Energy Review

Energy Review

What is Energy, Types of Energy, and Energy Transformations

What is Energy?

• Energy is the ability to do work.

• Work is done when a force causes an object to move.

Types of Energy

• There are several types of energy. The 2 main categories of energy are Potential and Kinetic.

• Potential Energy is stored energy.

• Kinetic Energy is energy of motion.

Other Energy Types

• Sound- energy produced by vibrating sound waves

• Mechanical - energy caused by objects moving

• Chemical- energy stored in the bonds of atoms and molecules

• Radiant- light or electromagnetic energy that travels in the form of waves

• Electrical- energy from the movement of electrons

• Gravitational- energy stored in an object because of where it is placed

Other Energy Types

• Thermal- caused by the movement of atoms and molecules. Heat energy

• Nuclear Energy- energy holding together the nucleus of an atom.

• Chemical- stored in the bonds of atoms and molecules. Energy is released when the bonds are broken.

• Elastic- found in objects that bounce back to their regular shape when stretched or squished.

Law of Conservation of Energy

• Energy can neither be created or destroyed it can only change its form.

Energy Transformations

• Energy can change from one form to another.

• For example, a hair dryer changes electrical energy into heat and sound energy.

Multiple Choice

Energy...

• is the ability to do work or cause a change

• is all the movement in the universe

• cannot be created or destroyed

• all of the above

Multiple Choice

Energy is the ability to do ___________.

• Nothing

• Work

• Energy

• Change

Multiple Choice

Energy can be classified into these two categories.

• Potential and kinetic

• Gravitational and elastic

• Light and sound

• Kinetic and movement

Multiple Choice

The Law of Conservation of Energy states that...

• energy can be destroyed

• energy can not be created or destroyed

• energy can only be destroyed using the force

Multiple Choice

The glow sticks produce light for a short amount of time. The light from the glow stick is a conversion from what to what?

• thermal to light

• gravitational to potential

• radiant to electrical

• chemical to light

Multiple Choice

On a roller coaster, where is maximum kinetic energy?

• At the bottom of a big hill

• When going around a corner

• When going upside down

• At the top of a big hill

Multiple Choice

On a roller coaster, where is maximum potential energy?

• At the bottom of a big hill
• When going around a corner
• When going upside down
• At the top of a big hill

Multiple Choice

When you eat pizza, Chemical Energy is transferred to _____ Energy.

• Solar

• Electrical

• Mechanical

• Chemical

Multiple Choice

Which energy conversion is taking place when you put gasoline in a car?

• thermal -> electrical

• mechanical -> electrical

• chemical -> mechanical

• mechanical -> electromagnetic

Multiple Choice

Which skier will have a greater potential energy?

• Skier 1

• Skier 2

Multiple Choice

The sun’s energy used by green plants to produce food is an example of light energy being converted to what other form of energy?

• kinetic energy

• heat energy

• mechanical energy

• chemical

Multiple Choice

Mrs. Easler's students are complaining that it is hot in the classroom. She plugs in the fan and turns it on, which energy transformation occurs?

• mechanical to electrical

• electrical to mechanical

• chemical to mechanical

• electromagnetic to mechanical

Multiple Choice

An energy transformation is when...

• energy turns into a robot

• energy changes from one form to another

• energy is created

• energy is used up

Multiple Choice

A student uses a heat lamp in a terrarium to create a warm environment for her pet lizard. What types of energy are present when the heat lamp is on?

• light, sound, mechanical

• electrical, light, thermal

• sound, thermal, electrical

• thermal, light, sound

Multiple Choice

4. The energy of charged particles flowing in an electric circuit is called:

• chemical energy
• mechanical energy
• electrical energy
• thermal energy

Multiple Choice

Energy caused by the movement in the particles of matter. It is a form of kinetic energy that results in heat

• Nuclear energy

• Sound energy

• Light energy

• Thermal energy

Multiple Choice

Energy that comes from the nucleus of an atom. A form of potential energy.

• chemical energy
• Nuclear energy
• Sound energy
• Electrical energy

Multiple Choice

Energy that is stored in bonds between atoms is:

• Mechanical energy
• Chemical energy
• Kinetic energy
• Nuclear energy

Multiple Choice

What kind of energy is represented in the picture?

• Thermal
• Chemical
• Sound
• Nuclear

Multiple Choice

What kind of energy does this device use?

• Chemical
• Electrical
• Thermal
• Chemical

Multiple Choice

What kind of energy is represented in this picture?

• Thermal
• Potential
• Nuclear
• Mechanical

Multiple Choice

What type of energy is the girl storing in the bow?

• Light Energy

• Elastic Potential Energy

• Chemical Potential Energy

• Thermal Energy

Multiple Choice

Which type of energy is increased when an object is raised above the ground?

• Gravitational potential

• Elastic potential

• Kinetic

• Heat

Multiple Choice

What type of energy is stored inside a battery?

• elastic potential energy

• gravitational potential energy

• chemical potential energy

• kinetic energy

Multiple Choice

Which is an example of potential energy?

• A car sitting at the top of a hill

• A kite flying in the air

• A fox chasing a mouse

• A bowling ball rolling

Multiple Choice

Which is an example of kinetic energy?

• A book sitting on a shelf

• A marble rolling down a ramp

• A parked car

• An elastic band

Multiple Choice

What is potential energy?

• Thermal energy
• Nuclear energy
• Energy in motion
• Stored energy

Multiple Choice

What is kinetic energy?

• Thermal energy

• Nuclear energy

• Energy in motion

• Stored energy

Multiple Choice

Identify the main type of energy

• Sound
• Nuclear
• Mechanical (Kinetic)
• Radiant

Multiple Choice

Electrical -> Mechanical -> Sound 

• A triple beam balance measuring an object’s mass
• A pencil sharpener plugged into a wall outlet
• A projector displaying a diagram on the screen
• A working flashlight used to light up a dark corner