Impulse has always changed:
Correct answer: B. Momentum
- A. Energy
- B. Momentum
- C. Velocity
- D. Acceleration
Explanation
Impulse is defined as the change in momentum of an object when a force is applied over a period of time. Therefore, impulse always results in a change in momentum. While energy, velocity, and acceleration can also be affected by forces, they do not directly represent the change caused by impulse. Energy is conserved in closed systems, velocity is a component of momentum, and acceleration is related to changes in velocity but not directly to impulse.
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About Force and Motion
Displacement, velocity and acceleration describe motion, including the horizontal and vertical components of projectile motion. The chapter connects these quantities with Newton's laws, momentum and impulse, then applies conservation of momentum to collisions, distinguishing elastic collisions from inelastic ones.
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