Momentum Review

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

What happens to the momentum of an object when it collides with another object?

Back

The total momentum of the system (both objects) is conserved, meaning the total momentum before the collision equals the total momentum after the collision, provided no external forces act on them.

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

How does mass affect momentum?

Back

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

Front

What is the relationship between force and momentum?

Back

Force is the rate of change of momentum; a net force acting on an object will change its momentum over time.

Front

What is the principle of conservation of momentum?

Back

The principle states that in a closed system with no external forces, the total momentum before an interaction is equal to the total momentum after the interaction.

Front

What happens to the momentum of a stationary object when a moving object collides with it?

Back

The stationary object will gain momentum equal to the momentum lost by the moving object, assuming a perfectly elastic collision.

Front

What is the effect of walking on a large ship on its momentum?

Back

When a person walks on a large ship, the ship moves in the opposite direction (south) due to the conservation of momentum, albeit a very small amount.

Front

What is the formula for calculating momentum?

Back

Momentum (p) is calculated using the formula p = mv, where m is mass and v is velocity.

Front

What is the significance of the direction in momentum?

Back

Momentum is a vector quantity, meaning it has both magnitude and direction; the direction of momentum is the same as the direction of the object's velocity.