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 average net force calculated?

Back

Average net force can be calculated using the formula F = Δp/Δt, where F is the net force, Δp is the change in momentum, and Δt is the time interval.

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 is the relationship between force and acceleration?

Back

According to Newton's second law, force is directly proportional to acceleration, expressed as F = ma, where F is force, m is mass, and a is acceleration.

Front

What happens to the speed of an object when a net force is applied in the opposite direction?

Back

When a net force is applied in the opposite direction of an object's motion, the object's speed decreases.

Front

What is the effect of mass on momentum?

Back

An increase in mass results in an increase in momentum if the velocity remains constant, as momentum is directly proportional to mass.

Front

How does friction affect the motion of an object?

Back

Friction opposes the motion of an object, causing it to slow down or stop, and it must be overcome by an applied force to maintain motion.

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

What is the formula for calculating momentum?

Back

The formula for calculating momentum is p = mv, where p is momentum, m is mass, and v is velocity.

Front

How can the direction of net force be determined from a velocity-time graph?

Back

The slope of the velocity-time graph indicates acceleration, and the direction of the net force is in the same direction as the acceleration.