1st Quarter Exam - Energy

Electric fields are often associated with what other kind of field?

• nuclear fields
• gravity fields
• magnetic fields
• particle fields

As energy transforms from one form to another, a bit of ______________ energy is also transferred.

• Mechanical
• Chemical
• Thermal
• Electrical

Analyze the picture and determine the method of heat transfer being shown.

• Radiation
• Conduction
• Classification
• Convection

An electromagnet requires what type of energy to work?

• mechanical
• electrical
• chemical
• A.  potential

What method of heat transfer occurs between objects that touch or are very close?

• Radiation
• Conduction
• Transpiration
• Convection

In a hydroelectric power plants, mechanical kinetic energy of moving water is transformed into what form of energy?

• mechanical
• electrical
• chemical
• potential

Heat energy is transferred from areas of ---

• warmer temperatures to areas of warmer temperatures
• cooler temperatures to areas of warmer temperatures
• warmer temperatures to areas of cooler temperatures
• cooler temperatures to areas of cooler temperatures

What device is made of coils of wire with an electrical current passing through it in order to generate a magnetic field? 

• electromagnet
• circuit protector
• electron magnet
• magnetic circuit

Which device uses mechanical energy to produce electrical energy?

• battery
• electric motor
• magnet 
• generator

 In an electric motor, the energy transformation begins as  ----

• electrical and becomes chemical
• mechanical and becomes electrical
• electrical and becomes mechanical
• mechanical and becomes chemical