Energy Transformations

Kinetic Energy

A box moving along a conveyer belt

Gravitational potential energy

A piece of fruit hanging from a tree.

When Anna eats an apple, the sugars in that apple are broken down into the substance called glucose. Glucose is then burned in her body for energy. One of the body parts that needs this energy is the heart, which beats due to electrical impulses. A byproduct of this glucose breakdown is the heat that warms her body and is later released. Which identifies the energy transformations that take place in Anna's body as this process takes place? Mechanical energy is converted to kinetic energy, which is then converted to potential energy. Chemical energy is converted to thermal energy and electrical energy. Electrical energy is converted to chemical energy and thermal energy. Mechanical energy is converted to potential energy which is then converted to kinetic energy.

Chemical energy is converted to thermal energy and electrical energy.

The human body stores chemical energy from digested food. Some of the chemical energy is converted into mechanical energy when the body moves. Which statement is bestsupported by this information? The body does not convert chemical energy to thermal energy. The body does not convert chemical energy to kinetic energy. Digested food is a source of potential energy. Digested food is a form of radiant energy.

Digested food is a source of potential energy.

During nuclear fission and fusion, matter that seems to disappear is actually converted into:

Energy

Almost all energy on Earth comes from the:

Sun

What is the original source of energy for gasoline? plants Sun petroleum fossil fuels

Sun

What kind of energy involves the flow of positive charges? thermal radiant electrical nuclear

electrical

What is nuclear energy? energy from solar panels energy locked in the nucleus of an atom energy of moving electrons energy that travels in waves

energy locked in the nucleus of an atom

What are the two main types of energy? potential and electrical radiant and kinetic electrical and thermal kinetic and potential

kinetic and potential

What are the two main types of energy? radiant and chemical thermal and radiant potential and chemical kinetic and potential

kinetic and potential

The process of generating electricity from dams and nuclear power plants is very different, but some of the energy transformations are the same. Which energy transformations occur in both dams and nuclear power plants? Check all that apply. kinetic energy to mechanical energy nuclear energy to thermal energy mechanical energy to electrical energy thermal energy to electrical energy

kinetic energy to mechanical energy mechanical energy to electrical energy

What is the energy of an object because of its potential and kinetic energies? chemical energy electrical energy nuclear energy mechanical energy

mechanical energy

Atoms contain subatomic particles called protons and neutrons. When these protons and neutrons split, a lot of energy is released. What kind of energy is this? nuclear radiant thermal chemical

nuclear

The sun emits electromagnetic waves at many frequencies, but mostly in the infrared, visible, and ultraviolet spectrums. What kind of energy is this? nuclear radiant thermal chemical

radiant

What is one energy transformation that is taking place in the photo? radiant energy to thermal energy thermal energy to nuclear energy chemical energy to thermal energy radiant energy to chemical energy

radiant energy to chemical energy

Plants are responsible for a very important energy transformation, as shown. Which energy transformation does the picture best illustrate? radiant to chemical nuclear to mechanical chemical to thermal mechanical to chemical

radiant to chemical

When Javier touches a hot mug of tea, energy is transferred from the surface of the mug to his hand. What kind of energy is this? nuclear radiant thermal chemical

thermal

When a person strikes and lights a match, potential energy in the match is transformed into which types of energy? electrical and thermal thermal and radiant radiant and nuclear nuclear and kinetic

thermal and radiant

Thermal energy

Sand on the beach feels warm to the touch

Electrical energy

Lightning produced during a storm.

Radiant Energy

Radio waves transmitted from a tower

Taro stated that when someone hits a golf ball with a club, the amount of energy the ball has changes, the amount of energy that the club has changes, and the total energy of the system that includes the ball and the club increases. Which best explains Taro's error? The amount of energy that the ball has does not change. The amount of energy that the club has does not change. The total energy of the system remains the same. The total energy of the system decreases.

The total energy of the system remains the same.

Which statement is an example of the law of conservation of energy? A soccer ball eventually stops because its energy disappears. When a light bulb is turned on, electrical energy is converted to light and heat. An automobile engine burns gasoline to converts its chemical energy to electrical energy.

When a light bulb is turned on, electrical energy is converted to light and heat.

Which activity directly converts energy from the Sun into chemical energy? a snake lying on a sunny rock to keep warm a rabbit using energy from food it has eaten to run a bean plant making its own food to grow a person burning firewood to cook food

a bean plant making its own food to grow

What energy transformation is taking place in the photo? radiant energy to thermal energy thermal energy to nuclear energy chemical energy to thermal energy

chemical energy to thermal energy