Physics Unit 3 Momentium

Question 1

Write the equation for momentum:

Answer 1

p=mv

Question 2

compare and contrast momentum and inertia:

Answer 2

momentum is mass times velocity, hence it can be calculated, inertia is resistance to change motion and has no equation

Question 3

state the definition of impulse:

Answer 3

change in momentum (🔼p)

Question 4

write the equation for impulse:

Answer 4

🔼p = mvf-mvi or 🔼p = f🔼t

Question 5

what does it mean if a quantity is conserved?

Answer 5

the initial quantity must equal the final quantity, it remains the same (ex: it stays in the system and is not lost due to friction, heat etc.)

Question 6

Is momentum conserved? Explain:

Answer 6

Yes, no matter how the objects might be moving it is always conserved

Question 7

compare and contrast elastic and inelastic collisions.

Answer 7

Elastic = separate after collision, Inelastic = together after collision

Question 8

State the definition of momentum:

Answer 8

Inertia in motion