Equations of Motion Mastery

What is the first kinematic equation?

• v = u - at

• v = u * at

• v = u + at

• v = u / at

How do you calculate the displacement in uniform acceleration?

• s = ut + at

• s = vt + 0.5at^2

• s = ut + 0.5at^2

• s = 0.5u^2 + 0.5at^2

What is the acceleration due to gravity during free fall?

• 9.00 m/s²

• 8.0 m/s²

• 9.81 m/s²

• 10.5 m/s²

Define uniform acceleration in your own words.

• Uniform acceleration is when an object's speed decreases over time.

• Uniform acceleration refers to a random change in velocity.

• Uniform acceleration is the constant change in velocity of an object over time.

• Uniform acceleration occurs only when an object is at rest.

What is the second kinematic equation?

• v = u + at

• s = ut + 1/2at^2

• a = (v - u)/t

• v^2 = u^2 + 2as

How does air resistance affect free fall motion?

• Air resistance only affects objects with mass.

• Air resistance slows down the fall and can lead to terminal velocity.

• Air resistance has no effect on free fall.

• Air resistance increases the speed of the fall.

What is the relationship between velocity and time in uniform acceleration?

• Velocity fluctuates randomly with time.

• Velocity remains constant over time.

• Velocity decreases linearly with time.

• Velocity increases linearly with time.

Explain the concept of instantaneous velocity.

• Instantaneous velocity is the velocity of an object at a specific moment in time.

• Velocity calculated using distance and time

• Average velocity over a time interval

• The speed of an object regardless of direction

What does a horizontal line on a velocity-time graph represent?

• Increasing velocity

• Constant velocity

• Variable acceleration

• Decreasing velocity

How do you derive the third kinematic equation?

• v_f = v_i + at

• v_f^2 = v_i^2 + 2as

• s = v_i t + rac{1}{2}at^2

• v_f = v_i + 2as