Exploring the Concept of Momentum

What is the definition of momentum?

• The sum of mass and velocity

• The product of mass and velocity

• The ratio of mass to velocity

• The difference between mass and velocity

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What are the units of momentum?

• Kilograms per second

• Meters per second

• Kilogram meters per second

• Meters per second squared

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Why does a train have high momentum?

• Because it moves very slowly

• Because it moves very fast

• Because it has a large mass

• Because it has a small mass

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NGSS.HS-PS2-2

What happens to the momentum of a sports car when it reaches its top speed?

• It increases

• It becomes zero

• It remains the same

• It decreases

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NGSS.HS-PS2-2

According to Newton's Second Law, what is force equal to?

• Mass times velocity

• Mass times acceleration

• Mass divided by acceleration

• Velocity divided by time

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NGSS.HS-PS2-1

How can force be related to momentum?

• Force is the product of momentum and time

• Force is the sum of momentum and time

• Force is the change in momentum over time

• Force is the difference between momentum and time

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What does the slope of a momentum vs. time graph represent?

• The acceleration of the object

• The velocity of the object

• The mass of the object

• The force acting on the object

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NGSS.HS-PS2-2

If the momentum of an object is changing, what must be true?

• The mass is changing

• The velocity is changing

• The time is changing

• The force is constant

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What does it mean if a momentum vs. time graph is steeper for one object compared to another?

• The object with the steeper graph has more force acting on it

• The object with the steeper graph has less force acting on it

• The object with the steeper graph has a constant force acting on it

• Both objects have the same force acting on them

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NGSS.HS-PS2-1

Why is momentum considered a vector quantity?

• Because it has both magnitude and direction

• Because it has only direction

• Because it has only magnitude

• Because it is always positive

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NGSS.HS-PS2-2