A material that allows electric current or heat energy to flow is called a ​ ​ ​ (a)  

• conductor
• circuit
• insulator
• magnet

Which item is conductor?

• steel

• wood

• plants

• plastic

When you get a hot coffee at Starbucks, why does it have a cardboard sleeve around it?

• to conduct thermal energy

• to insulate thermal energy

• to cool off the coffee

• to make the coffee hotter

Tags

NGSS.MS-PS3-3

What is the role of a battery in a circuit?

• carrying electrical energy to the lightbulb

• converting electrical energy to light energy

• turning the lightbulb on and off

• producing energy for the circuit

All of the following increase the power of an electromagnet EXCEPT

• add another battery

• coil the wire tighter

• add length to the wire

• change to a more powerful battery

T or F. A switch is required to complete a circuit.

• True

• False

What form of energy drives this drum set?

• mechanical energy

• electrical energy

• thermal energy

• sound energy

What two forms of energy are produced by a campfire?

• thermal and sound

• light and mechanical

• thermal and light

• electrical and light

Which household appliance converts electrical energy to thermal energy?

• blow dryer

• ice maker

• washing machine

• blender

The Sun provides Earth with which of the following types of energy?

• light and sound

• thermal and light

• mechanical and light

• thermal and electrical