COLLISION

Was momentum conserved with the elastic collisions?

• Yes!

• NO

Tags

NGSS.HS-PS2-2

Was momentum conserved with the inelastic collisions?

• Yes!

• NO

Tags

NGSS.HS-PS2-2

The law of conservation of momentum states that, 

• p before is less than p after
• p before is the same as p after
• p before is more than p after

Tags

NGSS.HS-PS2-2

A 2.5 kg ball moving at 4.2 m/s collides with a 2.5 kg stationary ball. If the first ball is at rest after the collision, what is the velocity of the second ball? 

• 2.1 m/s
• 2.5 m/s
• 4.2 m/s
• 8.4 m/s

Tags

NGSS.HS-PS2-2

What is an inelastic collision?

• When two objects collide, becoming stuck together

• When two objects collide, they do not come stuck together.

• When two objects don't collide, becoming stuck together and internal kinetic energy is lost (but not really lost, it transfers to different forms of energy)

Tags

NGSS.HS-PS2-3

What is the equation for momementum?

Tags

NGSS.HS-PS2-2

NGSS.HS-PS2-3

2 balls collide and bounce off of each other. During the collision total momentum remained constant and total kinetic energy remained constant. What type of collision is this?

• Inelastic Collision

• Elastic Collision

Tags

NGSS.HS-PS2-2

If a collision is elastic which of the following must be true?

• Momentum is not conserved

• The objects are in an open system

• The total momentum is equal to 0

• Momentum is conserved

Tags

NGSS.HS-PS2-2

. 

A collision occurs when ...

• two or more objects hit each other with a force.

• an object in motion stays in motion.

• when an object at rest stays at rest.

• NOT HERE

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-3

Select all the examples of collisions.

• car at a top light

• baseball bat hitting a baseball

• a car running at a fast speed

• all

Tags

NGSS.HS-PS2-2

NGSS.HS-PS2-3