Linear Momentum

Front

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

Back

The momentum of an object is directly proportional to its mass and velocity. Momentum (p) is calculated as p = mass (m) × velocity (v).

Front

Is momentum a scalar or vector quantity?

Back

Momentum is a vector quantity, meaning it has both magnitude and direction.

Front

Calculate the momentum of a 50 kg ball rolling at 5 m/s.

Back

The momentum is 250 kg*m/s (p = m × v = 50 kg × 5 m/s).

Front

Which has more momentum: a car at rest or a bike moving at 15 mph?

Back

The bike has more momentum because the car's momentum is zero (p = 0) while the bike has a positive momentum.

Front

What happens to the momentum of a toy car if its mass is doubled and its velocity is halved?

Back

The momentum stays the same because momentum is calculated as p = m × v. If mass is doubled and velocity is halved, the product remains constant.

Front

Define linear momentum.

Back

Linear momentum is the product of an object's mass and its velocity, represented as p = m × v.

Front

What is the unit of momentum?

Back

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

Front

How does momentum change in a collision?

Back

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

Front

What is the formula for calculating momentum?

Back

The formula for calculating momentum is p = m × v, where p is momentum, m is mass, and v is velocity.

Front

If an object's mass is tripled and its velocity remains constant, what happens to its momentum?

Back

The momentum increases threefold because momentum is directly proportional to mass.