Momentum and Impulse

   If F× t = m× ∆v, solve for ∆v/t.      ∆v/t =             

• Force per mass

• Force divided by mass

• Mass divided by force

Tags

NGSS.HS-PS2-1

Which of the following has more momentum?

• most massive thing moving slowly

• least massive thing moving slowly

• least massive thing moving quickly

• most massive thing moving quickly

• very massive thing not moving at all
  
  

Tags

NGSS.HS-PS2-2

What is the momentum of a person weighing 1,000 N running at 5 m/s?

• 500 kg m/s

• 200 kg m/s

• 20 kg m/s

Tags

NGSS.HS-PS2-2

If a large truck is driving on the road and collides with an insect, which of the following statements is NOT true?

• The truck slows down when it hits the insect.

• Both accelerate at the same speed.

• Both experience the same force.

• Both experience the same change in momentum.

• The insect has a greater change in velocity.

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-2

Two cars are driving down the street in opposite directions. Unfortunately, they collide head-on. What is the change in the total momentum of the two cars from before the collision to after the collision? One car weighs 1,000 kg and the other car weighs 1,500 kg. Both are traveling at 10 m/s.

• 0 kg m/s

• 50 kg m/s

• 250 kg m/s

• 5000 kg m/s

• 25000 kg m/s

Tags

NGSS.HS-PS2-2

A 90 kg man is standing at rest on frictionless ice. His friend throws a 10 kg ball at him with a horizontal velocity of 20 m/s. After catching the ball, what is the man's velocity?

• 0 m/s

• 1.8 m/s

• 2 m/s

• 4.5 m/s

• 20 m/s

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-2

If a × b = c × d, solve for c/a.             

• b/d

• b x d

• d x b

• d/b

• 1

How can the linear momentum of something be increased?

• increase its mass

• increase its velocity

• apply a net force to it

• a & b

• a, b, & c

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-2

If a truck has a linear momentum of 10,000 kg × m/s, and it is moving at 5 m/s, what is its mass?

• 2000 kg

• 2000 N

• 20000 N

• 2000 kg

• 50,000 kg

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-2

 

If a large truck is driving down the road and collides with an insect, which of these statements is true?

• The truck applies more force to the insect than the insect applies to the truck.

• The insect's momentum changes more than the truck's.

• The insect accelerates more than the truck.

• The insect applies a greater impulse to the truck than the truck to the insect.

• All of the above

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-2