Talal Science 1

What is the main difference between thermal energy and heat?

• Thermal energy is the energy that is transferred, while heat is the total energy of particles.

• Thermal energy is the total kinetic and potential energy of particles, while heat is the energy transferred between objects at different temperatures.

• Thermal energy is only found in hot objects, while heat is found in all objects.

Which of the following statements about particles in an object is true?

• They are always motionless.

• They have both kinetic and potential energy.

• They only have kinetic energy when the object is hot.

What happens to the temperature of an ice pop when it is held in sunlight?

• The temperature decreases because it loses thermal energy.

• The temperature increases as the particles gain kinetic energy.

• The temperature remains the same because the ice pop is cold.

What is the SI unit of energy?

• Watt

• Joule

• Celsius

When does heat transfer stop between two objects?

• When one object is warmer than the other.

• When the two objects reach the same temperature.

• When the objects are no longer touching each other.

What does temperature measure?

• The total mass of a substance

• The average kinetic energy of the particles in a substance

• The volume of a substance

Which scale uses the freezing point of water as 0 degrees?

• Fahrenheit

• Celsius

• Kelvin

What is the SI unit of temperature?

• Celsius

• Fahrenheit

• Kelvin

At absolute zero (0 K), what happens to particles?

• They move extremely fast

• They have no kinetic energy and are motionless

• They are at their highest energy state

If the temperature in Kelvin is 273 K, what is the temperature in degrees Celsius?

• 0°C

• 100°C

• -273°C