Momentum and Collisions DN

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 do you calculate momentum?

Back

Momentum (p) is calculated using the formula: p = m × v, where m is the mass in kilograms and v is the velocity in meters per second.

Front

What is the unit of momentum?

Back

The unit of momentum is kilogram meter per second (kg m/s).

Front

What is an elastic collision?

Back

An elastic collision is a type of collision where both momentum and kinetic energy are conserved.

Front

What is an inelastic collision?

Back

An inelastic collision is a type of collision where momentum is conserved, but kinetic energy is not conserved.

Front

If a biker has a mass of 75 kg and moves at 5 m/s, what is their momentum?

Back

375 kg m/s.

Front

A runner has a momentum of 670 kg m/s and is travelling at 9 m/s. What is their mass?

Back

74.4 kg.

Front

How do you find the velocity of an object if you know its momentum and mass?

Back

Velocity (v) can be found using the formula: v = p/m, where p is momentum and m is mass.

Front

Which has greater momentum: a tortoise with a mass of 275 kg moving at 0.55 m/s or a hare with a mass of 2.7 kg moving at 7.5 m/s?

Back

The tortoise has greater momentum.

Front

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

Back

Momentum is directly proportional to both mass and velocity; increasing either mass or velocity increases momentum.