Question 1:

Which of the following is a scalar quantity?

A) Velocity
B) Speed
C) Acceleration
D) Displacement

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Explanation: The correct answer is B) Speed. Speed is a scalar quantity that represents the magnitude of velocity without considering its direction.

Question 2:

What is the SI unit of displacement?

A) Meters per second (m/s)
B) Meters per second squared (m/s²)
C) Meters (m)
D) Kilograms (kg)

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Explanation: The correct answer is C) Meters (m). Displacement is a vector quantity measured in meters (m).

Question 3:

What is the formula to calculate average velocity?

A) Velocity = Distance × Time
B) Velocity = Time / Distance
C) Velocity = Distance / Time
D) Velocity = Acceleration × Time

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Explanation: The correct answer is C) Velocity = Distance / Time. Average velocity is calculated by dividing the total displacement (distance) by the time taken.

Question 4:

Which of the following is true for an object in uniform motion?

A) The object is at rest
B) The object is accelerating
C) The object is moving with constant velocity
D) The object's displacement is zero

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Explanation: The correct answer is C) The object is moving with constant velocity. In uniform motion, the object maintains a constant velocity without any changes in speed or direction.

Question 5:

What does the slope of a distance-time graph represent?

A) Speed
B) Displacement
C) Acceleration
D) Time

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Explanation: The correct answer is A) Speed. The slope of a distance-time graph represents the speed of an object, calculated as the ratio of distance traveled to time taken.