This summer you decided to build a solar oven. Your first attempt was to make hotdogs. You placed the hotdog in the oven where ______ energy is converted to ______ energy and your hotdog is cooked. If you wanted to make your oven cook hotter, you could increase the solar energy being collected using ______ to line your oven.

• solar; heat; aluminum foil

• chemical; kinetic; plastic wrap

• electrical; sound; copper wire

• nuclear; light; cardboard

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-4

Brian is building a television from a kit that he ordered. When he finishes and plugs in the device, it will play TV shows and movies. This device will convert ______ into ______ energy.

• electrical; sound and light

• mechanical; chemical

• thermal; electrical

• chemical; mechanical

A light bulb produces which type of energy?

• Thermal energy

• Chemical energy

• Nuclear energy

• Sound energy

Tags

NGSS.MS-PS1-4

When electric current flows through the metal filament of a light bulb, electrical energy is converted to—

• mechanical and chemical energy

• chemical energy

• heat energy

• heat and light energy

Which of the answers below is an example of electrical energy transferring to light energy?

• turning on a flashlight

• holding a fire torch to see where you are going

• lighting a match

• using binoculars

What type of energy transformation occurs in the solar oven?

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-4

This is a picture of one of the solar ovens. Sarah, one of the group members, said she thought they should cover the bottom of the box with black paper and leave the aluminum foil up above. What do you think? Is Sarah correct? Why or why not?

• No. The top and bottom should be covered with aluminum foil to reflect the rays of the sun.

• No. The bottom and sides of the box should be covered with rolled up newspapers to help insulate the box.

• Yes. A black bottom will absorb more heat energy when the sunlight is reflected into the box by the foil.

• Not completely. Sarah is correct about the bottom. It should be black. But the rest of the box should be black to absorb heat energy.

Tags

NGSS.MS-ETS1-4

NGSS.MS-PS3-3

Describe the energy transformation that took place in the students' oven.

• A. radiant energy to heat energy

• B. radiant energy to light energy

• C. reflected energy to heat energy

• D. light energy to mechanical energy

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-4

Students in Mr. Green's class are studying energy. Yesterday Mr. Green gave each student group the materials you see above. The students were supposed to use the materials to produce an energy transformation. The students all decided that they should build a simple circuit. Each group was required to sketch their ideas and then build their circuit. This is an example of one group's circuit: Most of the student groups constructed similar circuits. Mr. Green asked, "What is the energy transformation or transformations that are taking place in your circuit?" Which group correctly explained the circuit in terms of the transformation taking place?

• A. chemical energy to light energy - The battery has chemical energy and that is transformed into light energy in the light bulb.

• B. electrical energy to light energy - The battery has electrical energy and that is transformed into light energy in the light bulb.

Tags

NGSS.MS-PS3-5

Sandy is building a small toy car. He wants to use a balloon to power the toy car. He fills a balloon with air and then attaches a straw to the balloon. He tapes the balloon-straw combination to the car and then releases the end of the balloon. The toy moves forward as the air from the balloon comes out the back of the straw. What can Sandy do to make the toy car move faster?

• Use less air in the balloon.

• Blow up the balloon more.

• Use a longer straw.

• Use larger tires.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2