Uses Of Energy M.E.L.T.S.

Which of these devices is the only one NOT designed to produce both sound and light energy?

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NGSS.MS-PS4-2

A family was vacationing in the mountains in a cabin that had no electrical power. They needed boiling water in order to prepare dried soup mix.

With no electrical energy available, which method would most likely provide enough thermal energy to to quickly heat the water to boiling?

• Using a microwave oven to heat water in a glass jar for 3 minutes

• shaking the water in a closed, insulated plastic bottle for 3 minutes

• shining a battery-powered flashlight on a metal container of water for 10 minutes

• placing a metal pot of water over a glowing charcoal in an outdoor grill for 10 minutes

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NGSS.MS-PS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-4

They toy oven shown uses a light bulb to bake small cakes. What type of energy does the toy use to bake the cakes?

• Electrical and thermal

• Mechanical and electrical

• Thermal and mechanical

• Light and sound

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

Which object requires only mechanical energy to perform its main function?

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This circuit has 5 light-emitting diode, or LED, lights. It is also has one battery and one switch. Which LEDs produce light when the switch is in the position shown?

• LEDs 1, 3, and 4 only

• LEDs 1, 2, 3, and 4

• LEDs 3 and 4 only

• LEDs 1, 3, 4, and 5

The diagram shows an electric circuit with four bells that a student plans to build. When the student connects the wires as shown, which of the bells will ring?

• Bell 1 only

• Bells 1 and 4 only

• Bells 3 and 4 only

• Bells 1, 2,3 and 4

Three different objects that use the same source of energy are shown below.

What is the energy source for these objects?

• Light energy

• Mechanical energy

• Sound energy

• Electrical energy

The diagram shows a series circuit with three lit bulbs. How many of the bulbs will remain lit if the wire is cut at the point shown by the arrow?

• 0

• 1

• 2

• 3

A thin beam of light is shown in this picture. What does the picture demonstrate about light?

• Light and its reflections travel in straight lines.

• Light cannot reflect from more than one surface.

• Light that goes through water cannot travel in straight line.

• Light can travel in a circular path.

Tags

NGSS.MS-PS4-2

The picture shows how a light ray behaves with two different types of materials. Which table best describes the behavior of the light ray as it encounters the materials?

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