Momentum

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 does momentum change when an object speeds up?

Back

When an object speeds up, its momentum increases because momentum is directly proportional to velocity.

Front

What happens to the momentum of an object moving at a constant speed?

Back

The momentum of an object moving at a constant speed remains constant, provided its mass does not change.

Front

If a car is moving eastward and slowing down, what can be said about its momentum?

Back

The momentum vector still points east, but its magnitude is decreasing as the speed decreases.

Front

What is the direction of momentum for an object moving westward and speeding up?

Back

The direction of the momentum vector is west, and its magnitude is increasing.

Front

What is the relationship between mass and momentum?

Back

Momentum is directly proportional to mass; if mass increases while velocity remains constant, momentum increases.

Front

Can momentum be negative?

Back

Yes, momentum can be negative if the object is moving in the opposite direction of the defined positive direction.

Front

What is the principle of conservation of momentum?

Back

The principle states that in a closed system, the total momentum before an event (like a collision) is equal to the total momentum after the event.

Front

How does the direction of momentum relate to velocity?

Back

The direction of momentum is the same as the direction of velocity; it indicates the direction in which the object is moving.

Front

What is an example of momentum in everyday life?

Back

A moving skateboard has momentum; the faster it moves and the heavier the skateboarder, the greater the momentum.