Energy...its ELECTRIFYING!!!

5.6B If you were building a circuit, why would you use copper and not rubber to send electricity through the circuit?

• Copper is a better insulator. 
• Rubber is a better conductor.
• Copper is an insulator, but rubber is a conductor. 
• Copper is a conductor, but rubber is an insulator. 

5.6B Turning on a bulb in a lamp demonstrates that electrical energy can be used to produce which of the following?

• light and heat energy
• light energy and resistance
• light energy and an open circuit
• light and mechanical energy

5.6B Which of the following forms of matter has the ability to conduct electrical energy?

• wood

• plastic

• ceramic

• copper

5.6A Suppose you are listening to a musician using energy to play a song on his trumpet. What forms of energy is he using? 

• electrical energy and sound energy
• mechanical energy and sound energy
• chemical energy and thermal energy
• thermal energy and mechanical energy

5.6A Landon has been exploring the uses of sound energy. He has discovered that scientists use sound-energy technology to make images of underwater objects. What is this technology called?

• ultrasound
• sound insulation
• sonar
• amplification

5.6C The colors of a rainbow demonstrate which aspect of light? 

• reflection
• refraction
• diffraction
• translucence

5.6C You see yourself when you look in the mirror? What does this demonstrate about light? 

• that light is translucent
• that light can be refracted
• that light can be reflected
• that light cannot change direction

5.6C Which object is used in cameras, DVD players, telescopes, and microscopes to refract light?

• lens
• lamp
• laser
• mirror

5.6C If you were observing light shining on a rough piece of granite, which term would you accurately use to describe how it reacts to light?

• opaque
• reflected
• transparent
• transluscent

Students are asked to create a system using two mirrors and a flashlight to hit a target with a beam of light. Which diagram correctly uses the two mirrors and the flashlight to hit the target?

• A
• B
• C
• D