Energy Review

Mr. Rodando's class is investigating different types of energy. In which of the following observations would the students observe both electrical and mechanical energy?

• Doing jumping jacks

• Turning on the fan

• Standing near a campfire

• Singing and running in place

• Turning on a vacuum

An iron rod is placed into a flame and energy is transferred down the rod. What type of energy is being transferred?

• light

• thermal

• sound

• electrical

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

Look at the objects below. Which objects are used primarily to provide thermal energy? Choose ALL specified objects by clicking the appropriate boxes. There will be more than one answer.

Tags

NGSS.MS-PS1-4

What term describes a material that allows electric current to flow through it freely?

• conductor

• insulator

• semiconductor

• resistor

Students are experimenting with different materials to determine their ability to conduct electricity. A block of wood was placed in the middle of the circuit, as shown in the diagram. What happens to the light bulb when the switch is closed?

• The light bulb turns on brighter than normal.

• The light bulb turns on.

• The light bulb turns on dimmer than normal.

• The light bulb does not turn on.

Which answer supports your answer choice in Part A?

• The block of wood is a conductor.

• The block of wood is magnetic.

• The block of wood has a charge.

Tags

NGSS.MS-PS2-3

Based on the table, which materials would best insulate the handle of a spatula? Select TWO correct answers.

• A. copper

• B. steel

• C. aluminum

• D. wood

• E. plastic

Tags

NGSS.MS-PS3-3

Conductors are made from many kinds of materials. Choose THREE materials that are NOT used as conductors.

• Plastic

• Steel

• Plants

• Wood

• Copper

The illustration to the left shows an electrical circuit. The circuit has a lightbulb, a battery, a wire, and a switch. Which of the following is the role of the battery in the circuit?

• A. turning the lightbulb on and off

• B. producing energy for the circuit

• C. carrying electrical energy to the lightbulb

• D. changing the electrical energy into light energy

Which of the following is the role of the wire in the circuit?

• turning the lightbulb on and off

• producing energy for the circuit

• carrying electrical energy to the lightbulb

• changing the electrical energy into light energy

Tags

NGSS.MS-PS3-5