Updated 26 May 2025
Straighter Line Physics Questions
with Detailed Verified Answers
When a small car pulls a trailer for a move, which of
the following explains why the trailer moves?
✓✓ 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.
Suppose you are driving a car at a constant speed of
40 mph in a straight line. All of a sudden the road
curves to the right but you manage to keep driving at
exactly the same speed. Which of the following
statements is correct?
✓✓ There was a net force acting on the car.
Given the vectors C=2i^+7j^ and D=14i^+38j^D, find the
angle θ between them.
✓✓ θ=4∘
Match each of the following descriptions of motion with
the appropriate graph.
resting
uniform motion
accelerated motion
, Updated 26 May 2025
oscillating motion
✓✓ 1-B; 2-D; 3-C; 4-A
A juggler is juggling 3 balls. If she throws them 2.4 m
in the air at an angle of 80° relative to the horizontal,
what is the time between throws? (You should ignore
air drag and the time it takes for the juggler to move
balls from one hand to the other.)
✓✓ 0.47 s
Given the vectors C=1.5i^+6.2j^ and D=4.4i^+7.3j^,
calculate the magnitude of their vector product.
✓✓ 16.3
Which of the following statements concerning friction
between the surfaces of two objects is correct?
✓✓ The force of friction mostly depends on the nature of the two
surfaces.
A 2.5 kg object is suspended from a spring with a
spring constant of 48 N / m. The mass is pulled 0.25 m
downward from its equilibrium position and released.
Which of the following is the maximum kinetic energy of
the object?
, Updated 26 May 2025
✓✓ 1.5 J
Why is (vector) A⋅ (vector) B =AxBx+AyBy
✓✓ All the cross-terms are equal to zero.
Consider a mass m that is attached to a rope such that
the mass is in uniform circular motion. Which of the
following is the magnitude of the centripetal force?
✓✓ mv 2/r
Which of the following applies to the tangential velocity
v of uniform circular motion?
✓✓ constant speed but not constant velocity
If the cross product of a vector of length 5 and a vector
of length 3 results in a vector of length 10, what is the
angle between them?
✓✓ 42°
Which of the following is not a vector?
✓✓ 2 kg of mass under a table
The Ideal Gas law is given by which equation? (n is the
number of moles of the gas)
, Updated 26 May 2025
✓✓ PV = nRT
Two vectors can be added graphically by __________.
✓✓ adding them tip to tail
Consider a rectangle with a base of 0.567 m and a
height of 1.606 m. What is its area?
✓✓ 0.911 m2
A mass of 5.2 kg is accelerated to 4.0 m / s2 when a
force of magnitude F is applied to it. If the same force is
applied to another object causes it have an acceleration
of 1.8 m / s2, what is the mass of this object?
✓✓ 12 kg
The equation for torque is given by τ=F×dτ where F is a
force applied at a distance d→ from the axis of rotation.
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 at a 45∘ angle to
the displacement vector?
✓✓ 0.29 N⋅m
Which is the definition of a derived unit?
Straighter Line Physics Questions
with Detailed Verified Answers
When a small car pulls a trailer for a move, which of
the following explains why the trailer moves?
✓✓ 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.
Suppose you are driving a car at a constant speed of
40 mph in a straight line. All of a sudden the road
curves to the right but you manage to keep driving at
exactly the same speed. Which of the following
statements is correct?
✓✓ There was a net force acting on the car.
Given the vectors C=2i^+7j^ and D=14i^+38j^D, find the
angle θ between them.
✓✓ θ=4∘
Match each of the following descriptions of motion with
the appropriate graph.
resting
uniform motion
accelerated motion
, Updated 26 May 2025
oscillating motion
✓✓ 1-B; 2-D; 3-C; 4-A
A juggler is juggling 3 balls. If she throws them 2.4 m
in the air at an angle of 80° relative to the horizontal,
what is the time between throws? (You should ignore
air drag and the time it takes for the juggler to move
balls from one hand to the other.)
✓✓ 0.47 s
Given the vectors C=1.5i^+6.2j^ and D=4.4i^+7.3j^,
calculate the magnitude of their vector product.
✓✓ 16.3
Which of the following statements concerning friction
between the surfaces of two objects is correct?
✓✓ The force of friction mostly depends on the nature of the two
surfaces.
A 2.5 kg object is suspended from a spring with a
spring constant of 48 N / m. The mass is pulled 0.25 m
downward from its equilibrium position and released.
Which of the following is the maximum kinetic energy of
the object?
, Updated 26 May 2025
✓✓ 1.5 J
Why is (vector) A⋅ (vector) B =AxBx+AyBy
✓✓ All the cross-terms are equal to zero.
Consider a mass m that is attached to a rope such that
the mass is in uniform circular motion. Which of the
following is the magnitude of the centripetal force?
✓✓ mv 2/r
Which of the following applies to the tangential velocity
v of uniform circular motion?
✓✓ constant speed but not constant velocity
If the cross product of a vector of length 5 and a vector
of length 3 results in a vector of length 10, what is the
angle between them?
✓✓ 42°
Which of the following is not a vector?
✓✓ 2 kg of mass under a table
The Ideal Gas law is given by which equation? (n is the
number of moles of the gas)
, Updated 26 May 2025
✓✓ PV = nRT
Two vectors can be added graphically by __________.
✓✓ adding them tip to tail
Consider a rectangle with a base of 0.567 m and a
height of 1.606 m. What is its area?
✓✓ 0.911 m2
A mass of 5.2 kg is accelerated to 4.0 m / s2 when a
force of magnitude F is applied to it. If the same force is
applied to another object causes it have an acceleration
of 1.8 m / s2, what is the mass of this object?
✓✓ 12 kg
The equation for torque is given by τ=F×dτ where F is a
force applied at a distance d→ from the axis of rotation.
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 at a 45∘ angle to
the displacement vector?
✓✓ 0.29 N⋅m
Which is the definition of a derived unit?
