Unit 2 Energy Test

A person who uses science knowledge to design something in order to solve a problem:

• a farmer
• an engineer
• a teacher

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

• electrical to mechanical
• chemical to heat
• electrical to sound

EXTRA POINTS: Sun (Solar), Wind, and Fuel are all examples of:

• Designs
• Changes
• Energy Sources

How does an ELECTRICAL device get power?

• an argument
• science
• electrical energy

EXTRA POINTS: A ________________ is a group of parts that work together? (Example: A Bike)

• Evidence
• System
• Energy

What does Transfer mean?

• a universal truth
• to move from one object to another or one place to another
• a chemical reaction

What is the energy conversion when you burn wood for a fire?

• chemical to electrical
• chemical to thermal
• light to motion

What is an Electrical Device?

• a cat
• there is no such thing
• a machine that converts electrical energy to another form of energy

What is the energy conversion when you plug in a fan?

• electrical to motion
• thermal to sound
• thermal to electrical

What is Energy?

• the ability to make things move or change
• there is no such thing
• your favorite movie