Kinetic Energy and Momentum

A collision where two objects bounce and move separately while kinetic energy is conserved is

• perfectly inelastic

• elastic

• inelastic

• nonexistent

Tags

112.45.c.7.E

The only collision in which kinetic energy is conserved is

• perfectly inelastic

• elastic

• inelastic

• nonexistent

Tags

112.45.c.7.E

In which collision is momentum conserved?

• perfectly inelastic

• elastic

• inelastic

• all collisions

Tags

112.45.c.7.E

Conservation of momentum means that the initial and final momentum in a collision are

• different

• the same/equal

• impossible to determine

• always the same as the kinetic energy

Tags

112.45.c.7.E

Collisions where objects BOUNCE apart.

• inelastic collisions

• elastic collisions

• explosions

• none of these

Tags

NGSS.HS-PS2-2

In what type of collisions, both momentum, and total kinetic energy is conserved?

• Elastic, Inelastic and Perfectly Inelastic Collisions

• Perfectly Inelastic Collisions

• Elastic Collisions

• Inelastic Collisions

Tags

NGSS.HS-PS2-2

What happens to the total momentum in a perfectly inelastic collision?

• It increases

• It decreases

• It remains the same

• It becomes zero

Tags

NGSS.HS-PS2-2

Kinetic energy is conserved __________ collisions.

• only in elastic

• only in inelastic

• in all

• never during

In a two-body collision,

• momentum is always conserved

• kinetic energy is always conserved

• neither momentum nor kinetic energy is conserved

• both momentum and kinetic energy are always conserved

Tags

NGSS.HS-PS2-2

Which of the following equations represents the kinetic energy of an object?

Tags

NGSS.HS-PS3-2