Test Lab #4 Kinetic Energy2024

Front

What happens to particles when heat energy is removed from a substance?

Back

The particles lose kinetic energy.

Front

What causes thermal contraction in substances?

Back

The particles get slower.

Front

In which state of matter can particles slide by each other but are still held together?

Back

Liquid.

Front

What causes thermal expansion in substances?

Back

The particles move faster.

Front

What happens to temperature when the speed of air particles increases?

Back

Temperature increases.

Front

Define kinetic energy.

Back

Kinetic energy is the energy an object has due to its motion.

Front

What is thermal energy?

Back

Thermal energy is the total energy of all the particles in a substance.

Front

How does temperature relate to the kinetic energy of particles?

Back

Temperature is a measure of the average kinetic energy of the particles in a substance.

Front

What is the difference between solids, liquids, and gases in terms of particle movement?

Back

In solids, particles vibrate in place; in liquids, they slide past each other; in gases, they move freely and rapidly.

Front

What is thermal equilibrium?

Back

Thermal equilibrium is the state in which two objects in contact do not exchange heat energy.