Energy and Electricity Test review

A metal spoon sitting in a mug of hot chocolate becomes warm.

• conduction

• convection

• radiation

• electric

The pivot point of a lever is known as a ____________________________.

• wedge

• load

• force

• fulcrum

What is an inclined plane wrapped around a shaft?

• wheel and axle

• wedge

• magnet

• screw

A(n)________________________ machine has 100% efficiency.

• joule

• ideal

• watt

• simple

Which has one type of movement?

• complex

• vacuum

• compound

• simple

Which is the unit for WORK?

• watt

• inches

• force

• joule

Which device converts energy of motion into electrical energy?

• motor

• generator

• electromagnet

• electricity

Which type of energy is converted from food into energy for our body to use?

• kinetic

• chemical

• electrical

• potential

This device converts electrical energy into LIGHT and THERMAL energy.

• generator

• fan

• motor

• lightbulb

Chicken roasts above a fire.

• conduction

• convection

• radiation

• thermal