Inspire Science

A student is toasting bread in a toaster. Which of the following describes what is happening to the energy?

• some energy is destroyed

• thermal energy is created

• the electrical energy is transformed to thermal energy in the toaster, which toasts the bread

• the electrical energy is transformed to chemical energy in the toaster, which toasts the bread

You are planning an investigation about objects that produce mostly sound energy. Which item would be the best choice to use for this investigation?

• a stove

• a fan

• a candle

• a drum

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

Which best describes the transfer of energy in a washing machine?

• electric energy to kinetic energy

• thermal energy to kinetic energy

• electric energy to thermal energy

• kinetic energy to electric energy

Tags

NGSS.MS-PS3-5

A student is planning and carrying out an investigation about energy using a model airplane. They need a voltage source to make the propeller spin. They screw two tiny lightbulbs onto each wing, but the propeller does not turn. The student inserts a battery into the plane and connects wires from the battery to the propeller. Suddenly the propeller begins to spin. Based on the evidence of energy transfer, which item is a voltage source?

• the lightbulb

• the battery

• the airplane itself

• the wire

Imagine that you are going to plan and carry out an investigation into what the guests could do to cool off their tea if it is too hot to drink. Which solutions would be the best to allow the energy transfer in the tea? Select the TWO that apply.

• They could let the tea sit until some of the thermal energy transfers to the cooler air.

• They could pour it into a thermos cup that is a good insulator and drink it later.

• They could put a lid or a napkin over the tea cup.

• They could put something cold in the tea to help transfer the energy away from it.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-5

NGSS.MS-PS3-4

Which examples show the use of light energy? Select THREE that apply.

• solar panels on the roof of a house

• sunlight heating up a lake

• hearing thunder during a storm

• seeing stars in the night sky

Tags

NGSS.MS-LS1-6

What is sound? Select TWO that apply.

• sound is a type of kinetic energy

• sound happens because of stored energy in a material

• sound begins with a vibration

• sound travels at the same speed through different media

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

A vibration is

• a strong sound

• a back-and-forth motion

• a wave that transfers energy through a material and spreads outward in all directions from a vibration

Which statements about the material the tea kettles are made of are true based on evidence from the text? Select the THREE that apply.

• the first tea kettle is made from a material that is a better conductor of heat than the second tea kettle

• the tea kettles are made of the same material, so they conduct heat equally

• the first tea kettle could be made of copper and the second tea kettle could be made of glass

• the tea kettles are made of different materials, so they do not conduct heat equally

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

Which type of energy transformation occurs between the stove and the tea kettles?

• sound energy to electrical energy

• thermal energy to electrical energy

• chemical energy to thermal energy

• electrical energy to thermal energy

Tags

NGSS.MS-PS1-4