KHS Momentum, Collisions & Impulse 2024

Front

What is momentum?

Back

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

Front

How does the mass of an object affect its momentum?

Back

The momentum of an object increases with an increase in mass, assuming velocity remains constant.

Front

How does the velocity of an object affect its momentum?

Back

The momentum of an object increases with an increase in velocity, assuming mass remains constant.

Front

What happens to the momentum of an object when it is in free fall?

Back

The momentum of an object in free fall increases as its velocity increases due to the acceleration of gravity.

Front

What is the principle of conservation of momentum?

Back

The total momentum of a closed system remains constant if no external forces act on it.

Front

In a collision, what is meant by 'sticky' or inelastic collision?

Back

In a sticky or inelastic collision, two objects collide and stick together, moving as a single object after the collision.

Front

How do you calculate the final velocity of two objects that stick together after a collision?

Back

Use the formula: (m1*v1 + m2*v2) / (m1 + m2), where m1 and m2 are the masses and v1 and v2 are their velocities before the collision.

Front

What is the formula for calculating momentum?

Back

The formula for momentum (p) is p = mv, where m is mass and v is velocity.

Front

What is the relationship between mass, velocity, and momentum?

Back

Momentum is directly proportional to both mass and velocity; increasing either will increase momentum.

Front

What is an example of a situation where momentum is conserved?

Back

In a closed system, such as two ice skaters pushing off each other, the total momentum before and after the push remains the same.