Momentum & Impulse

Linear momentum is

• a scalar quantity

• a vector quantity

• unrelated to force

• not conserved

Tags

NGSS.HS-PS2-2

Impulse is equal to

Tags

NGSS.HS-PS2-2

The linear momentum of an object is conserved if

• the force acting on the object is conservative

• there's a single unbalanced internal force acting on the object

• the mechanical energy is conserved

• none of these

For an inelastic collision what is not conserved?

• Momentum

• Kinetic Energy

• Mass

• Both Momentum & Kinetic Energy

• Both Kinetic Energy & Mass

Tags

NGSS.HS-PS2-2

What is a term to indicate a perfectly elastic collision has occurred?

• Couple

• Rebound

• Stick

• Motion

What is a term to indicate a perfectly inelastic collision has occurred?

• Rebound

• Bounce Off

• Couple

• Motion

Tags

NGSS.HS-PS2-3

For a perfectly elastic collision, what is conserved?

• Momentum

• Kinetic Energy

• Mass

• Both Momentum & Kinetic Energy

• Both Kinetic Energy & Mass

The momentum of an object is doubled, by what factor does the kinetic energy change if the mass remains constant?

• 2

• 4

Tags

NGSS.HS-PS2-2

When two objects are both moving in a system, when summing the momentums it is important to pay attention to the

• direction of the velocity

• direction of the mass

• magnitude of the velocity

• magnitude of the mass

Tags

NGSS.HS-PS2-2

Wearing a safety helmet is an effective way to protect your head from injury. In order for the force to ___________ on impact, the time to bring your head to a stop must ____________. This is done through adding padding in the helmet.

• decrease; increase

• increase; decrease

• increase; increase

• decrease; decrease

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-3