Equations of Motion
Physics ⇒ Mechanics
Equations of Motion starts at 8 and continues till grade 12.
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See sample questions for grade 9
Describe a real-life situation where the equations of motion can be applied.
Explain the difference between speed and velocity.
Explain why the equations of motion cannot be used for non-uniform acceleration.
If an object moves with a constant velocity, what is its acceleration?
A ball is thrown downward with an initial velocity of 5 m/s from a height of 20 m. How long does it take to reach the ground? (Take g = 10 m/s2)
A ball is thrown vertically upwards with an initial velocity of 20 m/s. Assuming acceleration due to gravity is -10 m/s2, how high will it rise?
A bus starts from rest and attains a velocity of 25 m/s in 10 seconds. What is the distance covered?
A car covers 80 m in 4 seconds, starting from rest with uniform acceleration. What is its acceleration?
The area under a velocity-time graph represents:
(1) Acceleration
(2) Displacement
(3) Force
(4) Speed
Which equation of motion is best suited to find the final velocity when displacement, initial velocity, and acceleration are known, but time is not?
(1) v = u + at
(2) s = ut + (1/2)at2
(3) v2 = u2 + 2as
(4) s = vt
Which equation of motion would you use to find the distance covered when time, initial velocity, and acceleration are known?
(1) v = u + at
(2) s = ut + (1/2)at2
(3) v2 = u2 + 2as
(4) s = vt
Which of the following equations is used to calculate the displacement when initial and final velocities and time are known?
(1) s = ut + (1/2)at2
(2) s = ((u + v)/2) * t
(3) v = u + at
(4) v2 = u2 + 2as
Fill in the blank: The equation s = ut + (1/2)at2 gives the ________ covered by an object.
Fill in the blank: The equation v2 = u2 + 2as does not involve the variable ________.
Fill in the blank: The SI unit of acceleration is ________.
Fill in the blank: The SI unit of velocity is ________.
True or False: The displacement of an object can be zero even if the distance travelled is not zero.
True or False: The equations of motion are valid only for motion with constant acceleration.
True or False: The equations of motion can be used for both horizontal and vertical motion under constant acceleration.
True or False: The final velocity of an object can be less than its initial velocity if the acceleration is negative.
