Conservation of Linear Momentum Quiz

Which of the following statements describes momentum?

• It is the product of body’s mass and velocity.

• It is the product of body’s mass and acceleration.

• It is the sum of body’s mass and velocity.

• It is the sum of body’s mass and acceleration

What is the momentum of the two cars after collision if its momentum before collision is 50 kgm/s?

• 5 kgm/s

• 15 kgm/s

• 30 kgm/s

• 50 kgm/s

What type of quantity are momentum and velocity?

• director

• reactor

• scalar

• vector

What is the unit for momentum?

• kg●m/s

• N●kg

• kg●m/s2

• N●m/s

What word can best describe the total momentum in an isolated system?

• conserved

• large

• lost

• low

What is the unit of velocity?

• kg

• kg●m/s

• m/s

• all of these

Calculate the momentum of a car, which has a mass of 1000 kg and moves with a velocity of 20 m/s.

• 500 kgm/s

• 10, 020 kgm/s

• 20000 kgm/s

• 99 980 kgm/s

The total momentum of two objects before collision is 50 kg. m/s. What will be their total momentum after collision?

• 50 kg●m/s

• 175 kg●m/s

• 350 kg●m/s

• not enough information

What is the total momentum of the system before collision?

• 0

• 0.50 kg●m/s

• 1.0 kg●m/s

• -1.0 kg●m/s

If there is no external force acting on the system, what is the total momentum of the system after collision?

• 0

• 0.50 kg●m/s

• 1.0 kg●m/s

• -1.0 kg●m/s