п»їPhysics G

Product 6 вЂ“ Momentum

Internet Lab вЂ“ Momentum and Collisions

Name:

Date:

Period:

Site: http://phet.colorado.edu/

Play with the Sims пѓ Physicsпѓ Motion пѓ Collision Laboratory

Introduction:

When objects move, they may have momentum. Impetus, p, may be the product of an object's mass (kg) as well as its velocity (m/s). The unit to get momentum, l, is kgВ·m/s. During a accident objects copy momentum to one another, resulting in different motions than before the crash. In this activity you will examine the movement colliding items.

ELASTIC Crashes

1 . What defines a collision to be elastic?

2 . Simulate the four elastic collisions below. Complete the table using math formulations and the ruse.

BEFORE ACCIDENT

ptotal

AFTER COLLISION

#

m1

m2

v1

v2

v1

v2

1

2 . 0 kg

2 . zero kg

1 ) 5 m/s

0 kgВ·m/s

2

2 . 5 kilogram

5. 0 kg

-1. 0 m/s

0 kgВ·m/s

3

a few. 0 kilogram

6. 0 kg

installment payments on your 0 m/s

0. zero m/s

four

6. 0 kg

installment payments on your 0 m/s

-1. zero m/s

8. 0 kgВ·m/s

3. Two objects together with the same mass move toward each other together with the same speed and encounter an flexible collision. Compare the final velocities of each target to their first velocities.

four. A less-massive moving thing has an elastic collision with a more-massive object that is not going. Compare the initial velocity (speed and direction) of the less-massive object to its last velocity.

INELASTIC Collisions

a few. What defines a collision as being inelastic?

6. Simulate the four inelastic crashes below. Full the table using math formulas as well as the simulation.

BEFORE COLLISION

ptotal

AFTER COLLISION

#

m1

m2

v1

a huge selection of

v1 and v2

1

2 . zero kg

2 . 0 kg

1 . 5 m/s

zero

2

a few. 0 kg

6. zero kg

1 . 5 m/s

-0. 75 m/s

3

1 . your five kg

your five. 0 kilogram

2 . 0 m/s

zero. 2 m/s

4

15. 0 kg

2 . zero m/s

-1. 0 m/s

10. 0 kgВ·m/s

7. Two things moving toward each other with different momentums knowledge an inelastic collision. Through which direction...