Review: Collisions & Concussions

The momentum of an object depends upon the object's ___________&_____________.

• size and shape

• mass and inertia

• mass and veloctiy

• mass and energy

Tags

NGSS.HS-PS2-2

Most modern vehicles have padded dashboards. This reduces collision injuries by...

• reducing the driver's change in momentum

• increasing the driver's change in momentum

• increasing the force of impact

• increasing the time of impact

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-3

The equation to calculate momentum is

• p=mv
• p=1/2mv²
• p=mgh
• p=mg

Tags

NGSS.HS-PS2-2

According to Newton's Laws, for every action there is an ....

• equal and opposite reaction.

• equal and parallel reaction.

• unequal and opposite reaction.

• unequal and unrelated reaction.

Tags

NGSS.MS-PS2-1

If two objects collide or explode, they experience

• the same force for the same amount of time.

• different forces for the same amount of time.

• different forces for different amounts of time.

• the same force for different amounts of time.

Ball A bumps into ball B. Which is the same before and after the collision?

• the momentum of ball A

• the momentum of ball B

• the sum of the momentums

• the difference in the momentums

When finding the solution to an engineering problem, there is/are usually 

• only one possible correct solution
• a very limited number of possible correct solutions
• many possible correct solutions

What is the relationship between impact force and time? 

• a. There is no relationship between impact force and time
• b. The greater the amount of time it takes for an object to hit another surface the less the force
• c. The lesser the amount of time it takes for an object to hit another surface the greater the force

The unit of force is

• m/s
• m/s^2
• newton
• kg

What is the momentum of a 10 kg dog travelling at 2 m/s?

• 10 kg m/s

• 20 kg m/s

• 5 kg m/s

• None of These

Tags

NGSS.HS-PS2-2