The body’s main energy source should come from what essential nutrient? (1 point) Responses protein protein fat fat carbohydrate carbohydrate minerals

The body's main energy source should come from carbohydrates.

The essential nutrient that serves are the main building blocks for the body is (1 point) Responses protein. protein. fat. fat. carbohydrates. carbohydrates. vitamins.

The essential nutrient that serves as the main building blocks for the body is protein.

Your body uses the nutrients from fiber to keep your digestive track healthy. (1 point) Responses true true false

False. Fiber is not used as a nutrient for energy; instead, it helps maintain a healthy digestive tract by promoting regular bowel movements and supporting gut health.

Which option is a measure of the average kinetic energy of the particles in a substance?(1 point) Responses phase phase heat heat thermal energy thermal energy temperature

The correct option is temperature. Temperature is a measure of the average kinetic energy of the particles in a substance.

A blacksmith strikes a piece of metal with a hammer repeatedly. The metal slowly begins to glow as the temperature increases, and the metal becomes more malleable. Which changes on a microscopic level led to the visible changes in the properties of the metal? (1 point) Responses The individual temperature of the particles increased. The individual temperature of the particles increased. The kinetic energy of the particles decreased. The kinetic energy of the particles decreased. The potential energy of the particles decreased. The potential energy of the particles decreased. The average speed of the particles increased.

The visible changes in the properties of the metal are due to the average speed of the particles increased. As the metal is struck and the temperature rises, the kinetic energy of the particles increases, leading to a rise in their average speed, which in turn makes the metal more malleable.

Which statement best describes heat?(1 point) Responses Heat flows from cold to hot and is a form of thermal energy. Heat flows from cold to hot and is a form of thermal energy. Heat flows from hot to cold and is the transfer of thermal energy. Heat flows from hot to cold and is the transfer of thermal energy. Heat flows from cold to hot and is the transfer of thermal energy. Heat flows from cold to hot and is the transfer of thermal energy. Heat flows from hot to cold and is a form of thermal energy.

The correct statement is: Heat flows from hot to cold and is the transfer of thermal energy.