U2: L1: Understanding Momentum and Impulse

What is the definition of momentum?

• Momentum is the product of mass and velocity.

• Momentum is the force applied to an object.

• Momentum is the distance traveled by an object.

• Momentum is the rate of change of acceleration.

Explain the impulse-momentum theorem.

• The impulse-momentum theorem relates impulse to the change in momentum of an object.

• Impulse is equal to momentum.

• The theorem only applies to stationary objects.

• Momentum is independent of impulse.

How do you calculate impulse?

• Impulse = Energy × Time

• Impulse = Force × Time or Impulse = Change in Momentum

• Impulse = Mass × Velocity

• Impulse = Work × Distance

Provide a real-world application of momentum.

• Creating a marketing strategy

• Designing a new smartphone

• Calculating the speed of a car

• Vehicle safety design and crash testing.

What factors can affect momentum?

• Temperature and pressure

• Mass, velocity, external forces, and friction.

• Time and distance

• Color and shape

How does impulse relate to changes in momentum?

• Impulse is the same as force.

• Impulse decreases momentum.

• Momentum is independent of impulse.

• Impulse is equal to the change in momentum.

In what scenarios is momentum conserved?

• Momentum is conserved when external forces are present.

• Momentum is conserved in systems with friction.

• Momentum is conserved in all types of collisions.

• Momentum is conserved in isolated systems with no external forces.

Describe how mass and velocity influence momentum.

• Mass and velocity directly influence momentum; momentum increases with higher mass or velocity.

• Higher mass decreases momentum regardless of velocity.

• Momentum only depends on the shape of the object.

• Momentum is unaffected by mass or velocity.