Motion Speed Velocity and Momentum

The rate at which velocity changes.

• speed

• inertia

• motion

• acceleration

Tags

NGSS.HS-PS2-1

A 50 kg ball rolls down the street at 5 m/s. Calculate the momentum of the ball. 

• 55 kg*m/s

• 100 kg*m/s

• 250 kg*m/s

• 500 kg*m/s

Tags

NGSS.HS-PS2-2

NGSS.HS-PS2-1

While playing pool, the white cue ball strikes the 8 ball. Before the collision, the cue ball's velocity was 10 m/s and the 8 ball was at rest. If both ball's have a mass of 0.15 kg and the cue ball's velocity after the collision is 2 m/s, what is the 8 ball's velocity?

• 2 m/s

• 8 m/s

• -2 m/s

• 1.5 m/s

Tags

NGSS.HS-PS2-2

If an object velocity is 0 m/s which of the is true.

• The object has momentum

• The object's momentum is changing

• The object has NO momentum

Tags

NGSS.HS-PS2-2

What object will have more momentum a 1000 kg truck moving 7 m/s or a 500 kg car moving 10 m/s

• Truck

• Car

Tags

NGSS.HS-PS2-2

Which of the following images has more momentum?

• Object A

• Object B 

• They are the same

Tags

NGSS.HS-PS2-2

In any collision (crash) the ______ is ALWAYS constant

• Total Momentum

• total speed

• total Velocity

• Energy

Tags

NGSS.HS-PS2-2

When two objects collide, the P_before is ____________ the P_after.

• more than 

• less than 

• equal to

• unrelated to

Tags

NGSS.HS-PS2-2

A 2.5 kg ball moving at 5 m/s collides with a 2.5 kg stationary ball in a perfectly elastic collision.  What is the velocity of the second ball after the collision? 

• 5 m/s

• 2.5 m/s

• 10 m/s

• 7.5 m/s

Tags

NGSS.HS-PS2-2

Momentum is represented with which letter?

• b

• m

• v

• p

Tags

NGSS.HS-PS2-2