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 the change in momentum calculated?

Back

The change in momentum (Δp) is calculated as the final momentum (pf) minus the initial momentum (pi), or Δp = pf - pi.

Front

What is the principle of conservation of momentum?

Back

The principle 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 factors affect the momentum of an object?

Back

Momentum is affected by the mass of the object and its velocity. Increasing either mass or velocity increases momentum.

Front

What is the relationship between force and momentum?

Back

The relationship is described by the equation F = Δp/Δt, where F is force, Δp is the change in momentum, and Δt is the time interval over which the change occurs.

Front

What does a slope on a velocity-time graph represent?

Back

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

Front

How can you determine the direction of net force from a velocity-time graph?

Back

The direction of the net force can be determined by the direction of the acceleration, which is indicated by the slope of the velocity-time graph.

Front

What happens to the momentum of a cart when it collides with a wall?

Back

When a cart collides with a wall, its momentum changes due to the force exerted by the wall, which can cause the cart to stop or change direction.

Front

What is impulse?

Back

Impulse is the change in momentum resulting from a force applied over a period of time, calculated as Impulse = F × Δt.

Front

How does mass affect the acceleration of an object when a constant force is applied?

Back

According to Newton's second law, acceleration is inversely proportional to mass when a constant force is applied; greater mass results in less acceleration.