Exp 1 Temperature and Kinetic Energy Quiz Retake Review

What is kinetic energy?

• Kinetic energy is the energy particles have when they are not moving.

• Kinetic energy is the energy of moving particles that contributes to thermal energy.

• Kinetic energy is the energy of particles that causes them to become larger in size.

• Kinetic energy is the energy particles have when they lose thermal energy.

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How does the mass of a particle affect its speed at the same temperature as another particle?

• more massive particles move faster

• less massive particles move faster

• particles with larger mass and volume move faster

• both particles move at the same speed regardless of mass

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If you have two substances at the same temperature, one with heavier particles than the other, which particles are likely to move faster, and why?

• The heavier particles, because they have more kinetic energy

• The lighter particles, because they need less energy to move fast

• Both particles move at the same speed

• The heavier particles, because they are at a higher temperature

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What does kinetic energy measure in particles?

• the amount of space particles take up

• the movement speed of particles

• the shape of the particles

• the temperature difference between particles

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If two samples have particles with different kinetic energies, what does this difference tell you about the samples' temperatures?

• The sample with higher kinetic energy has a higher temperature

• The sample with lower kinetic energy has a higher temperature

• Both samples have the same temperature

• Temperature is unrelated to kinetic energy

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Imagine Sample X and Sample Y both contain the same substance. The particles in Sample X are moving faster than those in Sample Y. What does this imply about the temperature of Sample X?

• Sample X has a lower temperature than Sample Y

• Sample X and Y have the same temperature

• Sample X has a higher temperature than Sample Y

• The temperatures cannot be compared

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What effect does an increase in temperature have on the kinetic energy of particles in a solid?

• It decreases kinetic energy, causing particles to contract

• It increases kinetic energy, causing particles to move further apart

• It has no effect on kinetic energy

• It makes each particle smaller

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Why do materials expand when heated?

• The particles gain energy and move closer together

• The particles gain energy and move further apart

• The particles lose energy and shrink in size

• The particles lose energy and slow down

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A metal ball is heated, and its size increases. What best explains this change?

• The particles in the ball gain kinetic energy and spread apart

• The particles shrink in size, causing the ball to expand

• Heat is added to the particles, making them larger

• The particles lose kinetic energy, making the ball expand

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What is the relationship between temperature and kinetic energy in gas particles?

• Higher temperature means higher kinetic energy

• Higher temperature means lower kinetic energy

• Temperature and kinetic energy are not related in gases

• Only solid particles have kinetic energy changes with temperature

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