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 does a force affect momentum?

Back

A force applied to an object over time changes its momentum. The change in momentum is equal to the impulse applied, which is the product of force and the time duration it acts.

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

What is the law of conservation of momentum?

Back

The law of conservation of momentum 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

What happens to the speed of an object when it collides with a wall?

Back

If a moving object collides with a wall, the speed of the object may change depending on the nature of the collision (elastic or inelastic), but in many cases, it will reverse direction.

Front

What is the relationship between mass and acceleration in Newton's second law?

Back

Newton's second law states that the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass, expressed as F = ma.

Front

How do you calculate the average net force exerted on an object?

Back

The average net force can be calculated using the formula: Average Force = Change in Momentum / Time Interval.

Front

What is the effect of increasing mass on momentum?

Back

Increasing the mass of an object while keeping its velocity constant will increase its momentum, as momentum is directly proportional to mass.

Front

What is the significance of a force-time graph?

Back

A force-time graph shows how the force applied to an object changes over time, and the area under the graph represents the impulse applied to the object.

Front

What is a collision?

Back

A collision is an event where two or more bodies exert forces on each other for a relatively short time, resulting in a change in momentum.