Introduction to Energy quiz Flashcards

Kinetic energy is associated with the motion and movement of molecules.

Glucose molecules store potential energy.

A hockey puck sliding across the ice is considered kinetic energy because it is in motion.

Kinetic energy is the energy of motion, while potential energy is stored energy.

c) Glucose molecules being broken down is not a form of kinetic energy; it is potential energy.

A biological system must contain living things and allow energy and mass to enter and exit.

The universe is not considered a biological system because the amount of energy and mass is constant and does not exchange with its surroundings.

A human eating a cheeseburger is an example of a biological system because it involves a living being taking in energy and mass.

A coral reef qualifies as a biological system because it contains living organisms and allows energy and mass to enter and exit.

The digestive system absorbs food energy and discards food waste, transferring mass and energy to and from the environment.

Energy and mass exchange is crucial because it allows the system to interact with its environment, which is a key characteristic of biological systems.

The temperature rise in a substance is considered kinetic energy because it causes the molecules to move faster.

When air molecules vibrate to transmit sound waves, it involves kinetic energy.

Kinetic energy is directly related to the movement of molecules in a substance; as kinetic energy increases, molecular movement increases.

Glucose molecules store potential energy that can be later used to perform cellular work.

Any substance that is moving or in motion is exhibiting kinetic energy. For example, a biker coasting down a hill or muscle contractions.

All cellular activities in living organisms use chemical potential energy stored in molecules like glucose as a source of energy.

Energy can be divided into potential energy (stored energy, such as gravitational potential energy and chemical potential energy) and kinetic energy (energy of motion, such as a moving biker or muscle contractions). Biological systems can exchange energy and mass with their surroundings, as seen in processes like photosynthesis.

Potential energy is stored energy that has the potential to cause change, while kinetic energy is the energy of motion.

An example that does not involve energy transformation would be a stationary object that remains stationary, as no energy is being converted or transferred.

Organisms get the energy they need by converting chemical potential energy stored in molecules like glucose into usable forms of energy through metabolic processes.

Endergonic reactions absorb energy from their surroundings, resulting in products that have higher energy than the reactants.

Living cells use chemical potential energy stored in molecules like glucose as their main source of energy.

A daylong hike lasting 6 to 7 hours primarily uses chemical potential energy stored in molecules like glucose.