Flashcardizz 7 Impulse-Momentum

Front

What is impulse in physics?

Back

Impulse is the product of the average force applied to an object and the time duration over which the force is applied. It is equal to the change in momentum of the object.

Front

Define momentum.

Back

Momentum is the product of an object's mass and its velocity. It is a vector quantity, meaning it has both magnitude and direction.

Front

What is the relationship between impulse and momentum?

Back

Impulse is equal to the change in momentum of an object. Mathematically, Impulse = ΔMomentum.

Front

How do you calculate impulse?

Back

Impulse can be calculated using the formula: Impulse = Force × Time.

Front

What is the formula for calculating momentum?

Back

Momentum (p) = Mass (m) × Velocity (v).

Front

Explain the concept of thrust in the context of rocket engines.

Back

Thrust is the force exerted by a rocket engine to propel it forward. It is generated by expelling mass in the opposite direction.

Front

What factors affect the time duration of thrust in a rocket engine?

Back

The time duration of thrust is affected by the thrust force and the total impulse provided by the engine.

Front

How does the conservation of momentum apply to collisions?

Back

In a closed system, the total momentum before a collision is equal to the total momentum after the collision.

Front

What is the significance of the moment of inertia in rotational motion?

Back

The moment of inertia is a measure of an object's resistance to changes in its rotational motion. It depends on the mass distribution relative to the axis of rotation.

Front

How do you calculate the force experienced during a collision?

Back

Force can be calculated using the formula: Force = Change in Momentum / Time of impact.