G.9-Nafes-Thermal Energy

What is the main difference between thermal energy and temperature?

• Thermal energy measures the average kinetic energy, while temperature is the total energy of all particles.

• Temperature measures the average kinetic energy, while thermal energy is the total energy of all particles.

• Both thermal energy and temperature are the same.

• Thermal energy only depends on temperature.

Why does an iceberg have more thermal energy than a hot cup of coffee?

• Because the iceberg is hotter than coffee.

• Because the iceberg contains more mass, so the total energy of its particles is higher.

• Because the iceberg has a lower specific heat capacity.

• Because temperature and thermal energy are identical.

Which of the following statements is true?

• An object with a higher temperature always has more thermal energy.

• A small cup of boiling water has more thermal energy than an entire lake.

• Thermal energy depends on mass, temperature, and the type of substance.

• Temperature and thermal energy are unrelated.

Temperature is a measure of:

• The total kinetic and potential energy of all particles in an object.

• The total amount of heat in a substance.

• The average kinetic energy of the particles in a substance.

• The energy required to change the state of matter.

If two objects have the same temperature, what factor determines which one has more thermal energy?

• The amount of matter (mass) in the object.

• The type of thermometer used to measure the temperature.

• The object's shape.

• The object's ability to reflect heat.

Which of the following correctly explains why metals feel colder than wood at the same temperature?

• Metals absorb less heat from the environment.

• Metals conduct heat away from your skin faster than wood, making them feel colder.

• Wood has a higher temperature than metal.

• Wood and metal transfer heat at the same rate.

What happens to the motion of particles in a substance when its temperature increases?

• The particles move slower.

• The particles move faster.

• The particles stop moving.

• The number of particles decreases.

Which of the following best describes how thermal energy transfers between objects?

• Heat moves from a cooler object to a warmer object.

• Heat moves from a warmer object to a cooler object.

• Heat moves in both directions equally.

• Heat does not move between objects.

What is the correct unit for measuring temperature in the SI system?

• Fahrenheit (°F)

• Celsius (°C)

• Kelvin (K)

• Joules (J)

If the temperature of a substance increases, what happens to its thermal energy?

• Thermal energy decreases.

• Thermal energy stays the same.

• Thermal energy increases.

• Thermal energy disappears.