Understanding Momentum

It is a term used to describe a moving object, and it is expressed as a product of mass and velocity.

• Momentum

• Impulse

• Both

• None

To which of the following does the momentum of an object depend?

• Mass and velocity

• Force and speed

• Velocity and acceleration

• Time and acceleration

A 45 kg runner who runs with a speed of 5 m/s, what is his momentum?

• 25 kg-m/s

• 225 kg-m/s

• 250 kg-m/s

• 0 kg-m/s

Meisha is playing a bowling ball with a mass of 2.0 kg and moving it at a rate of 2.0 m/s. What is the momentum of the bowling ball?

• 4.0 kg-m/s

• 2.0 kg-m/s

• 1.0 kg-m/s

• 0.5 kg-m/s

What is the equation for momentum?

• p = m/v

• p = m × v

• p = v/m

• p = m + v

If a car's mass is doubled but its velocity remains the same, what happens to its momentum?

• It is halved.

• It remains the same.

• It is doubled.

• It is quadrupled.

Which of the following objects has the greatest momentum?

• A stationary truck.

• A rolling soccer ball.

• A moving bicycle.

• A speeding motorcycle.

Momentum is a property of moving objects and is defined as the product of an object's mass and velocity. The greater the mass or velocity of an object, the more momentum it has. The Law of Conservation of Momentum states that the total momentum before and after a collision remains constant in a closed system, provided no external forces act on it. This principle is often observed in car crashes, sports, and space travel. For example, when two ice skaters push off each other, they move in opposite directions with equal and opposite momentum.

Based on the passage, what two factors determine an object’s momentum?

How does the Law of Conservation of Momentum apply when two ice skaters push off each other?

Give a real-world application of momentum and explain how it works.