Unit 5 - lesson 3 KE PE Wayground

Multiple Choice

What is the energy transformation that occurs in an electric pencil sharpener?

• mechanical energy to electrical and light energy

• electrical energy to mechanical and sound energy

• radiant energy to sound energy

• chemical energy to mechanical energy

Multiple Choice

Which object shows an energy transformation from electrical to mechanical?

Multiple Choice

When a car burns gasoline it creates hot air to move the pistons in the engine, which causes the car to move. What energy transformation occur from the fuel to the movement of a car?

• thermal energy to mechanical energy

• thermal energy to chemical energy to mechanical energy

• chemical energy to thermal energy to mechanical energy

• chemical energy to electrical energy

Multiple Choice

Which of the following energy transformations occur when a lamp that is plugged into a wall socket is functioning correctly?

• Chemical to light
• Electrical to chemical
• Electrical to light
• Chemical to electrical

Multiple Choice

A hairdryer converts -- 

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

Multiple Choice

Which items would have this energy transformation: electrical energy -> thermal energy and light energy?

• toaster
• candle burning
• windmill turning
• Iron for your clothes

Multiple Choice

Which items would have this energy transformation: mechanical energy -> sound energy?

• turning on a flashlight

• nuclear power plant

• wind turbine turning

• playing a violin

Multiple Choice

What type of energy transformation happens in hydro-electric power?

• kinetic to potential

• sound to mechanical

• chemical to electrical

• mechanical to electrical

Multiple Choice

What kind of energy is represented in the picture?

• Thermal
• Chemical
• Sound
• Nuclear

Multiple Choice

According to the Law of Conservation of Energy, energy  

• can be created but not destroyed

• can be both created and destroyed

• cannot be created or destroyed

• can be destroyed but not created

Hotspot

In which shelf would the books have the most gravitational potential energy?

Hotspot

Click on all images that show mechanical potential energy

Multiple Choice

Which type of Energy? Walking down the street

• Potential

• Kinetic

• Both

• Neither

Multiple Choice

Which type of Energy? An airplane cruising at a high altitude

• Potential

• Kinetic

• Both

• Neither

Multiple Choice

Which type of Energy? A cliff diver is at rest at the top of a tall cliff, making final preparations for his jump to the waters below.

• Potential

• Kinetic

• Both

• Neither

Multiple Choice

Which type of Energy? Archer with their bow drawn.

• Potential

• Kinetic

• Both

• Neither

Multiple Choice

Which type of Energy? A backpack is at rest on the classroom floor.

• Potential

• Kinetic

• Both

• Neither

Multiple Choice

Which type of Energy? A baseball thrown to second base

• Potential

• Kinetic

• Both

• Neither

Multiple Choice

Which type of Energy? A bowling ball sitting on the rack

• Potential

• Kinetic

• Both

• Neither

Multiple Choice

Which type of Energy? A bowling ball rolling down the alley

• Potential

• Kinetic

• Both

• Neither

Open Ended

How is mechanical kinetic energy different from mechanical potential energy?