVED!!
Given the vectors 𝐶→=2𝑖̂ +7𝑗̂ →=2^+7�^ and 𝐷→=14𝑖̂ +38𝑗̂ �→=14�^+38�^,
find the angle 𝜃� between them
Select one:
a. 𝜃 = 86
b. 𝜃= 4∘
c. 𝜃 =0∘
d. 𝜃 = 10∘ - 🧠ANSWER ✔✔b. 𝜃= 4∘
A spider lowers herself on a single strand of silk at constant speed. Taking into
account air resistance, which of the following must be true?
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY 1
STATEMENT. ALL RIGHTS RESERVED
, 2
Select one:
a.The tension in the silk is zero.
b.The tension in the silk equals the spider's weight.
c.The tension in the silk is greater than the spider's weight.
d.The tension in the silk is less than the spider's weight. - 🧠ANSWER ✔✔d.The
tension in the silk is less than the spider's weight.
Given the vectors 𝐴→=6𝑖̂ +3𝑗̂ �→=6�^+3�^ and 𝐵→=𝑖̂ +9𝑗̂ �→=�^+9�^,
find their scalar product 𝐴→⋅𝐵→�→⋅�→
Select one:
a. 𝐴→⋅𝐵→=6𝑖̂ +27𝑗̂
b. 𝐴→⋅𝐵→=45
c. 𝐴→⋅𝐵→=54𝑖̂ +27𝑗̂
d. 𝐴→⋅𝐵→=33 - 🧠ANSWER ✔✔d. 𝐴→⋅𝐵→ = 33
Which is the definition of a derived unit?
Select one:
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY 2
STATEMENT. ALL RIGHTS RESERVED
, 3
a. A unit which can be measured directly.
b. A unit which can not be measured directly.
c. A unit which is based on other (basic) units.
d. A unit which can be derived from a mathematical formula. - 🧠ANSWER ✔✔c.
A unit which is based on other (basic) units.
Torque is given by the formula, 𝜏→=𝐹→×𝑑→�→=�→×�→, where 𝐹→�→ is
a force and 𝑑→�→ is a displacement. Which of the following is the magnitude of
torque resulting from a 2.4 N force applied 17 cm from the point of rotation, if the
force is applied perpendicular to the displacement vector?
Select one:
a. 0 N⋅m
b. 40.8 N⋅m
c. 0.41 N⋅m
d. 4.1 N⋅m - 🧠ANSWER ✔✔c. 0.41 N⋅m
When a small car pulls a trailer for a move, which of the following explains why
the trailer moves?
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY 3
STATEMENT. ALL RIGHTS RESERVED
, 4
Select one:
a. The car exerts a larger force on the trailer than the trailer does on the car.
b. The action-reaction pair is in the linkage, which pulls the trailer with larger force
than that with which it pulls the car.
c. While the force of the trailer on the car is equal and opposite to the force of the
car on the trailer, the total of all forces acting on the car are unbalanced.
d. The trailer will not move. - 🧠ANSWER ✔✔c. While the force of the trailer on
the car is equal and opposite to the force of the car on the trailer, the total of all
forces acting on the car are unbalanced.
A Ferris wheel having a radius of 8 m has a velocity of 8 m / s. Is there a danger of
the riders flying off?
Select one:
a. Yes, the Ferris wheel is moving too fast
b. No the Ferris wheel is not moving too fast.
c. Possibly. It depends on the density of the air.
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY 4
STATEMENT. ALL RIGHTS RESERVED
