CP Ch04.5 Momentum Conservation

What does Newton's third law state about the impulse on each object in an interaction?

• The impulse is directly proportional to the mass of the object.

• The impulse is inversely proportional to the acceleration of the object.

• The impulse is equal and opposite on each object.

• The impulse is always zero.

According to the text, what happens to the net momentum of a system when all forces are internal?

• Increases

• Remains unchanged

• Decreases

• Varies

What is conserved within a system according to the text?

• Energy

• Momentum

• Mass

• Velocity

According to the Summary of Momentum Conservation, what is the relationship between the change in momentum of one object and the change in momentum of the other object in the system?

• They are unrelated

• They are directly proportional

• They are inversely proportional

• They are equal and opposite

What is momentum described by?

• Magnitude only

• Direction only

• Both magnitude and direction

• Speed and time

Why is conservation of momentum crucial in scenarios like cannon firing, car collisions, and star explosions?

• To ensure the safety of individuals involved

• To prevent damage to the objects in motion

• To maintain the total momentum of the system

• To increase the speed of the objects

What does the law of conservation of momentum state?

• The momentum of a system changes in the absence of an external force

• The momentum of a system remains unchanged in the presence of an external force

• The momentum of a system remains unchanged in the absence of an external force

• The momentum of a system is always zero