Kinematic Equations and Motion Variables Quiz

Which of the following is NOT one of the five main motion variables discussed?

• Time

• Force

• Initial velocity

• Displacement

In IB physics, which symbol is used to represent initial velocity?

• u

• v

• i

• v0

What is the unit of acceleration derived from the rate of change of velocity?

• Seconds per meter

• Meters per second cubed

• Meters per second squared

• Meters per second

If a car accelerates from 15 m/s to 35 m/s in 10 seconds, what is its acceleration?

• 3 m/s²

• 2 m/s²

• 4 m/s²

• 1 m/s²

Which equation represents the final velocity in terms of initial velocity, acceleration, and time?

• v = u * at

• v = u - at

• v = u / at

• v = u + at

How can you find displacement from a velocity-time graph?

• By finding the slope

• By finding the area under the curve

• By finding the y-intercept

• By finding the x-intercept

What is the second kinematic equation derived using average velocity?

• s = ut + 1/2 at²

• s = (v + u)/2 * t

• s = vt + 1/2 at²

• s = ut - 1/2 at²

Which kinematic equation would you use if acceleration is not needed?

• v² = u² + 2as

• s = ut + 1/2 at²

• v = u + at

• s = (v + u)/2 * t

If a plane accelerates at 4.8 m/s² for 15 seconds, what is the displacement if it starts from rest?

• 600 meters

• 480 meters

• 720 meters

• 540 meters

What is the initial speed of a car that skids for 9 meters in 3 seconds before stopping?

• 12 m/s

• 6 m/s

• 3 m/s

• 9 m/s