Question

The __ mass a particle has and the __ the particle's speed, the more kinetic energy the particle has.

Answer 1

more, higher

If two particles have the same mass but different speeds, the one with the higher speed has more kinetic energy. If two particles have different masses but the same speed, the particle with more mass has more kinetic energy.

So, the more mass a particle has and the higher the particle's speed, the more kinetic energy the particle has.

Answer 2

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The more mass a particle has and the higher the particle's speed , the more kinetic Energy the particle has.

The reason for that is ~

Mass and Velocity are in proportional relationship with kinetic Energy.