13 practice sets · Page 1 of 1
Which of the following does not affect the speed of an object?
The distance traveled
The object's mass
The force acting on the object
The time of motion
Correct Answer: B — The object's mass
Explanation:
Mass does not directly determine the speed of an object.
If an object covers 50 meters in 5 seconds, what is its speed?
5 m/s
10 m/s
2 m/s
25 m/s
Correct Answer: B — 10 m/s
Explanation:
Speed = distance ÷ time = 50 ÷ 5 = 10 m/s.
What is the relationship between speed, distance, and time?
Speed = Distance × Time
Speed = Distance / Time
Speed = Time / Distance
Speed = Time × Distance
Correct Answer: B — Speed = Distance / Time
Explanation:
Speed is calculated by dividing distance by time.
If the displacement-time graph is a straight line, what can be said about the motion of the object?
The object is at rest
The object is in circular motion
The object is accelerating
The object is moving with uniform velocity
Correct Answer: D — The object is moving with uniform velocity
Explanation:
A straight-line displacement-time graph indicates uniform velocity.
An object starts from rest and moves with a constant acceleration of 2 m/s². What is its velocity after 5 seconds?
10 m/s
2 m/s
20 m/s
5 m/s
Correct Answer: A — 10 m/s
Explanation:
Using v = u + at, we get v = 0 + 2 × 5 = 10 m/s.
Which of the following is not a type of motion?
Circular motion
Rectilinear motion
Irregular motion
Rotational motion
Correct Answer: C — Irregular motion
Explanation:
Irregular motion is not classified as a standard type of motion in physics.
Which of the following describes an object in uniform motion?
The object is accelerating
The object is at rest
The object is changing its direction
The object covers equal distances in equal intervals of time
Correct Answer: D — The object covers equal distances in equal intervals of time
Explanation:
Uniform motion means covering equal distances in equal intervals of time.
Which of the following describes an object in motion?
It is moving with constant velocity
It is at rest
It is changing position over time
It is moving in a straight line
Correct Answer: C — It is changing position over time
Explanation:
An object is in motion if its position changes with time.
What is the term for motion along a straight line?
Circular motion
Rectilinear motion
Vibrational motion
Rotational motion
Correct Answer: B — Rectilinear motion
Explanation:
Motion along a straight path is called rectilinear motion.
An object travels 10 m east and then 10 m west. What is its displacement?
20 m
10 m
0 m
5 m
Correct Answer: C — 0 m
Explanation:
The object returns to its starting point, so displacement is zero.
What is the SI unit of acceleration?
m/s²
m/s
km/h
s/m
Correct Answer: A — m/s²
Explanation:
The SI unit of acceleration is meter per second squared (m/s²).
Which of the following is the correct formula for velocity?
v = u + at
v = u - at
v = u × at
v = u + a/t
Correct Answer: A — v = u + at
Explanation:
The equation v = u + at gives the final velocity for uniformly accelerated motion.
What is the SI unit of speed?
Kilometer
Meter per second
Second
Meter
Correct Answer: B — Meter per second
Explanation:
The SI unit of speed is meter per second (m/s).
