Conservation of Momentum

What is momentum?

• The addition of an object's mass and velocity
• The subtraction of an object's mass and velocity
• The product of an object's mass and velocity
• The division of an object's mass and velocity

What symbol represents momentum?

• m
• p
• v
• N

How are units of momentum expressed? 

• m/s
• kg
• kg-m/s
• m/s-s

When two objects collide, what happens to all of the momentum?

• It Increases
• It remains the same
• It vanishes
• It decreases

When objects collide, the total amount of momentum stays the same. This states....

• The law of conservation of momentum.
• law of conservation of energy
• Newton's 1st Law
• Newton's 2nd Law

Calculate the momentum of an object with a mass of 100 kg that moves with a velocity of 20 m/s west.

• 200 m/s
• 2000 kg-m/s
• 2000 m/s
• 200 kg-m/s

Conservation of Momentum is explained by

• Newton's 1st Law
• Newton's 3rd Law
• Newton's 2nd Law

Momentum of an object depends on

• Mass and Volume
• Mass and Weight
• Velocity and Acceleration
• Mass and Velocity

Which of the following has the smallest amount of momentum?

• Jet being towed toward airport
• Baby crawling on floor
• Track athlete running a race
• A loaded truck driven at highway speeds

Two football players with mass 75 kg and 100 kg run directly toward each other with speeds of 6 m/s and 8 m/s respectively. If they grab each other as they collide, the combined speed of the two players just after the collision would be:

• 2 m/s 
• 3.4 m/s 
• 4.6 m/s 
• 7.1 m/s

Tags

NGSS.HS-PS2-2