Collisions in Two Dimensions

Which of the following statements best describes an elastic collision?

• The total kinetic energy is conserved, but momentum is not.

• Both momentum and total kinetic energy are conserved.

• Momentum is conserved, but total kinetic energy is not.

• Neither momentum nor total kinetic energy is conserved.

Tags

NGSS.HS-PS2-2

In an inelastic collision, which of the following is true about the kinetic energy of the system?

• The total kinetic energy is always conserved.

• The total kinetic energy is partially converted into other forms of energy.

• The total kinetic energy increases.

• The total kinetic energy is completely lost.

Tags

NGSS.HS-PS2-2

A 2 kg object moving at 3 m/s collides elastically with a 1 kg object at rest. What is the velocity of the 1 kg object after the collision?

• 1 m/s

• 2 m/s

• 3 m/s

• 4 m/s

Tags

NGSS.HS-PS2-2

Which of the following techniques is commonly used to analyze collisions in two dimensions?

• Vector decomposition

• Scalar multiplication

• Matrix inversion

• Differential calculus

Tags

NGSS.HS-PS2-2

NGSS.HS-PS2-3

Tags

NGSS.HS-PS2-2