What is the product of mass and velocity known as?

• Energy

• Power

• Force

• Momentum

Tags

NGSS.HS-PS2-2

Which symbol is used to represent momentum?

• Upper-case P

• Lower-case p

• Greek letter rho

• Upper-case J

Tags

NGSS.HS-PS2-2

In which type of collision do objects stick together and move as one after the collision?

• Perfectly inelastic collision

• Elastic collision

• Inelastic collision

• Explosive collision

Tags

NGSS.HS-PS2-2

What is conserved in all types of collisions?

• Kinetic energy

• Mass

• Potential energy

• Momentum

Tags

NGSS.HS-PS2-2

How is Newton's Second Law restated in terms of momentum?

• Net force equals change in velocity over change in time

• Net force equals change in momentum over change in time

• Net force equals mass times velocity

• Net force equals mass times acceleration

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-2

What does impulse equal to?

• Change in mass

• Change in momentum

• Change in force

• Change in velocity

Tags

NGSS.HS-PS2-2

What does the impulse approximation state?

• The change in momentum is negligible

• The force of impact is much larger than other forces during a collision

• The change in time is always zero

• The net force is always constant

Tags

NGSS.HS-PS2-2

NGSS.HS-PS2-3

How does an airbag help during a collision?

• It changes the speed of your body

• It decreases the change in time to increase the force of impact

• It changes the mass of your body

• It increases the change in time to decrease the force of impact

Tags

NGSS.HS-PS2-3

What are the dimensions of impulse?

• Newtons times seconds

• Kilograms times meters per second

• Both A and B

• None of the above

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-2

What is the symbol typically used for impulse?

• Lower-case j

• Upper-case P

• Lower-case p

• Upper-case J