Momentum and Impulse

In the table above, what is the momentum of the jeepney?

• 6,000 kg•m/s

• 40,000 kg•m/s

• 20,000 kg•m/s

• 3,000 kg•m/s

Tags

NGSS.MS-PS2-2

Two identical cars are travelling along EDSA. Which of the two cars would have a greater momentum?

• the slower car

• the faster car

• both have the same momentum

• cannot be easily determined

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-1

A 25-kg girl is riding a 5-kg with a velocity of 5 m/s the East. What is the total momentum of a girl and a bike together?

• 100 kg•m/s

• 125 kg•m/s

• 150 kg•m/s

• 200 kg•m/s

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Which has more momentum, a heavy truck moving at 30 km/h or a light truck moving at 30 km/h?

• heavy truck

• light truck

• both has the same momentum

• cannot be determined

In certain martial arts, people practice breaking a piece of wood with the side of their bare hand. Use your understanding of impulse to explain how this can be done without injury to the hand.

• Given the same change in momentum, when the time interval is smaller the impact force is bigger.

• Given the same change in momentum, when the time interval is bigger the impact force is bigger.

• Given the same change in momentum, when the time interval is smaller the impact force is smaller.

• Given the same change in momentum, when the time interval is bigger the impact force is smaller.

Tags

NGSS.HS-PS2-3

A bus and a car are travelling along EDSA having the same velocity. Which of the two vehicles would have a greater momentum?

• the bus

• the car

• both have same momentum

• cannot be easily determined

Tags

NGSS.MS-PS3-1

What is the formula for momentum (p)?

• p=m+v

• p=m×v

• p=v/m

• p=m×a

Answer explanation

The formula for momentum (p) is defined as the product of mass (m) and velocity (v), represented as p = m × v. This means that momentum increases with either greater mass or higher velocity.

How does momentum change if a car's speed is doubled?

• Momentum stays the same.

• Momentum is halved.

• Momentum doubles.

• Momentum quadruples.

Answer explanation

Momentum is calculated as the product of mass and velocity (p = mv). If the speed of the car is doubled, the momentum also doubles. However, since momentum depends on the square of velocity in kinetic energy, the overall effect is that momentum quadruples.

Tags

NGSS.HS-PS2-2

Which statement about momentum is true?

• Heavier objects always have less momentum.

• Momentum depends only on velocity.

• Momentum is the product of mass and velocity.

• Momentum is measured in newtons.

Answer explanation

The correct statement is that momentum is the product of mass and velocity. This means that both the mass of an object and its speed contribute to its momentum, making this choice accurate.

What is the momentum of a 1000 kg car moving at 20 m/s?

• 10,000 kg·m/s

• 20,000 kg·m/s

• 40,000 kg·m/s

• 50,000 kg·m/s

Answer explanation

Momentum is calculated using the formula: momentum = mass × velocity. For a 1000 kg car moving at 20 m/s, momentum = 1000 kg × 20 m/s = 20,000 kg·m/s. Thus, the correct answer is 20,000 kg·m/s.

Tags

NGSS.HS-PS2-2