Kinematics and Motion Concepts

Front

What is momentum?

Back

Momentum is the product of an object's mass and its velocity, represented by the formula p = mv, where p is momentum, m is mass, and v is velocity.

Front

How does mass affect momentum?

Back

An increase in mass will increase momentum if velocity remains constant, as momentum is directly proportional to mass.

Front

What is impulse?

Back

Impulse is the change in momentum of an object when a force is applied over a period of time, calculated as Impulse = Force × Time.

Front

What is the relationship between force and momentum?

Back

The change in momentum of an object is equal to the impulse applied to it, which is the product of force and the time duration of its application.

Front

What happens to the momentum of an object in a collision?

Back

In a closed system, the total momentum before the collision is equal to the total momentum after the collision, known as the law of conservation of momentum.

Front

What is the formula for calculating average velocity?

Back

Average velocity is calculated as the total displacement divided by the total time taken, represented as v_avg = Δx / Δt.

Front

How does velocity change when an object is in free fall?

Back

In free fall, the velocity of an object increases uniformly due to the acceleration of gravity, approximately 9.81 m/s².

Front

What is the difference between speed and velocity?

Back

Speed is a scalar quantity representing how fast an object is moving, while velocity is a vector quantity that includes both speed and direction.

Front

What is uniform acceleration?

Back

Uniform acceleration occurs when an object's velocity changes at a constant rate over time.

Front

How do you calculate the final velocity of an object under constant acceleration?

Back

The final velocity can be calculated using the formula v_f = v_i + at, where v_f is final velocity, v_i is initial velocity, a is acceleration, and t is time.