Energy Conversions and Energy Transfer

Energy Conversion

by Matt Toktosun

​Energy Conversion

​Energy cannot be created or destroyed. It can only be converted from one form into another. This is known as energy conversion.

​Some of the chemical potential energy in the food we eat is converted into heat energy and kinetic energy. The heat energy keeps us warm, kinetic energy allows us to play and exercise. 

​Energy Conversion

The transformation of one form of energy into another form.

​

Examples:

(a) The chemical energy in the battery is converted into electrical energy in the electrical circuit.

(b)The girl converts gravitational potential energy into kinetic energy when she is sliding down.

Multiple Choice

What type of energy is in this picture?

• Kinetic
• Elastic Potential
• Chemical
• Gravitational Potential 

Multiple Choice

When plants convert the sun's energy into food, which type of energy is it?

• kinetic

• chemical

• heat

• electrical

Multiple Choice

What kind of energy is represented in this picture?

• Heat

• Potential

• Nuclear

• Electrical

Multiple Choice

What kind of energy is represented in the picture?

• Heat

• Chemical

• Sound

• Nuclear

Multiple Choice

A battery converts what type of energy to another?

• sound to kinetic

• light to heat

• kinetic to electrical

• chemical to electrical

Multiple Choice

Which letter has the most gravitational potential energy?

• H
• E
• M
• Y

Multiple Choice

This type of potential energy depends on an object's height and mass

• gravitational potential energy
• kinetic potential energy
• elastic potential energy
• nuclear potential energy

Multiple Choice

A device that converts electrical energy to light energy.

• A blender
• A light bulb
• A bicycle
• A balloon

Multiple Choice

The ability to do work.

• Energy
• Matter
• Weight
• Volume

Multiple Choice

What is an example of non-renewable energy?

• Coal

• Solar

• Wind

• Hydropower

Multiple Choice

At which point is Potential Energy at its max?

• W
• X
• Y
• Z

Multiple Choice

What form of energy is represented by a rock sitting at the top of a cliff?

• Electrical 
• Chemical 
• Elastic 
• Gravitational 

Multiple Choice

__________ energy is the energy due to motion.

• Kinetic 
• Potential 
• Neither 
• Both

Multiple Choice

What is the energy conversion when you have a skateboard at the top of the hill then move down?

• kinetic to potential

• potential to kinetic

• potential to thermal

• electrical to kinetic

Multiple Choice

What is the energy conversion when a wind turbine turns to provide energy to a power supply?

• electrical to potential

• potential to kinetic

• kinetic to electrical

• nuclear to heat

Multiple Choice

When a roller coaster stops, the energy is destroyed.

• True 
• False 

Multiple Choice

What are the two factors that affect (Gravitational) Potential Energy?

• Gravity and Time
• Distance and Force
• Mass and Height
• Power and Gravity

Multiple Choice

Name the Energy Conversion of a dryer.

• Chemical→ Thermal and Light

• Electrical → Elastic, Heat and Sound

• Gravitational → Nuclear, Sound and Heat

• Electrical → Heat, Kinetic and Sound

Multiple Choice

What is the energy conversion when you plug in a stereo and listen to music?

• electrical to mechanical

• chemical to heat

• electrical to sound

• potential to sound

Multiple Choice

What is the energy conversion when you put batteries in a flashlight to make it turn on?

• chemical to light

• light to kinetic

• chemical to thermal

• nuclear to light

Multiple Choice

What kind of energy is represented in the picture?

• Heat

• Chemical

• Sound

• Nuclear

Multiple Choice

A television converts electricity into

• light.

• sound.

• light and sound.

• light, sound, and heat.

Multiple Choice

What energy conversion is taking place in this picture?

• solar energy to thermal energy

• thermal energy to chemical energy

• chemical energy to thermal and light energy

Multiple Choice

What energy conversion is taking place in this picture?

• light energy to electrical energy

• electrical energy to light and thermal energy

• solar energy to light energy