Momentum 5.1 Practice (PPC)

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 is momentum conserved in collisions?

Back

In a closed system, the total momentum before a collision is equal to the total momentum after the collision, assuming no external forces act on the system.

Front

What is the formula for calculating impulse?

Back

Impulse is calculated using the formula Impulse = Force × Time, which is also equal to the change in momentum (Δp).

Front

What does a positive slope on a velocity vs. time graph indicate?

Back

A positive slope indicates that the object is accelerating in the positive direction.

Front

What does a negative slope on a velocity vs. time graph indicate?

Back

A negative slope indicates that the object is decelerating or moving in the negative direction.

Front

What is the relationship between force and acceleration?

Back

According to Newton's second law, Force = Mass × Acceleration (F = ma), meaning that the force applied to an object is directly proportional to its acceleration.

Front

What is the effect of mass on 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 happens to the momentum of an object when it collides with a stationary object?

Back

The momentum of the moving object is transferred to the stationary object, resulting in a change in momentum for both objects.

Front

What is the significance of the area under a force vs. time graph?

Back

The area under a force vs. time graph represents the impulse applied to an object, which is equal to the change in momentum.

Front

How do you determine the direction of net force from a velocity vs. time graph?

Back

The direction of the net force can be determined by the slope of the velocity vs. time graph; a positive slope indicates a net force in the positive direction, while a negative slope indicates a net force in the negative direction.