Question 1: A car accelerates from 10 m/s to 30 m/s over 5 seconds. Calculate the acceleration.

Answer: 4 m/s^2

Question 2: A bicycle increases its velocity from 0 m/s to 12 m/s in 4 seconds. What is its acceleration?

Answer: 3 m/s^2

Question 3: Calculate the acceleration if an object’s velocity changes from 25 m/s to 15 m/s in 10 seconds.

Answer: -1 m/s^2

Question 4: Construct a velocity-time graph showing a vehicle accelerating from 0 m/s to 20 m/s in 4 seconds. Label the axes.

Answer: Student draws a straight line sloping upward from (0,0) to (4,20).

Question 5: A runner accelerates uniformly from 5 m/s to 15 m/s in 5 seconds. What is the acceleration?

Answer: 2 m/s^2

Question 6: If a skateboarder’s velocity decreases from 8 m/s to 2 m/s in 3 seconds, what is the acceleration?

Answer: -2 m/s^2

Question 7: A train accelerates from 0 m/s to 60 m/s over 30 seconds. Calculate its acceleration.

Answer: 2 m/s^2

Question 8: On a velocity-time graph, a line slopes upward indicating acceleration. If the initial velocity is 5 m/s and after 4 seconds the velocity is 13 m/s, find the acceleration.

Answer: 2 m/s^2

Question 9: Identify and correct the mistake: A student calculated acceleration as (final velocity - initial velocity) / time, but got a negative value when the velocity increased.

Answer: The student likely mixed up initial and final velocities or made a sign error. Correct calculation: a = (Vf - Vi) / t.

Question 10: A car accelerates from 20 m/s to 50 m/s over 15 seconds. How much distance does it cover during this acceleration? (Use the average velocity method.)

Answer: Distance = 525 meters

Question 11: A cyclist accelerates at 1.5 m/s^2. How long will it take to reach 9 m/s starting from rest?

Answer: 6 seconds

Question 12: Explain why an acceleration of zero indicates constant velocity.

Answer: Because acceleration measures the rate of change of velocity, zero acceleration means velocity is not changing, indicating constant speed.