Momentum and Elastic Collisions Quiz

What is the initial velocity of the first ball before the collision?

• 4 m/s

• -5 m/s

• 5 m/s

• 6 m/s

What is the initial velocity of the second ball before the collision?

• -5 m/s

• 4 m/s

• 6 m/s

• 5 m/s

What is the mass of the second ball involved in the collision?

• 7 kg

• 4 kg

• 5 kg

• 6 kg

What is the combined mass of the two balls involved in the collision?

• 11 kg

• 10 kg

• 9 kg

• 8 kg

Which equation is used to find the final velocity of the first mass?

• m1 + m2 = v1 + v2

• m1v1 + m2v2 = m1v1' + m2v2'

• v1' = (m1 - m2) / (m1 + m2) * v1

• v2' = (m2 - m1) / (m1 + m2) * v2

What is the significance of a perfectly elastic collision in this context?

• Total mass is conserved

• Total velocity is conserved

• Total momentum and kinetic energy are conserved

• Total force is conserved

What is the final velocity of the first mass after the collision?

• 7 m/s

• 3 m/s

• -3 m/s

• -7 m/s

In which direction does the first mass move after the collision?

• Up

• Left

• Down

• Right

What is the final velocity of the second mass after the collision?

• -7 m/s

• 3 m/s

• -3 m/s

• 7 m/s

What happens to the direction of the second mass after the collision?

• It reverses direction

• It moves upwards

• It continues in the same direction

• It stops