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, provided no external forces act on the system.

Front

What is the formula for calculating change in momentum?

Back

The change in momentum (Δp) is calculated as Δp = p_final - p_initial.

Front

What is the relationship between force and momentum?

Back

The net force acting on an object is equal to the rate of change of its momentum, expressed as F = Δp/Δt.

Front

What does a positive momentum indicate about an object's motion?

Back

A positive momentum indicates that the object is moving in the positive direction of the chosen coordinate system.

Front

What does a negative momentum indicate about an object's motion?

Back

A negative momentum indicates that the object is moving in the opposite direction of the chosen coordinate system.

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 = FΔt.

Front

How does mass affect momentum?

Back

For a given velocity, an increase in mass results in a proportional increase in momentum.

Front

What happens to the speed of an object when it collides with a stationary object of greater mass?

Back

The speed of the moving object will decrease after the collision, and its direction may change depending on the masses involved.

Front

What is the significance of the slope of a velocity-time graph?

Back

The slope of a velocity-time graph represents the acceleration of the object.